/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-node-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 11:13:32,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 11:13:32,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 11:13:32,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 11:13:32,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 11:13:32,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 11:13:32,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 11:13:32,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 11:13:32,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 11:13:32,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 11:13:32,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 11:13:32,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 11:13:32,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 11:13:32,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 11:13:32,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 11:13:32,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 11:13:32,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 11:13:32,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 11:13:32,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 11:13:32,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 11:13:32,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 11:13:32,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 11:13:32,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 11:13:32,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 11:13:32,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 11:13:32,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 11:13:32,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 11:13:32,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 11:13:32,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 11:13:32,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 11:13:32,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 11:13:32,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 11:13:32,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 11:13:32,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 11:13:32,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 11:13:32,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 11:13:32,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 11:13:32,700 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 11:13:32,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 11:13:32,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 11:13:32,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 11:13:32,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 11:13:32,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 11:13:32,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 11:13:32,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 11:13:32,702 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 11:13:32,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 11:13:32,703 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 11:13:32,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 11:13:32,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 11:13:32,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 11:13:32,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 11:13:32,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 11:13:32,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 11:13:32,703 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 11:13:32,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 11:13:32,704 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 11:13:32,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 11:13:32,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 11:13:32,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 11:13:32,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 11:13:32,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 11:13:32,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:13:32,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 11:13:32,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 11:13:32,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 11:13:32,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 11:13:32,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 11:13:32,705 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 11:13:32,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 11:13:32,706 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 11:13:32,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 11:13:32,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 11:13:32,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 11:13:32,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 11:13:32,905 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 11:13:32,906 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 11:13:32,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-node-symm.wvr.c [2022-01-18 11:13:32,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110efd335/470554e321af4a2b938e62b1f1cabcdd/FLAG82a508704 [2022-01-18 11:13:33,304 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 11:13:33,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-symm.wvr.c [2022-01-18 11:13:33,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110efd335/470554e321af4a2b938e62b1f1cabcdd/FLAG82a508704 [2022-01-18 11:13:33,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110efd335/470554e321af4a2b938e62b1f1cabcdd [2022-01-18 11:13:33,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 11:13:33,318 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 11:13:33,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 11:13:33,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 11:13:33,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 11:13:33,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@724e4a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33, skipping insertion in model container [2022-01-18 11:13:33,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 11:13:33,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 11:13:33,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-symm.wvr.c[3305,3318] [2022-01-18 11:13:33,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:13:33,528 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 11:13:33,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-symm.wvr.c[3305,3318] [2022-01-18 11:13:33,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:13:33,553 INFO L208 MainTranslator]: Completed translation [2022-01-18 11:13:33,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33 WrapperNode [2022-01-18 11:13:33,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 11:13:33,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 11:13:33,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 11:13:33,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 11:13:33,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,602 INFO L137 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 314 [2022-01-18 11:13:33,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 11:13:33,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 11:13:33,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 11:13:33,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 11:13:33,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 11:13:33,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 11:13:33,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 11:13:33,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 11:13:33,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (1/1) ... [2022-01-18 11:13:33,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:13:33,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:13:33,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 11:13:33,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 11:13:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 11:13:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 11:13:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 11:13:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 11:13:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 11:13:33,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 11:13:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 11:13:33,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 11:13:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 11:13:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 11:13:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 11:13:33,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 11:13:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 11:13:33,702 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 11:13:33,789 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 11:13:33,790 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 11:13:34,120 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 11:13:34,128 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 11:13:34,128 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 11:13:34,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:13:34 BoogieIcfgContainer [2022-01-18 11:13:34,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 11:13:34,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 11:13:34,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 11:13:34,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 11:13:34,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:13:33" (1/3) ... [2022-01-18 11:13:34,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6221346a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:13:34, skipping insertion in model container [2022-01-18 11:13:34,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:13:33" (2/3) ... [2022-01-18 11:13:34,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6221346a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:13:34, skipping insertion in model container [2022-01-18 11:13:34,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:13:34" (3/3) ... [2022-01-18 11:13:34,138 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2022-01-18 11:13:34,141 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 11:13:34,141 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 11:13:34,141 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 11:13:34,141 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 11:13:34,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,237 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,252 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,252 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,252 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,252 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,252 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,253 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,253 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,259 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,259 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,266 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:13:34,267 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 11:13:34,308 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 11:13:34,313 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 11:13:34,313 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 11:13:34,329 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 385 places, 414 transitions, 844 flow [2022-01-18 11:13:34,675 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14694 states, 14693 states have (on average 2.8599333015721773) internal successors, (42021), 14693 states have internal predecessors, (42021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:34,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 14694 states, 14693 states have (on average 2.8599333015721773) internal successors, (42021), 14693 states have internal predecessors, (42021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:34,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-01-18 11:13:34,830 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:34,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:34,831 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:34,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:34,835 INFO L85 PathProgramCache]: Analyzing trace with hash -670772536, now seen corresponding path program 1 times [2022-01-18 11:13:34,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:34,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303513638] [2022-01-18 11:13:34,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:34,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:35,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:35,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:35,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303513638] [2022-01-18 11:13:35,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303513638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:35,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:35,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 11:13:35,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668227637] [2022-01-18 11:13:35,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:35,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 11:13:35,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:35,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 11:13:35,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 11:13:35,150 INFO L87 Difference]: Start difference. First operand has 14694 states, 14693 states have (on average 2.8599333015721773) internal successors, (42021), 14693 states have internal predecessors, (42021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:35,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:35,345 INFO L93 Difference]: Finished difference Result 14694 states and 41043 transitions. [2022-01-18 11:13:35,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 11:13:35,347 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2022-01-18 11:13:35,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:35,427 INFO L225 Difference]: With dead ends: 14694 [2022-01-18 11:13:35,428 INFO L226 Difference]: Without dead ends: 13736 [2022-01-18 11:13:35,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 11:13:35,431 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:35,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 379 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:13:35,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13736 states. [2022-01-18 11:13:35,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13736 to 13736. [2022-01-18 11:13:35,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13736 states, 13735 states have (on average 2.795413178012377) internal successors, (38395), 13735 states have internal predecessors, (38395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:35,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13736 states to 13736 states and 38395 transitions. [2022-01-18 11:13:35,948 INFO L78 Accepts]: Start accepts. Automaton has 13736 states and 38395 transitions. Word has length 259 [2022-01-18 11:13:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:35,950 INFO L470 AbstractCegarLoop]: Abstraction has 13736 states and 38395 transitions. [2022-01-18 11:13:35,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:35,950 INFO L276 IsEmpty]: Start isEmpty. Operand 13736 states and 38395 transitions. [2022-01-18 11:13:35,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-01-18 11:13:35,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:35,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:35,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 11:13:35,982 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:35,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:35,984 INFO L85 PathProgramCache]: Analyzing trace with hash 173473607, now seen corresponding path program 1 times [2022-01-18 11:13:35,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:35,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608296282] [2022-01-18 11:13:35,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:35,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:36,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:36,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608296282] [2022-01-18 11:13:36,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608296282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:36,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:36,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:13:36,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141369513] [2022-01-18 11:13:36,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:36,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:13:36,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:36,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:13:36,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:13:36,198 INFO L87 Difference]: Start difference. First operand 13736 states and 38395 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:36,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:36,309 INFO L93 Difference]: Finished difference Result 14891 states and 41620 transitions. [2022-01-18 11:13:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:13:36,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2022-01-18 11:13:36,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:36,371 INFO L225 Difference]: With dead ends: 14891 [2022-01-18 11:13:36,372 INFO L226 Difference]: Without dead ends: 14891 [2022-01-18 11:13:36,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:13:36,376 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 93 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:36,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 762 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:13:36,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14891 states. [2022-01-18 11:13:36,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14891 to 13967. [2022-01-18 11:13:36,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13967 states, 13966 states have (on average 2.7953601603895173) internal successors, (39040), 13966 states have internal predecessors, (39040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:36,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13967 states to 13967 states and 39040 transitions. [2022-01-18 11:13:36,746 INFO L78 Accepts]: Start accepts. Automaton has 13967 states and 39040 transitions. Word has length 259 [2022-01-18 11:13:36,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:36,749 INFO L470 AbstractCegarLoop]: Abstraction has 13967 states and 39040 transitions. [2022-01-18 11:13:36,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:36,749 INFO L276 IsEmpty]: Start isEmpty. Operand 13967 states and 39040 transitions. [2022-01-18 11:13:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-01-18 11:13:36,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:36,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:36,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 11:13:36,776 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:36,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:36,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1506369353, now seen corresponding path program 1 times [2022-01-18 11:13:36,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:36,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262946742] [2022-01-18 11:13:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:36,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:36,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:36,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:36,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262946742] [2022-01-18 11:13:36,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262946742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:36,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:36,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:13:36,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367246221] [2022-01-18 11:13:36,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:36,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:13:36,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:36,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:13:36,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:13:36,888 INFO L87 Difference]: Start difference. First operand 13967 states and 39040 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:36,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:36,978 INFO L93 Difference]: Finished difference Result 15157 states and 42350 transitions. [2022-01-18 11:13:36,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:13:36,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 261 [2022-01-18 11:13:36,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:37,095 INFO L225 Difference]: With dead ends: 15157 [2022-01-18 11:13:37,095 INFO L226 Difference]: Without dead ends: 15157 [2022-01-18 11:13:37,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:13:37,100 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 66 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:37,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 765 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:13:37,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15157 states. [2022-01-18 11:13:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15157 to 14205. [2022-01-18 11:13:37,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14205 states, 14204 states have (on average 2.795128132920304) internal successors, (39702), 14204 states have internal predecessors, (39702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:37,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14205 states to 14205 states and 39702 transitions. [2022-01-18 11:13:37,396 INFO L78 Accepts]: Start accepts. Automaton has 14205 states and 39702 transitions. Word has length 261 [2022-01-18 11:13:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:37,396 INFO L470 AbstractCegarLoop]: Abstraction has 14205 states and 39702 transitions. [2022-01-18 11:13:37,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:37,397 INFO L276 IsEmpty]: Start isEmpty. Operand 14205 states and 39702 transitions. [2022-01-18 11:13:37,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:13:37,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:37,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:37,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 11:13:37,439 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:37,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:37,439 INFO L85 PathProgramCache]: Analyzing trace with hash -143658131, now seen corresponding path program 1 times [2022-01-18 11:13:37,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:37,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966633762] [2022-01-18 11:13:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:37,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:38,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:38,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966633762] [2022-01-18 11:13:38,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966633762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:38,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:38,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:13:38,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846968916] [2022-01-18 11:13:38,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:38,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:13:38,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:13:38,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:13:38,076 INFO L87 Difference]: Start difference. First operand 14205 states and 39702 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:40,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:40,210 INFO L93 Difference]: Finished difference Result 35879 states and 99801 transitions. [2022-01-18 11:13:40,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:13:40,211 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:13:40,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:40,294 INFO L225 Difference]: With dead ends: 35879 [2022-01-18 11:13:40,294 INFO L226 Difference]: Without dead ends: 35879 [2022-01-18 11:13:40,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=889, Invalid=3271, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:13:40,299 INFO L933 BasicCegarLoop]: 919 mSDtfsCounter, 4149 mSDsluCounter, 10367 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4149 SdHoareTripleChecker+Valid, 11113 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:40,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4149 Valid, 11113 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:13:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35879 states. [2022-01-18 11:13:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35879 to 16237. [2022-01-18 11:13:40,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16237 states, 16236 states have (on average 2.814671101256467) internal successors, (45699), 16236 states have internal predecessors, (45699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:40,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16237 states to 16237 states and 45699 transitions. [2022-01-18 11:13:40,756 INFO L78 Accepts]: Start accepts. Automaton has 16237 states and 45699 transitions. Word has length 263 [2022-01-18 11:13:40,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:40,757 INFO L470 AbstractCegarLoop]: Abstraction has 16237 states and 45699 transitions. [2022-01-18 11:13:40,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:40,757 INFO L276 IsEmpty]: Start isEmpty. Operand 16237 states and 45699 transitions. [2022-01-18 11:13:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:13:40,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:40,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:40,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 11:13:40,787 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:40,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:40,787 INFO L85 PathProgramCache]: Analyzing trace with hash 808311701, now seen corresponding path program 2 times [2022-01-18 11:13:40,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:40,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135675426] [2022-01-18 11:13:40,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:40,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:41,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:41,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135675426] [2022-01-18 11:13:41,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135675426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:41,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:41,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:13:41,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203261904] [2022-01-18 11:13:41,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:41,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:13:41,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:41,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:13:41,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:13:41,283 INFO L87 Difference]: Start difference. First operand 16237 states and 45699 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:43,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:43,226 INFO L93 Difference]: Finished difference Result 36965 states and 103018 transitions. [2022-01-18 11:13:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:13:43,226 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:13:43,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:43,306 INFO L225 Difference]: With dead ends: 36965 [2022-01-18 11:13:43,306 INFO L226 Difference]: Without dead ends: 36965 [2022-01-18 11:13:43,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=923, Invalid=3499, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:13:43,308 INFO L933 BasicCegarLoop]: 936 mSDtfsCounter, 4344 mSDsluCounter, 10833 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4344 SdHoareTripleChecker+Valid, 11637 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:43,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4344 Valid, 11637 Invalid, 2096 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:13:43,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36965 states. [2022-01-18 11:13:43,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36965 to 17380. [2022-01-18 11:13:43,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17380 states, 17379 states have (on average 2.81972495540595) internal successors, (49004), 17379 states have internal predecessors, (49004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:43,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17380 states to 17380 states and 49004 transitions. [2022-01-18 11:13:43,791 INFO L78 Accepts]: Start accepts. Automaton has 17380 states and 49004 transitions. Word has length 263 [2022-01-18 11:13:43,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:43,792 INFO L470 AbstractCegarLoop]: Abstraction has 17380 states and 49004 transitions. [2022-01-18 11:13:43,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:43,792 INFO L276 IsEmpty]: Start isEmpty. Operand 17380 states and 49004 transitions. [2022-01-18 11:13:43,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:13:43,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:43,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:43,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 11:13:43,822 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:43,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:43,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1668153289, now seen corresponding path program 3 times [2022-01-18 11:13:43,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:43,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589822378] [2022-01-18 11:13:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:43,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:44,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:44,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:44,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589822378] [2022-01-18 11:13:44,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589822378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:44,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:44,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:13:44,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154904693] [2022-01-18 11:13:44,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:44,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:13:44,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:44,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:13:44,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:13:44,237 INFO L87 Difference]: Start difference. First operand 17380 states and 49004 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:45,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:45,955 INFO L93 Difference]: Finished difference Result 37532 states and 104647 transitions. [2022-01-18 11:13:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:13:45,955 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:13:45,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:46,034 INFO L225 Difference]: With dead ends: 37532 [2022-01-18 11:13:46,034 INFO L226 Difference]: Without dead ends: 37532 [2022-01-18 11:13:46,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=826, Invalid=3206, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:13:46,035 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 3398 mSDsluCounter, 10602 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3398 SdHoareTripleChecker+Valid, 11379 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:46,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3398 Valid, 11379 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:13:46,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37532 states. [2022-01-18 11:13:46,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37532 to 17443. [2022-01-18 11:13:46,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17443 states, 17442 states have (on average 2.8191147804150902) internal successors, (49171), 17442 states have internal predecessors, (49171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17443 states to 17443 states and 49171 transitions. [2022-01-18 11:13:46,429 INFO L78 Accepts]: Start accepts. Automaton has 17443 states and 49171 transitions. Word has length 263 [2022-01-18 11:13:46,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:46,430 INFO L470 AbstractCegarLoop]: Abstraction has 17443 states and 49171 transitions. [2022-01-18 11:13:46,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:46,430 INFO L276 IsEmpty]: Start isEmpty. Operand 17443 states and 49171 transitions. [2022-01-18 11:13:46,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:13:46,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:46,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:46,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 11:13:46,454 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:46,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:46,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1822535429, now seen corresponding path program 4 times [2022-01-18 11:13:46,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:46,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139648658] [2022-01-18 11:13:46,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:46,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:46,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:46,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139648658] [2022-01-18 11:13:46,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139648658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:46,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:46,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:13:46,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529861351] [2022-01-18 11:13:46,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:46,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:13:46,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:46,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:13:46,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:13:46,820 INFO L87 Difference]: Start difference. First operand 17443 states and 49171 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:48,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:48,575 INFO L93 Difference]: Finished difference Result 41425 states and 114766 transitions. [2022-01-18 11:13:48,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:13:48,575 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:13:48,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:48,658 INFO L225 Difference]: With dead ends: 41425 [2022-01-18 11:13:48,658 INFO L226 Difference]: Without dead ends: 41425 [2022-01-18 11:13:48,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=857, Invalid=3303, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:13:48,660 INFO L933 BasicCegarLoop]: 918 mSDtfsCounter, 3970 mSDsluCounter, 10659 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3970 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:48,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3970 Valid, 11446 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:13:48,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41425 states. [2022-01-18 11:13:49,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41425 to 17569. [2022-01-18 11:13:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17569 states, 17568 states have (on average 2.817907559198543) internal successors, (49505), 17568 states have internal predecessors, (49505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:49,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17569 states to 17569 states and 49505 transitions. [2022-01-18 11:13:49,174 INFO L78 Accepts]: Start accepts. Automaton has 17569 states and 49505 transitions. Word has length 263 [2022-01-18 11:13:49,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:49,175 INFO L470 AbstractCegarLoop]: Abstraction has 17569 states and 49505 transitions. [2022-01-18 11:13:49,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:49,175 INFO L276 IsEmpty]: Start isEmpty. Operand 17569 states and 49505 transitions. [2022-01-18 11:13:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:13:49,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:49,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:49,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 11:13:49,203 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:49,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:49,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1758360647, now seen corresponding path program 5 times [2022-01-18 11:13:49,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:49,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195391768] [2022-01-18 11:13:49,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:49,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:49,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:49,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:49,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195391768] [2022-01-18 11:13:49,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195391768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:49,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:49,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:13:49,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694606621] [2022-01-18 11:13:49,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:49,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:13:49,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:49,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:13:49,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:13:49,574 INFO L87 Difference]: Start difference. First operand 17569 states and 49505 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:51,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:51,039 INFO L93 Difference]: Finished difference Result 24959 states and 69366 transitions. [2022-01-18 11:13:51,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:13:51,059 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:13:51,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:51,107 INFO L225 Difference]: With dead ends: 24959 [2022-01-18 11:13:51,107 INFO L226 Difference]: Without dead ends: 24959 [2022-01-18 11:13:51,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=700, Invalid=2840, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:13:51,108 INFO L933 BasicCegarLoop]: 886 mSDtfsCounter, 2757 mSDsluCounter, 10544 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2757 SdHoareTripleChecker+Valid, 11293 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:51,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2757 Valid, 11293 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:13:51,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24959 states. [2022-01-18 11:13:51,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24959 to 17632. [2022-01-18 11:13:51,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17632 states, 17631 states have (on average 2.8173104191480913) internal successors, (49672), 17631 states have internal predecessors, (49672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:51,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17632 states to 17632 states and 49672 transitions. [2022-01-18 11:13:51,497 INFO L78 Accepts]: Start accepts. Automaton has 17632 states and 49672 transitions. Word has length 263 [2022-01-18 11:13:51,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:51,498 INFO L470 AbstractCegarLoop]: Abstraction has 17632 states and 49672 transitions. [2022-01-18 11:13:51,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:51,498 INFO L276 IsEmpty]: Start isEmpty. Operand 17632 states and 49672 transitions. [2022-01-18 11:13:51,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:13:51,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:51,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:51,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 11:13:51,523 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:51,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:51,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1044610155, now seen corresponding path program 6 times [2022-01-18 11:13:51,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:51,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143475825] [2022-01-18 11:13:51,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:51,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:51,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:51,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143475825] [2022-01-18 11:13:51,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143475825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:51,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:51,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:13:51,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570875497] [2022-01-18 11:13:51,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:51,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:13:51,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:51,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:13:51,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:13:51,901 INFO L87 Difference]: Start difference. First operand 17632 states and 49672 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:53,331 INFO L93 Difference]: Finished difference Result 29113 states and 80309 transitions. [2022-01-18 11:13:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:13:53,332 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:13:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:53,379 INFO L225 Difference]: With dead ends: 29113 [2022-01-18 11:13:53,379 INFO L226 Difference]: Without dead ends: 29113 [2022-01-18 11:13:53,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=711, Invalid=2829, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:13:53,381 INFO L933 BasicCegarLoop]: 924 mSDtfsCounter, 3338 mSDsluCounter, 10522 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3338 SdHoareTripleChecker+Valid, 11304 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:53,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3338 Valid, 11304 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:13:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29113 states. [2022-01-18 11:13:53,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29113 to 17775. [2022-01-18 11:13:53,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17775 states, 17774 states have (on average 2.812535163722291) internal successors, (49990), 17774 states have internal predecessors, (49990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17775 states to 17775 states and 49990 transitions. [2022-01-18 11:13:53,756 INFO L78 Accepts]: Start accepts. Automaton has 17775 states and 49990 transitions. Word has length 263 [2022-01-18 11:13:53,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:53,756 INFO L470 AbstractCegarLoop]: Abstraction has 17775 states and 49990 transitions. [2022-01-18 11:13:53,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:53,756 INFO L276 IsEmpty]: Start isEmpty. Operand 17775 states and 49990 transitions. [2022-01-18 11:13:53,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:13:53,781 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:53,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:53,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 11:13:53,782 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:53,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:53,782 INFO L85 PathProgramCache]: Analyzing trace with hash 46812049, now seen corresponding path program 7 times [2022-01-18 11:13:53,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:53,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671758689] [2022-01-18 11:13:53,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:53,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:54,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:54,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:54,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671758689] [2022-01-18 11:13:54,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671758689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:54,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:54,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:13:54,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014906921] [2022-01-18 11:13:54,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:54,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:13:54,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:54,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:13:54,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:13:54,136 INFO L87 Difference]: Start difference. First operand 17775 states and 49990 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:55,642 INFO L93 Difference]: Finished difference Result 39196 states and 109490 transitions. [2022-01-18 11:13:55,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:13:55,643 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:13:55,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:55,713 INFO L225 Difference]: With dead ends: 39196 [2022-01-18 11:13:55,713 INFO L226 Difference]: Without dead ends: 39196 [2022-01-18 11:13:55,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=648, Invalid=2658, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:13:55,714 INFO L933 BasicCegarLoop]: 819 mSDtfsCounter, 3138 mSDsluCounter, 10482 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 11161 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:55,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3138 Valid, 11161 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2127 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:13:55,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39196 states. [2022-01-18 11:13:56,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39196 to 18151. [2022-01-18 11:13:56,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18151 states, 18150 states have (on average 2.8279889807162535) internal successors, (51328), 18150 states have internal predecessors, (51328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:56,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18151 states to 18151 states and 51328 transitions. [2022-01-18 11:13:56,102 INFO L78 Accepts]: Start accepts. Automaton has 18151 states and 51328 transitions. Word has length 263 [2022-01-18 11:13:56,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:56,102 INFO L470 AbstractCegarLoop]: Abstraction has 18151 states and 51328 transitions. [2022-01-18 11:13:56,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:56,102 INFO L276 IsEmpty]: Start isEmpty. Operand 18151 states and 51328 transitions. [2022-01-18 11:13:56,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:13:56,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:56,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:56,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 11:13:56,126 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:56,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:56,127 INFO L85 PathProgramCache]: Analyzing trace with hash 998781881, now seen corresponding path program 8 times [2022-01-18 11:13:56,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:56,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868490163] [2022-01-18 11:13:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:56,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:56,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:56,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868490163] [2022-01-18 11:13:56,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868490163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:56,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:56,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:13:56,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816583673] [2022-01-18 11:13:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:56,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:13:56,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:56,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:13:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:13:56,516 INFO L87 Difference]: Start difference. First operand 18151 states and 51328 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:58,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:58,145 INFO L93 Difference]: Finished difference Result 39920 states and 111765 transitions. [2022-01-18 11:13:58,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:13:58,145 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:13:58,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:58,223 INFO L225 Difference]: With dead ends: 39920 [2022-01-18 11:13:58,223 INFO L226 Difference]: Without dead ends: 39920 [2022-01-18 11:13:58,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=748, Invalid=3034, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:13:58,224 INFO L933 BasicCegarLoop]: 882 mSDtfsCounter, 3569 mSDsluCounter, 10648 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3569 SdHoareTripleChecker+Valid, 11418 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:58,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3569 Valid, 11418 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:13:58,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39920 states. [2022-01-18 11:13:58,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39920 to 19267. [2022-01-18 11:13:58,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19267 states, 19266 states have (on average 2.8369666770476485) internal successors, (54657), 19266 states have internal predecessors, (54657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:58,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19267 states to 19267 states and 54657 transitions. [2022-01-18 11:13:58,741 INFO L78 Accepts]: Start accepts. Automaton has 19267 states and 54657 transitions. Word has length 263 [2022-01-18 11:13:58,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:58,742 INFO L470 AbstractCegarLoop]: Abstraction has 19267 states and 54657 transitions. [2022-01-18 11:13:58,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:58,742 INFO L276 IsEmpty]: Start isEmpty. Operand 19267 states and 54657 transitions. [2022-01-18 11:13:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:13:58,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:58,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:58,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 11:13:58,769 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:58,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:58,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2051743033, now seen corresponding path program 9 times [2022-01-18 11:13:58,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:58,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085040445] [2022-01-18 11:13:58,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:58,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:59,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:59,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:59,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085040445] [2022-01-18 11:13:59,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085040445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:59,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:59,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:13:59,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443122464] [2022-01-18 11:13:59,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:59,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:13:59,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:59,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:13:59,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:13:59,146 INFO L87 Difference]: Start difference. First operand 19267 states and 54657 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:00,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:00,498 INFO L93 Difference]: Finished difference Result 25977 states and 72873 transitions. [2022-01-18 11:14:00,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:14:00,499 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:00,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:00,545 INFO L225 Difference]: With dead ends: 25977 [2022-01-18 11:14:00,545 INFO L226 Difference]: Without dead ends: 25977 [2022-01-18 11:14:00,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=609, Invalid=2583, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:14:00,547 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 2416 mSDsluCounter, 9735 mSDsCounter, 0 mSdLazyCounter, 1926 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2416 SdHoareTripleChecker+Valid, 10364 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:00,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2416 Valid, 10364 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1926 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:14:00,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25977 states. [2022-01-18 11:14:00,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25977 to 19330. [2022-01-18 11:14:00,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19330 states, 19329 states have (on average 2.8363598737648092) internal successors, (54824), 19329 states have internal predecessors, (54824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:01,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19330 states to 19330 states and 54824 transitions. [2022-01-18 11:14:01,124 INFO L78 Accepts]: Start accepts. Automaton has 19330 states and 54824 transitions. Word has length 263 [2022-01-18 11:14:01,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:01,124 INFO L470 AbstractCegarLoop]: Abstraction has 19330 states and 54824 transitions. [2022-01-18 11:14:01,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:01,125 INFO L276 IsEmpty]: Start isEmpty. Operand 19330 states and 54824 transitions. [2022-01-18 11:14:01,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:01,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:01,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:01,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 11:14:01,166 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:01,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:01,183 INFO L85 PathProgramCache]: Analyzing trace with hash 770339601, now seen corresponding path program 10 times [2022-01-18 11:14:01,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:01,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80256759] [2022-01-18 11:14:01,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:01,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:01,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:01,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80256759] [2022-01-18 11:14:01,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80256759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:01,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:01,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:01,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889483996] [2022-01-18 11:14:01,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:01,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:01,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:01,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:01,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:01,596 INFO L87 Difference]: Start difference. First operand 19330 states and 54824 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:02,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:02,896 INFO L93 Difference]: Finished difference Result 40715 states and 114284 transitions. [2022-01-18 11:14:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:14:02,897 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:02,967 INFO L225 Difference]: With dead ends: 40715 [2022-01-18 11:14:02,967 INFO L226 Difference]: Without dead ends: 40715 [2022-01-18 11:14:02,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=582, Invalid=2388, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:14:02,969 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 3368 mSDsluCounter, 9375 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3368 SdHoareTripleChecker+Valid, 10015 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:02,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3368 Valid, 10015 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:03,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40715 states. [2022-01-18 11:14:03,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40715 to 20806. [2022-01-18 11:14:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20806 states, 20805 states have (on average 2.8574861812064407) internal successors, (59450), 20805 states have internal predecessors, (59450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:03,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20806 states to 20806 states and 59450 transitions. [2022-01-18 11:14:03,507 INFO L78 Accepts]: Start accepts. Automaton has 20806 states and 59450 transitions. Word has length 263 [2022-01-18 11:14:03,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:03,508 INFO L470 AbstractCegarLoop]: Abstraction has 20806 states and 59450 transitions. [2022-01-18 11:14:03,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:03,508 INFO L276 IsEmpty]: Start isEmpty. Operand 20806 states and 59450 transitions. [2022-01-18 11:14:03,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:03,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:03,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:03,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 11:14:03,538 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:03,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:03,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1722309433, now seen corresponding path program 11 times [2022-01-18 11:14:03,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:03,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312718013] [2022-01-18 11:14:03,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:03,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:03,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:03,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:03,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312718013] [2022-01-18 11:14:03,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312718013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:03,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:03,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:03,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847162106] [2022-01-18 11:14:03,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:03,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:03,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:03,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:03,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:03,904 INFO L87 Difference]: Start difference. First operand 20806 states and 59450 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:05,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:05,371 INFO L93 Difference]: Finished difference Result 41704 states and 117414 transitions. [2022-01-18 11:14:05,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:14:05,371 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:05,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:05,447 INFO L225 Difference]: With dead ends: 41704 [2022-01-18 11:14:05,447 INFO L226 Difference]: Without dead ends: 41704 [2022-01-18 11:14:05,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=707, Invalid=2833, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:14:05,448 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 3327 mSDsluCounter, 9584 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 10280 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:05,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3327 Valid, 10280 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:05,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41704 states. [2022-01-18 11:14:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41704 to 21826. [2022-01-18 11:14:05,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21826 states, 21825 states have (on average 2.859060710194731) internal successors, (62399), 21825 states have internal predecessors, (62399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:06,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21826 states to 21826 states and 62399 transitions. [2022-01-18 11:14:06,029 INFO L78 Accepts]: Start accepts. Automaton has 21826 states and 62399 transitions. Word has length 263 [2022-01-18 11:14:06,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:06,030 INFO L470 AbstractCegarLoop]: Abstraction has 21826 states and 62399 transitions. [2022-01-18 11:14:06,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:06,030 INFO L276 IsEmpty]: Start isEmpty. Operand 21826 states and 62399 transitions. [2022-01-18 11:14:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:06,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:06,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:06,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 11:14:06,148 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:06,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:06,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1027824503, now seen corresponding path program 12 times [2022-01-18 11:14:06,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:06,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694450745] [2022-01-18 11:14:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:06,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:06,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:06,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:06,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694450745] [2022-01-18 11:14:06,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694450745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:06,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:06,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:06,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576803871] [2022-01-18 11:14:06,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:06,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:06,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:06,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:06,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:06,532 INFO L87 Difference]: Start difference. First operand 21826 states and 62399 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:07,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:07,605 INFO L93 Difference]: Finished difference Result 29203 states and 82536 transitions. [2022-01-18 11:14:07,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:14:07,605 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:07,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:07,656 INFO L225 Difference]: With dead ends: 29203 [2022-01-18 11:14:07,656 INFO L226 Difference]: Without dead ends: 29203 [2022-01-18 11:14:07,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=504, Invalid=2148, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:14:07,658 INFO L933 BasicCegarLoop]: 655 mSDtfsCounter, 2815 mSDsluCounter, 8243 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 8797 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:07,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2815 Valid, 8797 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:14:07,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29203 states. [2022-01-18 11:14:07,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29203 to 21946. [2022-01-18 11:14:08,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21946 states, 21945 states have (on average 2.8580997949419) internal successors, (62721), 21945 states have internal predecessors, (62721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:08,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21946 states to 21946 states and 62721 transitions. [2022-01-18 11:14:08,178 INFO L78 Accepts]: Start accepts. Automaton has 21946 states and 62721 transitions. Word has length 263 [2022-01-18 11:14:08,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:08,178 INFO L470 AbstractCegarLoop]: Abstraction has 21946 states and 62721 transitions. [2022-01-18 11:14:08,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:08,179 INFO L276 IsEmpty]: Start isEmpty. Operand 21946 states and 62721 transitions. [2022-01-18 11:14:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:08,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:08,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:08,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 11:14:08,208 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:08,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:08,208 INFO L85 PathProgramCache]: Analyzing trace with hash 516494899, now seen corresponding path program 13 times [2022-01-18 11:14:08,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:08,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218504729] [2022-01-18 11:14:08,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:08,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:08,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:08,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218504729] [2022-01-18 11:14:08,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218504729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:08,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:08,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:08,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122013730] [2022-01-18 11:14:08,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:08,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:08,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:08,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:08,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:08,608 INFO L87 Difference]: Start difference. First operand 21946 states and 62721 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:10,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:10,363 INFO L93 Difference]: Finished difference Result 59163 states and 166369 transitions. [2022-01-18 11:14:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:14:10,364 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:10,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:10,489 INFO L225 Difference]: With dead ends: 59163 [2022-01-18 11:14:10,489 INFO L226 Difference]: Without dead ends: 59163 [2022-01-18 11:14:10,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=746, Invalid=2914, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:14:10,490 INFO L933 BasicCegarLoop]: 962 mSDtfsCounter, 3836 mSDsluCounter, 11427 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3836 SdHoareTripleChecker+Valid, 12232 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:10,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3836 Valid, 12232 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2332 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:10,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59163 states. [2022-01-18 11:14:11,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59163 to 22687. [2022-01-18 11:14:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22687 states, 22686 states have (on average 2.8696112139645598) internal successors, (65100), 22686 states have internal predecessors, (65100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:11,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22687 states to 22687 states and 65100 transitions. [2022-01-18 11:14:11,177 INFO L78 Accepts]: Start accepts. Automaton has 22687 states and 65100 transitions. Word has length 263 [2022-01-18 11:14:11,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:11,177 INFO L470 AbstractCegarLoop]: Abstraction has 22687 states and 65100 transitions. [2022-01-18 11:14:11,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:11,177 INFO L276 IsEmpty]: Start isEmpty. Operand 22687 states and 65100 transitions. [2022-01-18 11:14:11,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:11,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:11,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:11,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 11:14:11,208 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:11,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:11,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1468464731, now seen corresponding path program 14 times [2022-01-18 11:14:11,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:11,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327313027] [2022-01-18 11:14:11,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:11,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:11,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:11,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:11,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327313027] [2022-01-18 11:14:11,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327313027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:11,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:11,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:11,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660718279] [2022-01-18 11:14:11,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:11,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:11,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:11,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:11,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:11,552 INFO L87 Difference]: Start difference. First operand 22687 states and 65100 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:13,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:13,435 INFO L93 Difference]: Finished difference Result 60174 states and 169473 transitions. [2022-01-18 11:14:13,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:14:13,436 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:13,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:13,564 INFO L225 Difference]: With dead ends: 60174 [2022-01-18 11:14:13,564 INFO L226 Difference]: Without dead ends: 60174 [2022-01-18 11:14:13,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=878, Invalid=3412, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:14:13,566 INFO L933 BasicCegarLoop]: 1055 mSDtfsCounter, 3450 mSDsluCounter, 12508 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3450 SdHoareTripleChecker+Valid, 13425 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:13,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3450 Valid, 13425 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2401 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60174 states. [2022-01-18 11:14:14,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60174 to 22299. [2022-01-18 11:14:14,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22299 states, 22298 states have (on average 2.8582384070320206) internal successors, (63733), 22298 states have internal predecessors, (63733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22299 states to 22299 states and 63733 transitions. [2022-01-18 11:14:14,186 INFO L78 Accepts]: Start accepts. Automaton has 22299 states and 63733 transitions. Word has length 263 [2022-01-18 11:14:14,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:14,187 INFO L470 AbstractCegarLoop]: Abstraction has 22299 states and 63733 transitions. [2022-01-18 11:14:14,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:14,187 INFO L276 IsEmpty]: Start isEmpty. Operand 22299 states and 63733 transitions. [2022-01-18 11:14:14,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:14,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:14,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:14,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 11:14:14,223 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:14,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:14,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1582060183, now seen corresponding path program 15 times [2022-01-18 11:14:14,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:14,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425105662] [2022-01-18 11:14:14,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:14,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:14,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:14,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425105662] [2022-01-18 11:14:14,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425105662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:14,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:14,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:14,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785330016] [2022-01-18 11:14:14,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:14,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:14,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:14,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:14,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:14,627 INFO L87 Difference]: Start difference. First operand 22299 states and 63733 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:16,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:16,141 INFO L93 Difference]: Finished difference Result 44016 states and 123785 transitions. [2022-01-18 11:14:16,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:14:16,143 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:16,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:16,218 INFO L225 Difference]: With dead ends: 44016 [2022-01-18 11:14:16,219 INFO L226 Difference]: Without dead ends: 44016 [2022-01-18 11:14:16,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=725, Invalid=2935, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:14:16,220 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 2999 mSDsluCounter, 11740 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2999 SdHoareTripleChecker+Valid, 12513 SdHoareTripleChecker+Invalid, 2311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:16,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2999 Valid, 12513 Invalid, 2311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:14:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44016 states. [2022-01-18 11:14:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44016 to 22299. [2022-01-18 11:14:16,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22299 states, 22298 states have (on average 2.8582384070320206) internal successors, (63733), 22298 states have internal predecessors, (63733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:16,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22299 states to 22299 states and 63733 transitions. [2022-01-18 11:14:16,903 INFO L78 Accepts]: Start accepts. Automaton has 22299 states and 63733 transitions. Word has length 263 [2022-01-18 11:14:16,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:16,903 INFO L470 AbstractCegarLoop]: Abstraction has 22299 states and 63733 transitions. [2022-01-18 11:14:16,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:16,903 INFO L276 IsEmpty]: Start isEmpty. Operand 22299 states and 63733 transitions. [2022-01-18 11:14:16,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:16,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:16,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:16,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 11:14:16,933 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:16,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:16,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1622312059, now seen corresponding path program 16 times [2022-01-18 11:14:16,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:16,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030607025] [2022-01-18 11:14:16,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:16,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:17,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:17,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030607025] [2022-01-18 11:14:17,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030607025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:17,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:17,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:17,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273731460] [2022-01-18 11:14:17,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:17,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:17,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:17,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:17,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:17,298 INFO L87 Difference]: Start difference. First operand 22299 states and 63733 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:18,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:18,800 INFO L93 Difference]: Finished difference Result 47408 states and 132677 transitions. [2022-01-18 11:14:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:14:18,800 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:18,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:18,884 INFO L225 Difference]: With dead ends: 47408 [2022-01-18 11:14:18,884 INFO L226 Difference]: Without dead ends: 47408 [2022-01-18 11:14:18,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=724, Invalid=2936, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:14:18,886 INFO L933 BasicCegarLoop]: 946 mSDtfsCounter, 2999 mSDsluCounter, 11270 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2999 SdHoareTripleChecker+Valid, 12078 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:18,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2999 Valid, 12078 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:14:18,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47408 states. [2022-01-18 11:14:19,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47408 to 22425. [2022-01-18 11:14:19,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22425 states, 22424 states have (on average 2.85707277916518) internal successors, (64067), 22424 states have internal predecessors, (64067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:19,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22425 states to 22425 states and 64067 transitions. [2022-01-18 11:14:19,485 INFO L78 Accepts]: Start accepts. Automaton has 22425 states and 64067 transitions. Word has length 263 [2022-01-18 11:14:19,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:19,485 INFO L470 AbstractCegarLoop]: Abstraction has 22425 states and 64067 transitions. [2022-01-18 11:14:19,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:19,485 INFO L276 IsEmpty]: Start isEmpty. Operand 22425 states and 64067 transitions. [2022-01-18 11:14:19,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:19,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:19,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:19,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 11:14:19,521 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:19,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:19,521 INFO L85 PathProgramCache]: Analyzing trace with hash 910147669, now seen corresponding path program 17 times [2022-01-18 11:14:19,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:19,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180615519] [2022-01-18 11:14:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:19,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:19,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:19,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:19,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180615519] [2022-01-18 11:14:19,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180615519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:19,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:19,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:19,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919848653] [2022-01-18 11:14:19,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:19,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:19,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:19,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:19,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:19,901 INFO L87 Difference]: Start difference. First operand 22425 states and 64067 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:21,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:21,663 INFO L93 Difference]: Finished difference Result 44227 states and 124646 transitions. [2022-01-18 11:14:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:14:21,664 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:21,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:21,741 INFO L225 Difference]: With dead ends: 44227 [2022-01-18 11:14:21,741 INFO L226 Difference]: Without dead ends: 44227 [2022-01-18 11:14:21,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=808, Invalid=3224, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:14:21,743 INFO L933 BasicCegarLoop]: 951 mSDtfsCounter, 3307 mSDsluCounter, 12376 mSDsCounter, 0 mSdLazyCounter, 2469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3307 SdHoareTripleChecker+Valid, 13140 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:21,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3307 Valid, 13140 Invalid, 2505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2469 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:21,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44227 states. [2022-01-18 11:14:22,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44227 to 23028. [2022-01-18 11:14:22,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23028 states, 23027 states have (on average 2.8698050115082294) internal successors, (66083), 23027 states have internal predecessors, (66083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:22,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23028 states to 23028 states and 66083 transitions. [2022-01-18 11:14:22,338 INFO L78 Accepts]: Start accepts. Automaton has 23028 states and 66083 transitions. Word has length 263 [2022-01-18 11:14:22,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:22,339 INFO L470 AbstractCegarLoop]: Abstraction has 23028 states and 66083 transitions. [2022-01-18 11:14:22,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:22,339 INFO L276 IsEmpty]: Start isEmpty. Operand 23028 states and 66083 transitions. [2022-01-18 11:14:22,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:22,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:22,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:22,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 11:14:22,371 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:22,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:22,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1862117501, now seen corresponding path program 18 times [2022-01-18 11:14:22,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:22,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072216284] [2022-01-18 11:14:22,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:22,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:22,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:22,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:22,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072216284] [2022-01-18 11:14:22,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072216284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:22,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:22,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:22,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226088890] [2022-01-18 11:14:22,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:22,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:22,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:22,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:22,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:22,700 INFO L87 Difference]: Start difference. First operand 23028 states and 66083 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:24,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:24,429 INFO L93 Difference]: Finished difference Result 45336 states and 128065 transitions. [2022-01-18 11:14:24,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:14:24,431 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:24,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:24,506 INFO L225 Difference]: With dead ends: 45336 [2022-01-18 11:14:24,506 INFO L226 Difference]: Without dead ends: 45336 [2022-01-18 11:14:24,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=799, Invalid=3233, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:14:24,507 INFO L933 BasicCegarLoop]: 990 mSDtfsCounter, 3309 mSDsluCounter, 12612 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3309 SdHoareTripleChecker+Valid, 13457 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:24,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3309 Valid, 13457 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:24,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45336 states. [2022-01-18 11:14:24,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45336 to 23028. [2022-01-18 11:14:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23028 states, 23027 states have (on average 2.8698050115082294) internal successors, (66083), 23027 states have internal predecessors, (66083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:24,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23028 states to 23028 states and 66083 transitions. [2022-01-18 11:14:24,935 INFO L78 Accepts]: Start accepts. Automaton has 23028 states and 66083 transitions. Word has length 263 [2022-01-18 11:14:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:24,935 INFO L470 AbstractCegarLoop]: Abstraction has 23028 states and 66083 transitions. [2022-01-18 11:14:24,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:24,935 INFO L276 IsEmpty]: Start isEmpty. Operand 23028 states and 66083 transitions. [2022-01-18 11:14:24,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:24,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:24,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:24,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 11:14:24,967 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:24,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:24,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1188407413, now seen corresponding path program 19 times [2022-01-18 11:14:24,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:24,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439004743] [2022-01-18 11:14:24,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:24,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:25,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:25,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439004743] [2022-01-18 11:14:25,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439004743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:25,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:25,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:25,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760229223] [2022-01-18 11:14:25,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:25,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:25,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:25,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:25,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:25,328 INFO L87 Difference]: Start difference. First operand 23028 states and 66083 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:26,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:26,899 INFO L93 Difference]: Finished difference Result 45633 states and 128924 transitions. [2022-01-18 11:14:26,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:14:26,900 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:26,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:26,992 INFO L225 Difference]: With dead ends: 45633 [2022-01-18 11:14:26,993 INFO L226 Difference]: Without dead ends: 45633 [2022-01-18 11:14:26,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=711, Invalid=2949, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:14:26,993 INFO L933 BasicCegarLoop]: 953 mSDtfsCounter, 3151 mSDsluCounter, 12118 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 12930 SdHoareTripleChecker+Invalid, 2379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:26,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3151 Valid, 12930 Invalid, 2379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:27,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45633 states. [2022-01-18 11:14:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45633 to 23028. [2022-01-18 11:14:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23028 states, 23027 states have (on average 2.8698050115082294) internal successors, (66083), 23027 states have internal predecessors, (66083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23028 states to 23028 states and 66083 transitions. [2022-01-18 11:14:27,468 INFO L78 Accepts]: Start accepts. Automaton has 23028 states and 66083 transitions. Word has length 263 [2022-01-18 11:14:27,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:27,468 INFO L470 AbstractCegarLoop]: Abstraction has 23028 states and 66083 transitions. [2022-01-18 11:14:27,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 23028 states and 66083 transitions. [2022-01-18 11:14:27,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:27,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:27,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:27,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 11:14:27,500 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:27,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:27,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1228659289, now seen corresponding path program 20 times [2022-01-18 11:14:27,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:27,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385623243] [2022-01-18 11:14:27,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:27,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:27,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:27,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:27,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385623243] [2022-01-18 11:14:27,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385623243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:27,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:27,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:27,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356371834] [2022-01-18 11:14:27,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:27,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:27,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:27,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:27,845 INFO L87 Difference]: Start difference. First operand 23028 states and 66083 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:29,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:29,536 INFO L93 Difference]: Finished difference Result 49967 states and 140401 transitions. [2022-01-18 11:14:29,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:14:29,536 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:29,628 INFO L225 Difference]: With dead ends: 49967 [2022-01-18 11:14:29,628 INFO L226 Difference]: Without dead ends: 49967 [2022-01-18 11:14:29,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=738, Invalid=3044, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:14:29,629 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 3105 mSDsluCounter, 12177 mSDsCounter, 0 mSdLazyCounter, 2323 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 13001 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:29,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3105 Valid, 13001 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2323 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:29,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49967 states. [2022-01-18 11:14:30,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49967 to 23028. [2022-01-18 11:14:30,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23028 states, 23027 states have (on average 2.8698050115082294) internal successors, (66083), 23027 states have internal predecessors, (66083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:30,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23028 states to 23028 states and 66083 transitions. [2022-01-18 11:14:30,099 INFO L78 Accepts]: Start accepts. Automaton has 23028 states and 66083 transitions. Word has length 263 [2022-01-18 11:14:30,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:30,099 INFO L470 AbstractCegarLoop]: Abstraction has 23028 states and 66083 transitions. [2022-01-18 11:14:30,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:30,100 INFO L276 IsEmpty]: Start isEmpty. Operand 23028 states and 66083 transitions. [2022-01-18 11:14:30,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:30,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:30,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:30,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 11:14:30,130 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:30,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:30,130 INFO L85 PathProgramCache]: Analyzing trace with hash 505163749, now seen corresponding path program 21 times [2022-01-18 11:14:30,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:30,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313965560] [2022-01-18 11:14:30,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:30,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:30,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:30,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313965560] [2022-01-18 11:14:30,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313965560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:30,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:30,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:14:30,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68951227] [2022-01-18 11:14:30,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:30,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:14:30,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:30,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:14:30,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:14:30,482 INFO L87 Difference]: Start difference. First operand 23028 states and 66083 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:31,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:31,783 INFO L93 Difference]: Finished difference Result 30662 states and 86742 transitions. [2022-01-18 11:14:31,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:14:31,783 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:31,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:31,841 INFO L225 Difference]: With dead ends: 30662 [2022-01-18 11:14:31,841 INFO L226 Difference]: Without dead ends: 30662 [2022-01-18 11:14:31,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=597, Invalid=2595, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:14:31,842 INFO L933 BasicCegarLoop]: 808 mSDtfsCounter, 2693 mSDsluCounter, 10573 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 11240 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:31,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2693 Valid, 11240 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:14:31,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30662 states. [2022-01-18 11:14:32,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30662 to 23091. [2022-01-18 11:14:32,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23091 states, 23090 states have (on average 2.86920744911217) internal successors, (66250), 23090 states have internal predecessors, (66250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:32,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23091 states to 23091 states and 66250 transitions. [2022-01-18 11:14:32,331 INFO L78 Accepts]: Start accepts. Automaton has 23091 states and 66250 transitions. Word has length 263 [2022-01-18 11:14:32,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:32,331 INFO L470 AbstractCegarLoop]: Abstraction has 23091 states and 66250 transitions. [2022-01-18 11:14:32,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:32,332 INFO L276 IsEmpty]: Start isEmpty. Operand 23091 states and 66250 transitions. [2022-01-18 11:14:32,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:32,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:32,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:32,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 11:14:32,363 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:32,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:32,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2072027193, now seen corresponding path program 22 times [2022-01-18 11:14:32,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:32,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721216639] [2022-01-18 11:14:32,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:32,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:32,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:32,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:32,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721216639] [2022-01-18 11:14:32,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721216639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:32,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:32,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:32,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454188107] [2022-01-18 11:14:32,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:32,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:32,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:32,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:32,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:32,596 INFO L87 Difference]: Start difference. First operand 23091 states and 66250 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:33,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:33,940 INFO L93 Difference]: Finished difference Result 61463 states and 173439 transitions. [2022-01-18 11:14:33,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:14:33,941 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:33,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:34,052 INFO L225 Difference]: With dead ends: 61463 [2022-01-18 11:14:34,052 INFO L226 Difference]: Without dead ends: 61463 [2022-01-18 11:14:34,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=655, Invalid=2315, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:14:34,053 INFO L933 BasicCegarLoop]: 955 mSDtfsCounter, 2634 mSDsluCounter, 8704 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2634 SdHoareTripleChecker+Valid, 9518 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:34,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2634 Valid, 9518 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:34,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61463 states. [2022-01-18 11:14:34,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61463 to 23487. [2022-01-18 11:14:34,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23487 states, 23486 states have (on average 2.8801413608106956) internal successors, (67643), 23486 states have internal predecessors, (67643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:34,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23487 states to 23487 states and 67643 transitions. [2022-01-18 11:14:34,801 INFO L78 Accepts]: Start accepts. Automaton has 23487 states and 67643 transitions. Word has length 263 [2022-01-18 11:14:34,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:34,801 INFO L470 AbstractCegarLoop]: Abstraction has 23487 states and 67643 transitions. [2022-01-18 11:14:34,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:34,801 INFO L276 IsEmpty]: Start isEmpty. Operand 23487 states and 67643 transitions. [2022-01-18 11:14:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:34,831 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:34,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:34,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 11:14:34,832 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:34,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:34,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1120057361, now seen corresponding path program 23 times [2022-01-18 11:14:34,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:34,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775522698] [2022-01-18 11:14:34,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:34,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:35,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:35,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775522698] [2022-01-18 11:14:35,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775522698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:35,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:35,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:35,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449496553] [2022-01-18 11:14:35,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:35,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:35,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:35,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:35,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:35,011 INFO L87 Difference]: Start difference. First operand 23487 states and 67643 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:36,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:36,358 INFO L93 Difference]: Finished difference Result 62021 states and 175333 transitions. [2022-01-18 11:14:36,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:14:36,359 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:36,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:36,479 INFO L225 Difference]: With dead ends: 62021 [2022-01-18 11:14:36,479 INFO L226 Difference]: Without dead ends: 62021 [2022-01-18 11:14:36,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=647, Invalid=2323, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:14:36,480 INFO L933 BasicCegarLoop]: 970 mSDtfsCounter, 2649 mSDsluCounter, 9079 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2649 SdHoareTripleChecker+Valid, 9942 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:36,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2649 Valid, 9942 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:36,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62021 states. [2022-01-18 11:14:37,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62021 to 23159. [2022-01-18 11:14:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23159 states, 23158 states have (on average 2.8693755937473013) internal successors, (66449), 23158 states have internal predecessors, (66449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23159 states to 23159 states and 66449 transitions. [2022-01-18 11:14:37,173 INFO L78 Accepts]: Start accepts. Automaton has 23159 states and 66449 transitions. Word has length 263 [2022-01-18 11:14:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:37,173 INFO L470 AbstractCegarLoop]: Abstraction has 23159 states and 66449 transitions. [2022-01-18 11:14:37,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:37,173 INFO L276 IsEmpty]: Start isEmpty. Operand 23159 states and 66449 transitions. [2022-01-18 11:14:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:37,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:37,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:37,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 11:14:37,205 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:37,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:37,206 INFO L85 PathProgramCache]: Analyzing trace with hash 124385021, now seen corresponding path program 24 times [2022-01-18 11:14:37,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:37,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126400525] [2022-01-18 11:14:37,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:37,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:37,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:37,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126400525] [2022-01-18 11:14:37,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126400525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:37,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:37,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:37,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601756984] [2022-01-18 11:14:37,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:37,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:37,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:37,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:37,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:37,412 INFO L87 Difference]: Start difference. First operand 23159 states and 66449 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:38,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:38,768 INFO L93 Difference]: Finished difference Result 46565 states and 131807 transitions. [2022-01-18 11:14:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:14:38,769 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:38,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:38,866 INFO L225 Difference]: With dead ends: 46565 [2022-01-18 11:14:38,866 INFO L226 Difference]: Without dead ends: 46565 [2022-01-18 11:14:38,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=576, Invalid=2076, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:14:38,867 INFO L933 BasicCegarLoop]: 818 mSDtfsCounter, 2385 mSDsluCounter, 7473 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 8199 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:38,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2385 Valid, 8199 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:14:38,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46565 states. [2022-01-18 11:14:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46565 to 23127. [2022-01-18 11:14:39,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23127 states, 23126 states have (on average 2.869021880134913) internal successors, (66349), 23126 states have internal predecessors, (66349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:39,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23127 states to 23127 states and 66349 transitions. [2022-01-18 11:14:39,465 INFO L78 Accepts]: Start accepts. Automaton has 23127 states and 66349 transitions. Word has length 263 [2022-01-18 11:14:39,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:39,466 INFO L470 AbstractCegarLoop]: Abstraction has 23127 states and 66349 transitions. [2022-01-18 11:14:39,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:39,466 INFO L276 IsEmpty]: Start isEmpty. Operand 23127 states and 66349 transitions. [2022-01-18 11:14:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:39,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:39,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:39,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 11:14:39,502 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:39,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:39,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1348499641, now seen corresponding path program 25 times [2022-01-18 11:14:39,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:39,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239642478] [2022-01-18 11:14:39,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:39,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:39,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:39,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239642478] [2022-01-18 11:14:39,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239642478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:39,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:39,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:39,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278952968] [2022-01-18 11:14:39,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:39,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:39,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:39,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:39,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:39,722 INFO L87 Difference]: Start difference. First operand 23127 states and 66349 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:41,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:41,117 INFO L93 Difference]: Finished difference Result 61666 states and 174016 transitions. [2022-01-18 11:14:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:14:41,118 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:41,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:41,235 INFO L225 Difference]: With dead ends: 61666 [2022-01-18 11:14:41,235 INFO L226 Difference]: Without dead ends: 61666 [2022-01-18 11:14:41,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=671, Invalid=2409, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:14:41,236 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 2862 mSDsluCounter, 8587 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2862 SdHoareTripleChecker+Valid, 9399 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:41,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2862 Valid, 9399 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:41,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61666 states. [2022-01-18 11:14:41,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61666 to 23487. [2022-01-18 11:14:41,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23487 states, 23486 states have (on average 2.8801413608106956) internal successors, (67643), 23486 states have internal predecessors, (67643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:41,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23487 states to 23487 states and 67643 transitions. [2022-01-18 11:14:41,866 INFO L78 Accepts]: Start accepts. Automaton has 23487 states and 67643 transitions. Word has length 263 [2022-01-18 11:14:41,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:41,866 INFO L470 AbstractCegarLoop]: Abstraction has 23487 states and 67643 transitions. [2022-01-18 11:14:41,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:41,866 INFO L276 IsEmpty]: Start isEmpty. Operand 23487 states and 67643 transitions. [2022-01-18 11:14:41,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:41,897 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:41,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:41,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 11:14:41,898 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:41,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:41,898 INFO L85 PathProgramCache]: Analyzing trace with hash -396529809, now seen corresponding path program 26 times [2022-01-18 11:14:41,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:41,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293725239] [2022-01-18 11:14:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:41,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:42,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:42,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:42,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293725239] [2022-01-18 11:14:42,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293725239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:42,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:42,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:42,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931628508] [2022-01-18 11:14:42,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:42,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:42,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:42,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:42,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:42,074 INFO L87 Difference]: Start difference. First operand 23487 states and 67643 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:43,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:43,458 INFO L93 Difference]: Finished difference Result 62027 states and 175346 transitions. [2022-01-18 11:14:43,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:14:43,458 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:43,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:43,577 INFO L225 Difference]: With dead ends: 62027 [2022-01-18 11:14:43,577 INFO L226 Difference]: Without dead ends: 62027 [2022-01-18 11:14:43,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=714, Invalid=2592, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:14:43,578 INFO L933 BasicCegarLoop]: 933 mSDtfsCounter, 2930 mSDsluCounter, 8324 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2930 SdHoareTripleChecker+Valid, 9172 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:43,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2930 Valid, 9172 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1699 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:43,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62027 states. [2022-01-18 11:14:44,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62027 to 23227. [2022-01-18 11:14:44,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23227 states, 23226 states have (on average 2.869026091449238) internal successors, (66636), 23226 states have internal predecessors, (66636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:44,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23227 states to 23227 states and 66636 transitions. [2022-01-18 11:14:44,169 INFO L78 Accepts]: Start accepts. Automaton has 23227 states and 66636 transitions. Word has length 263 [2022-01-18 11:14:44,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:44,169 INFO L470 AbstractCegarLoop]: Abstraction has 23227 states and 66636 transitions. [2022-01-18 11:14:44,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand 23227 states and 66636 transitions. [2022-01-18 11:14:44,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:44,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:44,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:44,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 11:14:44,201 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:44,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:44,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1091014739, now seen corresponding path program 27 times [2022-01-18 11:14:44,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:44,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594391855] [2022-01-18 11:14:44,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:44,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:44,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:44,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594391855] [2022-01-18 11:14:44,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594391855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:44,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:44,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:44,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323761990] [2022-01-18 11:14:44,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:44,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:44,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:44,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:44,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:44,402 INFO L87 Difference]: Start difference. First operand 23227 states and 66636 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:45,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:45,480 INFO L93 Difference]: Finished difference Result 46878 states and 132543 transitions. [2022-01-18 11:14:45,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:14:45,480 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:45,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:45,558 INFO L225 Difference]: With dead ends: 46878 [2022-01-18 11:14:45,558 INFO L226 Difference]: Without dead ends: 46878 [2022-01-18 11:14:45,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=552, Invalid=1998, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:14:45,559 INFO L933 BasicCegarLoop]: 837 mSDtfsCounter, 2687 mSDsluCounter, 7551 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2687 SdHoareTripleChecker+Valid, 8270 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:45,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2687 Valid, 8270 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:14:45,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46878 states. [2022-01-18 11:14:46,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46878 to 23287. [2022-01-18 11:14:46,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23287 states, 23286 states have (on average 2.8685476251825133) internal successors, (66797), 23286 states have internal predecessors, (66797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:46,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23287 states to 23287 states and 66797 transitions. [2022-01-18 11:14:46,118 INFO L78 Accepts]: Start accepts. Automaton has 23287 states and 66797 transitions. Word has length 263 [2022-01-18 11:14:46,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:46,118 INFO L470 AbstractCegarLoop]: Abstraction has 23287 states and 66797 transitions. [2022-01-18 11:14:46,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:46,119 INFO L276 IsEmpty]: Start isEmpty. Operand 23287 states and 66797 transitions. [2022-01-18 11:14:46,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:46,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:46,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:46,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 11:14:46,149 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:46,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:46,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1030218473, now seen corresponding path program 28 times [2022-01-18 11:14:46,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:46,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377628096] [2022-01-18 11:14:46,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:46,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:46,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:46,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377628096] [2022-01-18 11:14:46,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377628096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:46,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:46,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:46,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349474684] [2022-01-18 11:14:46,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:46,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:46,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:46,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:46,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:46,345 INFO L87 Difference]: Start difference. First operand 23287 states and 66797 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:47,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:47,966 INFO L93 Difference]: Finished difference Result 61486 states and 173525 transitions. [2022-01-18 11:14:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:14:47,966 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:47,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:48,090 INFO L225 Difference]: With dead ends: 61486 [2022-01-18 11:14:48,090 INFO L226 Difference]: Without dead ends: 61486 [2022-01-18 11:14:48,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=812, Invalid=2848, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:14:48,091 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 3355 mSDsluCounter, 8927 mSDsCounter, 0 mSdLazyCounter, 1926 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3355 SdHoareTripleChecker+Valid, 9781 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:48,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3355 Valid, 9781 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1926 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:14:48,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61486 states. [2022-01-18 11:14:48,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61486 to 23719. [2022-01-18 11:14:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23719 states, 23718 states have (on average 2.880554852854372) internal successors, (68321), 23718 states have internal predecessors, (68321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23719 states to 23719 states and 68321 transitions. [2022-01-18 11:14:48,818 INFO L78 Accepts]: Start accepts. Automaton has 23719 states and 68321 transitions. Word has length 263 [2022-01-18 11:14:48,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:48,818 INFO L470 AbstractCegarLoop]: Abstraction has 23719 states and 68321 transitions. [2022-01-18 11:14:48,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 23719 states and 68321 transitions. [2022-01-18 11:14:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:48,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:48,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:48,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 11:14:48,852 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:48,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:48,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1982188305, now seen corresponding path program 29 times [2022-01-18 11:14:48,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:48,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815571480] [2022-01-18 11:14:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:48,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:49,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:49,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:49,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815571480] [2022-01-18 11:14:49,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815571480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:49,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:49,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:49,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740178110] [2022-01-18 11:14:49,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:49,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:49,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:49,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:49,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:49,029 INFO L87 Difference]: Start difference. First operand 23719 states and 68321 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:50,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:50,381 INFO L93 Difference]: Finished difference Result 61847 states and 174855 transitions. [2022-01-18 11:14:50,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:14:50,381 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:50,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:50,499 INFO L225 Difference]: With dead ends: 61847 [2022-01-18 11:14:50,500 INFO L226 Difference]: Without dead ends: 61847 [2022-01-18 11:14:50,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=809, Invalid=2851, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:14:50,501 INFO L933 BasicCegarLoop]: 980 mSDtfsCounter, 3414 mSDsluCounter, 8419 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3414 SdHoareTripleChecker+Valid, 9301 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:50,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3414 Valid, 9301 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:50,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61847 states. [2022-01-18 11:14:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61847 to 23519. [2022-01-18 11:14:51,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23519 states, 23518 states have (on average 2.868908920826601) internal successors, (67471), 23518 states have internal predecessors, (67471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:51,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23519 states to 23519 states and 67471 transitions. [2022-01-18 11:14:51,234 INFO L78 Accepts]: Start accepts. Automaton has 23519 states and 67471 transitions. Word has length 263 [2022-01-18 11:14:51,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:51,234 INFO L470 AbstractCegarLoop]: Abstraction has 23519 states and 67471 transitions. [2022-01-18 11:14:51,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:51,234 INFO L276 IsEmpty]: Start isEmpty. Operand 23519 states and 67471 transitions. [2022-01-18 11:14:51,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:51,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:51,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:51,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 11:14:51,266 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:51,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:51,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1287703375, now seen corresponding path program 30 times [2022-01-18 11:14:51,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:51,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954198510] [2022-01-18 11:14:51,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:51,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:51,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:51,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954198510] [2022-01-18 11:14:51,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954198510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:51,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:51,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:51,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286603728] [2022-01-18 11:14:51,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:51,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:51,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:51,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:51,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:51,470 INFO L87 Difference]: Start difference. First operand 23519 states and 67471 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:52,764 INFO L93 Difference]: Finished difference Result 47154 states and 133302 transitions. [2022-01-18 11:14:52,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:14:52,765 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:52,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:52,856 INFO L225 Difference]: With dead ends: 47154 [2022-01-18 11:14:52,856 INFO L226 Difference]: Without dead ends: 47154 [2022-01-18 11:14:52,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=679, Invalid=2401, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:14:52,857 INFO L933 BasicCegarLoop]: 902 mSDtfsCounter, 2512 mSDsluCounter, 8277 mSDsCounter, 0 mSdLazyCounter, 1713 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2512 SdHoareTripleChecker+Valid, 9038 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:52,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2512 Valid, 9038 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1713 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:52,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47154 states. [2022-01-18 11:14:53,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47154 to 23487. [2022-01-18 11:14:53,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23487 states, 23486 states have (on average 2.868559993187431) internal successors, (67371), 23486 states have internal predecessors, (67371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23487 states to 23487 states and 67371 transitions. [2022-01-18 11:14:53,387 INFO L78 Accepts]: Start accepts. Automaton has 23487 states and 67371 transitions. Word has length 263 [2022-01-18 11:14:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:53,388 INFO L470 AbstractCegarLoop]: Abstraction has 23487 states and 67371 transitions. [2022-01-18 11:14:53,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 23487 states and 67371 transitions. [2022-01-18 11:14:53,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:53,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:53,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:53,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 11:14:53,421 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:53,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:53,421 INFO L85 PathProgramCache]: Analyzing trace with hash 682309739, now seen corresponding path program 31 times [2022-01-18 11:14:53,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:53,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144021258] [2022-01-18 11:14:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:53,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:53,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:53,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:53,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144021258] [2022-01-18 11:14:53,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144021258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:53,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:53,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:53,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628091166] [2022-01-18 11:14:53,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:53,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:53,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:53,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:53,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:53,594 INFO L87 Difference]: Start difference. First operand 23487 states and 67371 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:54,892 INFO L93 Difference]: Finished difference Result 51108 states and 143923 transitions. [2022-01-18 11:14:54,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:14:54,892 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:54,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:54,986 INFO L225 Difference]: With dead ends: 51108 [2022-01-18 11:14:54,986 INFO L226 Difference]: Without dead ends: 51108 [2022-01-18 11:14:54,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=707, Invalid=2485, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:14:54,987 INFO L933 BasicCegarLoop]: 931 mSDtfsCounter, 2750 mSDsluCounter, 8439 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 9213 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:54,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2750 Valid, 9213 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:55,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51108 states. [2022-01-18 11:14:55,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51108 to 23607. [2022-01-18 11:14:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23607 states, 23606 states have (on average 2.8676184021011606) internal successors, (67693), 23606 states have internal predecessors, (67693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23607 states to 23607 states and 67693 transitions. [2022-01-18 11:14:55,526 INFO L78 Accepts]: Start accepts. Automaton has 23607 states and 67693 transitions. Word has length 263 [2022-01-18 11:14:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:55,527 INFO L470 AbstractCegarLoop]: Abstraction has 23607 states and 67693 transitions. [2022-01-18 11:14:55,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:55,527 INFO L276 IsEmpty]: Start isEmpty. Operand 23607 states and 67693 transitions. [2022-01-18 11:14:55,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:55,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:55,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:55,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 11:14:55,560 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:55,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:55,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1597302713, now seen corresponding path program 32 times [2022-01-18 11:14:55,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:55,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644590289] [2022-01-18 11:14:55,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:55,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:55,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:55,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:55,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644590289] [2022-01-18 11:14:55,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644590289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:55,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:55,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:55,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439315697] [2022-01-18 11:14:55,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:55,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:55,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:55,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:55,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:55,768 INFO L87 Difference]: Start difference. First operand 23607 states and 67693 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:57,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:57,155 INFO L93 Difference]: Finished difference Result 62463 states and 176213 transitions. [2022-01-18 11:14:57,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:14:57,156 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:57,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:57,280 INFO L225 Difference]: With dead ends: 62463 [2022-01-18 11:14:57,280 INFO L226 Difference]: Without dead ends: 62463 [2022-01-18 11:14:57,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=674, Invalid=2406, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:14:57,281 INFO L933 BasicCegarLoop]: 941 mSDtfsCounter, 2900 mSDsluCounter, 8164 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2900 SdHoareTripleChecker+Valid, 8979 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:57,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2900 Valid, 8979 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:57,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62463 states. [2022-01-18 11:14:57,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62463 to 23979. [2022-01-18 11:14:57,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23979 states, 23978 states have (on average 2.8784719326048878) internal successors, (69020), 23978 states have internal predecessors, (69020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23979 states to 23979 states and 69020 transitions. [2022-01-18 11:14:57,952 INFO L78 Accepts]: Start accepts. Automaton has 23979 states and 69020 transitions. Word has length 263 [2022-01-18 11:14:57,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:57,952 INFO L470 AbstractCegarLoop]: Abstraction has 23979 states and 69020 transitions. [2022-01-18 11:14:57,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand 23979 states and 69020 transitions. [2022-01-18 11:14:57,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:14:57,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:57,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:57,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 11:14:57,987 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:57,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:57,987 INFO L85 PathProgramCache]: Analyzing trace with hash -645332881, now seen corresponding path program 33 times [2022-01-18 11:14:57,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:57,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251713360] [2022-01-18 11:14:57,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:57,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:58,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:58,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251713360] [2022-01-18 11:14:58,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251713360] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:58,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:58,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:14:58,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298563213] [2022-01-18 11:14:58,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:58,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:14:58,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:14:58,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:14:58,188 INFO L87 Difference]: Start difference. First operand 23979 states and 69020 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:59,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:59,548 INFO L93 Difference]: Finished difference Result 63021 states and 178107 transitions. [2022-01-18 11:14:59,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:14:59,548 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:14:59,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:59,661 INFO L225 Difference]: With dead ends: 63021 [2022-01-18 11:14:59,661 INFO L226 Difference]: Without dead ends: 63021 [2022-01-18 11:14:59,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=717, Invalid=2589, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:14:59,662 INFO L933 BasicCegarLoop]: 989 mSDtfsCounter, 2937 mSDsluCounter, 8994 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2937 SdHoareTripleChecker+Valid, 9881 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:59,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2937 Valid, 9881 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1784 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:14:59,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63021 states. [2022-01-18 11:15:00,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63021 to 23651. [2022-01-18 11:15:00,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23651 states, 23650 states have (on average 2.867906976744186) internal successors, (67826), 23650 states have internal predecessors, (67826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23651 states to 23651 states and 67826 transitions. [2022-01-18 11:15:00,308 INFO L78 Accepts]: Start accepts. Automaton has 23651 states and 67826 transitions. Word has length 263 [2022-01-18 11:15:00,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:00,308 INFO L470 AbstractCegarLoop]: Abstraction has 23651 states and 67826 transitions. [2022-01-18 11:15:00,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand 23651 states and 67826 transitions. [2022-01-18 11:15:00,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:00,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:00,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:00,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 11:15:00,341 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:00,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:00,342 INFO L85 PathProgramCache]: Analyzing trace with hash 599109501, now seen corresponding path program 34 times [2022-01-18 11:15:00,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:00,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443246694] [2022-01-18 11:15:00,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:00,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:00,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:00,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443246694] [2022-01-18 11:15:00,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443246694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:00,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:00,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:00,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438172880] [2022-01-18 11:15:00,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:00,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:00,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:00,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:00,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:00,529 INFO L87 Difference]: Start difference. First operand 23651 states and 67826 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:01,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:01,622 INFO L93 Difference]: Finished difference Result 47565 states and 134581 transitions. [2022-01-18 11:15:01,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:15:01,622 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:01,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:01,716 INFO L225 Difference]: With dead ends: 47565 [2022-01-18 11:15:01,717 INFO L226 Difference]: Without dead ends: 47565 [2022-01-18 11:15:01,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=596, Invalid=2160, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:15:01,717 INFO L933 BasicCegarLoop]: 835 mSDtfsCounter, 2425 mSDsluCounter, 7371 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 8118 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:01,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2425 Valid, 8118 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:01,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47565 states. [2022-01-18 11:15:02,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47565 to 23619. [2022-01-18 11:15:02,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23619 states, 23618 states have (on average 2.867558641713947) internal successors, (67726), 23618 states have internal predecessors, (67726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:02,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23619 states to 23619 states and 67726 transitions. [2022-01-18 11:15:02,262 INFO L78 Accepts]: Start accepts. Automaton has 23619 states and 67726 transitions. Word has length 263 [2022-01-18 11:15:02,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:02,263 INFO L470 AbstractCegarLoop]: Abstraction has 23619 states and 67726 transitions. [2022-01-18 11:15:02,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:02,263 INFO L276 IsEmpty]: Start isEmpty. Operand 23619 states and 67726 transitions. [2022-01-18 11:15:02,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:02,294 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:02,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:02,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 11:15:02,294 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:02,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:02,295 INFO L85 PathProgramCache]: Analyzing trace with hash -873775161, now seen corresponding path program 35 times [2022-01-18 11:15:02,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:02,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418127973] [2022-01-18 11:15:02,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:02,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:02,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:02,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418127973] [2022-01-18 11:15:02,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418127973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:02,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:02,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:02,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500126352] [2022-01-18 11:15:02,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:02,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:02,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:02,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:02,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:02,478 INFO L87 Difference]: Start difference. First operand 23619 states and 67726 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:03,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:03,795 INFO L93 Difference]: Finished difference Result 62618 states and 176642 transitions. [2022-01-18 11:15:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:15:03,796 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:03,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:03,909 INFO L225 Difference]: With dead ends: 62618 [2022-01-18 11:15:03,909 INFO L226 Difference]: Without dead ends: 62618 [2022-01-18 11:15:03,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=609, Invalid=2147, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:15:03,910 INFO L933 BasicCegarLoop]: 923 mSDtfsCounter, 2988 mSDsluCounter, 7949 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 8759 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:03,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2988 Valid, 8759 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:03,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62618 states. [2022-01-18 11:15:04,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62618 to 23979. [2022-01-18 11:15:04,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23979 states, 23978 states have (on average 2.8784719326048878) internal successors, (69020), 23978 states have internal predecessors, (69020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:04,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23979 states to 23979 states and 69020 transitions. [2022-01-18 11:15:04,518 INFO L78 Accepts]: Start accepts. Automaton has 23979 states and 69020 transitions. Word has length 263 [2022-01-18 11:15:04,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:04,518 INFO L470 AbstractCegarLoop]: Abstraction has 23979 states and 69020 transitions. [2022-01-18 11:15:04,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:04,518 INFO L276 IsEmpty]: Start isEmpty. Operand 23979 states and 69020 transitions. [2022-01-18 11:15:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:04,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:04,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:04,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 11:15:04,550 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:04,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:04,551 INFO L85 PathProgramCache]: Analyzing trace with hash 78194671, now seen corresponding path program 36 times [2022-01-18 11:15:04,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:04,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490484169] [2022-01-18 11:15:04,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:04,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:04,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:04,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:04,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490484169] [2022-01-18 11:15:04,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490484169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:04,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:04,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:04,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386582919] [2022-01-18 11:15:04,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:04,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:04,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:04,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:04,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:04,740 INFO L87 Difference]: Start difference. First operand 23979 states and 69020 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:06,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:06,144 INFO L93 Difference]: Finished difference Result 62919 states and 177811 transitions. [2022-01-18 11:15:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:15:06,144 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:06,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:06,269 INFO L225 Difference]: With dead ends: 62919 [2022-01-18 11:15:06,269 INFO L226 Difference]: Without dead ends: 62919 [2022-01-18 11:15:06,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=701, Invalid=2491, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:15:06,269 INFO L933 BasicCegarLoop]: 950 mSDtfsCounter, 2848 mSDsluCounter, 8736 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2848 SdHoareTripleChecker+Valid, 9603 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:06,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2848 Valid, 9603 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:06,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62919 states. [2022-01-18 11:15:06,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62919 to 23651. [2022-01-18 11:15:06,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23651 states, 23650 states have (on average 2.867906976744186) internal successors, (67826), 23650 states have internal predecessors, (67826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:06,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23651 states to 23651 states and 67826 transitions. [2022-01-18 11:15:06,910 INFO L78 Accepts]: Start accepts. Automaton has 23651 states and 67826 transitions. Word has length 263 [2022-01-18 11:15:06,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:06,911 INFO L470 AbstractCegarLoop]: Abstraction has 23651 states and 67826 transitions. [2022-01-18 11:15:06,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:06,911 INFO L276 IsEmpty]: Start isEmpty. Operand 23651 states and 67826 transitions. [2022-01-18 11:15:06,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:06,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:06,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:06,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 11:15:06,945 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:06,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:06,946 INFO L85 PathProgramCache]: Analyzing trace with hash -616290259, now seen corresponding path program 37 times [2022-01-18 11:15:06,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:06,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827948223] [2022-01-18 11:15:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:06,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:07,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:07,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827948223] [2022-01-18 11:15:07,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827948223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:07,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:07,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:07,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259161201] [2022-01-18 11:15:07,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:07,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:07,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:07,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:07,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:07,141 INFO L87 Difference]: Start difference. First operand 23651 states and 67826 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:08,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:08,245 INFO L93 Difference]: Finished difference Result 47886 states and 135319 transitions. [2022-01-18 11:15:08,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:15:08,246 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:08,333 INFO L225 Difference]: With dead ends: 47886 [2022-01-18 11:15:08,334 INFO L226 Difference]: Without dead ends: 47886 [2022-01-18 11:15:08,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=539, Invalid=1911, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:15:08,334 INFO L933 BasicCegarLoop]: 823 mSDtfsCounter, 2206 mSDsluCounter, 7962 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 8675 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:08,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2206 Valid, 8675 Invalid, 1648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:08,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47886 states. [2022-01-18 11:15:08,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47886 to 23615. [2022-01-18 11:15:08,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23615 states, 23614 states have (on average 2.8675785550944357) internal successors, (67715), 23614 states have internal predecessors, (67715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23615 states to 23615 states and 67715 transitions. [2022-01-18 11:15:08,856 INFO L78 Accepts]: Start accepts. Automaton has 23615 states and 67715 transitions. Word has length 263 [2022-01-18 11:15:08,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:08,856 INFO L470 AbstractCegarLoop]: Abstraction has 23615 states and 67715 transitions. [2022-01-18 11:15:08,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 23615 states and 67715 transitions. [2022-01-18 11:15:08,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:08,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:08,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:08,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 11:15:08,891 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:08,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:08,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1127619863, now seen corresponding path program 38 times [2022-01-18 11:15:08,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:08,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091258338] [2022-01-18 11:15:08,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:08,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:09,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:09,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:09,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091258338] [2022-01-18 11:15:09,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091258338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:09,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:09,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:09,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788077814] [2022-01-18 11:15:09,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:09,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:09,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:09,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:09,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:09,072 INFO L87 Difference]: Start difference. First operand 23615 states and 67715 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:10,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:10,696 INFO L93 Difference]: Finished difference Result 78930 states and 222472 transitions. [2022-01-18 11:15:10,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:15:10,696 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:10,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:10,839 INFO L225 Difference]: With dead ends: 78930 [2022-01-18 11:15:10,839 INFO L226 Difference]: Without dead ends: 78930 [2022-01-18 11:15:10,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:15:10,840 INFO L933 BasicCegarLoop]: 1086 mSDtfsCounter, 3374 mSDsluCounter, 8985 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3374 SdHoareTripleChecker+Valid, 9926 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:10,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3374 Valid, 9926 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:15:10,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78930 states. [2022-01-18 11:15:11,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78930 to 24047. [2022-01-18 11:15:11,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24047 states, 24046 states have (on average 2.8794394078017134) internal successors, (69239), 24046 states have internal predecessors, (69239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:11,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24047 states to 24047 states and 69239 transitions. [2022-01-18 11:15:11,540 INFO L78 Accepts]: Start accepts. Automaton has 24047 states and 69239 transitions. Word has length 263 [2022-01-18 11:15:11,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:11,541 INFO L470 AbstractCegarLoop]: Abstraction has 24047 states and 69239 transitions. [2022-01-18 11:15:11,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 24047 states and 69239 transitions. [2022-01-18 11:15:11,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:11,573 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:11,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:11,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 11:15:11,573 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:11,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:11,574 INFO L85 PathProgramCache]: Analyzing trace with hash -175650031, now seen corresponding path program 39 times [2022-01-18 11:15:11,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:11,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189535594] [2022-01-18 11:15:11,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:11,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:11,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:11,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189535594] [2022-01-18 11:15:11,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189535594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:11,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:11,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:11,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380227898] [2022-01-18 11:15:11,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:11,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:11,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:11,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:11,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:11,751 INFO L87 Difference]: Start difference. First operand 24047 states and 69239 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:13,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:13,336 INFO L93 Difference]: Finished difference Result 79347 states and 224043 transitions. [2022-01-18 11:15:13,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:15:13,336 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:13,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:13,500 INFO L225 Difference]: With dead ends: 79347 [2022-01-18 11:15:13,501 INFO L226 Difference]: Without dead ends: 79347 [2022-01-18 11:15:13,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=862, Invalid=3044, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:15:13,502 INFO L933 BasicCegarLoop]: 1158 mSDtfsCounter, 2998 mSDsluCounter, 9621 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2998 SdHoareTripleChecker+Valid, 10662 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:13,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2998 Valid, 10662 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:13,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79347 states. [2022-01-18 11:15:14,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79347 to 23711. [2022-01-18 11:15:14,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23711 states, 23710 states have (on average 2.868620835090679) internal successors, (68015), 23710 states have internal predecessors, (68015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23711 states to 23711 states and 68015 transitions. [2022-01-18 11:15:14,374 INFO L78 Accepts]: Start accepts. Automaton has 23711 states and 68015 transitions. Word has length 263 [2022-01-18 11:15:14,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:14,374 INFO L470 AbstractCegarLoop]: Abstraction has 23711 states and 68015 transitions. [2022-01-18 11:15:14,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:14,374 INFO L276 IsEmpty]: Start isEmpty. Operand 23711 states and 68015 transitions. [2022-01-18 11:15:14,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:14,408 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:14,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:14,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 11:15:14,409 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:14,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:14,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1068792351, now seen corresponding path program 40 times [2022-01-18 11:15:14,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:14,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865299685] [2022-01-18 11:15:14,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:14,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:14,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:14,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865299685] [2022-01-18 11:15:14,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865299685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:14,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:14,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:14,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284594088] [2022-01-18 11:15:14,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:14,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:14,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:14,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:14,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:14,598 INFO L87 Difference]: Start difference. First operand 23711 states and 68015 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:15,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:15,952 INFO L93 Difference]: Finished difference Result 64047 states and 180962 transitions. [2022-01-18 11:15:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:15:15,953 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:15,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:16,091 INFO L225 Difference]: With dead ends: 64047 [2022-01-18 11:15:16,091 INFO L226 Difference]: Without dead ends: 64047 [2022-01-18 11:15:16,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=727, Invalid=2579, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:15:16,092 INFO L933 BasicCegarLoop]: 1004 mSDtfsCounter, 3009 mSDsluCounter, 8895 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3009 SdHoareTripleChecker+Valid, 9793 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:16,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3009 Valid, 9793 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:16,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64047 states. [2022-01-18 11:15:16,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64047 to 23679. [2022-01-18 11:15:16,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23679 states, 23678 states have (on average 2.8682743474955656) internal successors, (67915), 23678 states have internal predecessors, (67915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:16,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23679 states to 23679 states and 67915 transitions. [2022-01-18 11:15:16,821 INFO L78 Accepts]: Start accepts. Automaton has 23679 states and 67915 transitions. Word has length 263 [2022-01-18 11:15:16,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:16,821 INFO L470 AbstractCegarLoop]: Abstraction has 23679 states and 67915 transitions. [2022-01-18 11:15:16,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:16,822 INFO L276 IsEmpty]: Start isEmpty. Operand 23679 states and 67915 transitions. [2022-01-18 11:15:16,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:16,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:16,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:16,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 11:15:16,861 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:16,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:16,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1028540475, now seen corresponding path program 41 times [2022-01-18 11:15:16,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:16,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912577131] [2022-01-18 11:15:16,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:16,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:17,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:17,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:17,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912577131] [2022-01-18 11:15:17,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912577131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:17,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:17,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:17,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266260166] [2022-01-18 11:15:17,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:17,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:17,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:17,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:17,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:17,054 INFO L87 Difference]: Start difference. First operand 23679 states and 67915 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:18,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:18,470 INFO L93 Difference]: Finished difference Result 66982 states and 188444 transitions. [2022-01-18 11:15:18,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:15:18,471 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:18,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:18,589 INFO L225 Difference]: With dead ends: 66982 [2022-01-18 11:15:18,590 INFO L226 Difference]: Without dead ends: 66982 [2022-01-18 11:15:18,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=758, Invalid=2664, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:15:18,590 INFO L933 BasicCegarLoop]: 1045 mSDtfsCounter, 2945 mSDsluCounter, 8262 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2945 SdHoareTripleChecker+Valid, 9195 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:18,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2945 Valid, 9195 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:18,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66982 states. [2022-01-18 11:15:19,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66982 to 23615. [2022-01-18 11:15:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23615 states, 23614 states have (on average 2.8675785550944357) internal successors, (67715), 23614 states have internal predecessors, (67715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:19,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23615 states to 23615 states and 67715 transitions. [2022-01-18 11:15:19,209 INFO L78 Accepts]: Start accepts. Automaton has 23615 states and 67715 transitions. Word has length 263 [2022-01-18 11:15:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:19,209 INFO L470 AbstractCegarLoop]: Abstraction has 23615 states and 67715 transitions. [2022-01-18 11:15:19,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 23615 states and 67715 transitions. [2022-01-18 11:15:19,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:19,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:19,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:19,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 11:15:19,244 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:19,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:19,244 INFO L85 PathProgramCache]: Analyzing trace with hash 784293413, now seen corresponding path program 42 times [2022-01-18 11:15:19,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:19,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558330804] [2022-01-18 11:15:19,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:19,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:19,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:19,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:19,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558330804] [2022-01-18 11:15:19,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558330804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:19,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:19,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:19,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400941654] [2022-01-18 11:15:19,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:19,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:19,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:19,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:19,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:19,433 INFO L87 Difference]: Start difference. First operand 23615 states and 67715 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:20,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:20,565 INFO L93 Difference]: Finished difference Result 46407 states and 131100 transitions. [2022-01-18 11:15:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:15:20,566 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:20,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:20,659 INFO L225 Difference]: With dead ends: 46407 [2022-01-18 11:15:20,659 INFO L226 Difference]: Without dead ends: 46407 [2022-01-18 11:15:20,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=540, Invalid=2010, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:15:20,660 INFO L933 BasicCegarLoop]: 883 mSDtfsCounter, 2438 mSDsluCounter, 8407 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 9177 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:20,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2438 Valid, 9177 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:20,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46407 states. [2022-01-18 11:15:21,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46407 to 23991. [2022-01-18 11:15:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23991 states, 23990 states have (on average 2.8784076698624426) internal successors, (69053), 23990 states have internal predecessors, (69053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:21,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23991 states to 23991 states and 69053 transitions. [2022-01-18 11:15:21,186 INFO L78 Accepts]: Start accepts. Automaton has 23991 states and 69053 transitions. Word has length 263 [2022-01-18 11:15:21,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:21,186 INFO L470 AbstractCegarLoop]: Abstraction has 23991 states and 69053 transitions. [2022-01-18 11:15:21,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:21,187 INFO L276 IsEmpty]: Start isEmpty. Operand 23991 states and 69053 transitions. [2022-01-18 11:15:21,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:21,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:21,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:21,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 11:15:21,222 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:21,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:21,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1736263245, now seen corresponding path program 43 times [2022-01-18 11:15:21,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:21,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389677079] [2022-01-18 11:15:21,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:21,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:21,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:21,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:21,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389677079] [2022-01-18 11:15:21,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389677079] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:21,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:21,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:21,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133446683] [2022-01-18 11:15:21,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:21,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:21,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:21,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:21,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:21,421 INFO L87 Difference]: Start difference. First operand 23991 states and 69053 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:22,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:22,552 INFO L93 Difference]: Finished difference Result 47145 states and 133407 transitions. [2022-01-18 11:15:22,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:15:22,552 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:22,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:22,633 INFO L225 Difference]: With dead ends: 47145 [2022-01-18 11:15:22,633 INFO L226 Difference]: Without dead ends: 47145 [2022-01-18 11:15:22,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=579, Invalid=2177, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:15:22,634 INFO L933 BasicCegarLoop]: 942 mSDtfsCounter, 2428 mSDsluCounter, 8941 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2428 SdHoareTripleChecker+Valid, 9792 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:22,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2428 Valid, 9792 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47145 states. [2022-01-18 11:15:23,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47145 to 23663. [2022-01-18 11:15:23,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23663 states, 23662 states have (on average 2.8678471811343083) internal successors, (67859), 23662 states have internal predecessors, (67859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23663 states to 23663 states and 67859 transitions. [2022-01-18 11:15:23,167 INFO L78 Accepts]: Start accepts. Automaton has 23663 states and 67859 transitions. Word has length 263 [2022-01-18 11:15:23,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:23,167 INFO L470 AbstractCegarLoop]: Abstraction has 23663 states and 67859 transitions. [2022-01-18 11:15:23,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:23,168 INFO L276 IsEmpty]: Start isEmpty. Operand 23663 states and 67859 transitions. [2022-01-18 11:15:23,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:23,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:23,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:23,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 11:15:23,199 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:23,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:23,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1314261669, now seen corresponding path program 44 times [2022-01-18 11:15:23,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:23,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696016657] [2022-01-18 11:15:23,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:23,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:23,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:23,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:23,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696016657] [2022-01-18 11:15:23,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696016657] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:23,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:23,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:23,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579337764] [2022-01-18 11:15:23,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:23,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:23,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:23,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:23,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:23,368 INFO L87 Difference]: Start difference. First operand 23663 states and 67859 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:24,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:24,283 INFO L93 Difference]: Finished difference Result 31845 states and 90318 transitions. [2022-01-18 11:15:24,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:15:24,283 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:24,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:24,345 INFO L225 Difference]: With dead ends: 31845 [2022-01-18 11:15:24,345 INFO L226 Difference]: Without dead ends: 31845 [2022-01-18 11:15:24,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=470, Invalid=1786, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:15:24,346 INFO L933 BasicCegarLoop]: 789 mSDtfsCounter, 1684 mSDsluCounter, 7750 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1684 SdHoareTripleChecker+Valid, 8461 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:24,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1684 Valid, 8461 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:24,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31845 states. [2022-01-18 11:15:24,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31845 to 23631. [2022-01-18 11:15:24,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23631 states, 23630 states have (on average 2.8674989420228525) internal successors, (67759), 23630 states have internal predecessors, (67759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:24,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23631 states to 23631 states and 67759 transitions. [2022-01-18 11:15:24,759 INFO L78 Accepts]: Start accepts. Automaton has 23631 states and 67759 transitions. Word has length 263 [2022-01-18 11:15:24,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:24,759 INFO L470 AbstractCegarLoop]: Abstraction has 23631 states and 67759 transitions. [2022-01-18 11:15:24,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:24,760 INFO L276 IsEmpty]: Start isEmpty. Operand 23631 states and 67759 transitions. [2022-01-18 11:15:24,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:24,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:24,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:24,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 11:15:24,796 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:24,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:24,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1507820965, now seen corresponding path program 45 times [2022-01-18 11:15:24,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:24,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480295500] [2022-01-18 11:15:24,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:24,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:24,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:24,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480295500] [2022-01-18 11:15:24,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480295500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:24,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:24,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:24,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266555767] [2022-01-18 11:15:24,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:24,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:24,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:24,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:24,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:24,975 INFO L87 Difference]: Start difference. First operand 23631 states and 67759 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:25,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:25,962 INFO L93 Difference]: Finished difference Result 46226 states and 130613 transitions. [2022-01-18 11:15:25,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:15:25,962 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:25,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:26,042 INFO L225 Difference]: With dead ends: 46226 [2022-01-18 11:15:26,042 INFO L226 Difference]: Without dead ends: 46226 [2022-01-18 11:15:26,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=483, Invalid=1773, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:15:26,042 INFO L933 BasicCegarLoop]: 819 mSDtfsCounter, 2169 mSDsluCounter, 7310 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2169 SdHoareTripleChecker+Valid, 8034 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:26,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2169 Valid, 8034 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:26,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46226 states. [2022-01-18 11:15:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46226 to 23991. [2022-01-18 11:15:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23991 states, 23990 states have (on average 2.8784076698624426) internal successors, (69053), 23990 states have internal predecessors, (69053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:26,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23991 states to 23991 states and 69053 transitions. [2022-01-18 11:15:26,589 INFO L78 Accepts]: Start accepts. Automaton has 23991 states and 69053 transitions. Word has length 263 [2022-01-18 11:15:26,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:26,590 INFO L470 AbstractCegarLoop]: Abstraction has 23991 states and 69053 transitions. [2022-01-18 11:15:26,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:26,590 INFO L276 IsEmpty]: Start isEmpty. Operand 23991 states and 69053 transitions. [2022-01-18 11:15:26,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:26,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:26,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:26,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 11:15:26,624 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:26,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:26,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1835176499, now seen corresponding path program 46 times [2022-01-18 11:15:26,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:26,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966901791] [2022-01-18 11:15:26,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:26,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:26,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:26,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:26,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966901791] [2022-01-18 11:15:26,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966901791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:26,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:26,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:15:26,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332305595] [2022-01-18 11:15:26,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:26,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:15:26,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:26,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:15:26,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:15:26,816 INFO L87 Difference]: Start difference. First operand 23991 states and 69053 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:27,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:27,961 INFO L93 Difference]: Finished difference Result 46707 states and 132195 transitions. [2022-01-18 11:15:27,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:15:27,962 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:27,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:28,050 INFO L225 Difference]: With dead ends: 46707 [2022-01-18 11:15:28,051 INFO L226 Difference]: Without dead ends: 46707 [2022-01-18 11:15:28,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=555, Invalid=2097, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:15:28,051 INFO L933 BasicCegarLoop]: 842 mSDtfsCounter, 2447 mSDsluCounter, 7496 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 8272 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:28,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2447 Valid, 8272 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:28,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46707 states. [2022-01-18 11:15:28,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46707 to 23663. [2022-01-18 11:15:28,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23663 states, 23662 states have (on average 2.8678471811343083) internal successors, (67859), 23662 states have internal predecessors, (67859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:28,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23663 states to 23663 states and 67859 transitions. [2022-01-18 11:15:28,617 INFO L78 Accepts]: Start accepts. Automaton has 23663 states and 67859 transitions. Word has length 263 [2022-01-18 11:15:28,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:28,617 INFO L470 AbstractCegarLoop]: Abstraction has 23663 states and 67859 transitions. [2022-01-18 11:15:28,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:28,617 INFO L276 IsEmpty]: Start isEmpty. Operand 23663 states and 67859 transitions. [2022-01-18 11:15:28,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:28,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:28,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:28,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 11:15:28,652 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:28,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:28,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1765305867, now seen corresponding path program 47 times [2022-01-18 11:15:28,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:28,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391674300] [2022-01-18 11:15:28,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:28,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:28,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:28,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391674300] [2022-01-18 11:15:28,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391674300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:28,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:28,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:28,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030900526] [2022-01-18 11:15:28,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:28,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:28,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:28,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:28,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:28,829 INFO L87 Difference]: Start difference. First operand 23663 states and 67859 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:29,622 INFO L93 Difference]: Finished difference Result 31494 states and 89290 transitions. [2022-01-18 11:15:29,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:15:29,627 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:29,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:29,684 INFO L225 Difference]: With dead ends: 31494 [2022-01-18 11:15:29,684 INFO L226 Difference]: Without dead ends: 31494 [2022-01-18 11:15:29,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=420, Invalid=1560, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:15:29,685 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 1788 mSDsluCounter, 6357 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1788 SdHoareTripleChecker+Valid, 6991 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:29,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1788 Valid, 6991 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:15:29,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31494 states. [2022-01-18 11:15:30,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31494 to 23627. [2022-01-18 11:15:30,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23627 states, 23626 states have (on average 2.8675188351815795) internal successors, (67748), 23626 states have internal predecessors, (67748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:30,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23627 states to 23627 states and 67748 transitions. [2022-01-18 11:15:30,094 INFO L78 Accepts]: Start accepts. Automaton has 23627 states and 67748 transitions. Word has length 263 [2022-01-18 11:15:30,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:30,095 INFO L470 AbstractCegarLoop]: Abstraction has 23627 states and 67748 transitions. [2022-01-18 11:15:30,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:30,095 INFO L276 IsEmpty]: Start isEmpty. Operand 23627 states and 67748 transitions. [2022-01-18 11:15:30,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:30,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:30,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:30,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 11:15:30,127 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:30,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:30,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1253976263, now seen corresponding path program 48 times [2022-01-18 11:15:30,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:30,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949318365] [2022-01-18 11:15:30,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:30,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:30,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:30,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949318365] [2022-01-18 11:15:30,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949318365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:30,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:30,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:30,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432569147] [2022-01-18 11:15:30,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:30,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:30,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:30,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:30,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:30,318 INFO L87 Difference]: Start difference. First operand 23627 states and 67748 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:31,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:31,723 INFO L93 Difference]: Finished difference Result 63426 states and 178905 transitions. [2022-01-18 11:15:31,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:15:31,724 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:31,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:31,860 INFO L225 Difference]: With dead ends: 63426 [2022-01-18 11:15:31,861 INFO L226 Difference]: Without dead ends: 63426 [2022-01-18 11:15:31,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=673, Invalid=2407, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:15:31,862 INFO L933 BasicCegarLoop]: 1030 mSDtfsCounter, 2530 mSDsluCounter, 9014 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 9914 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:31,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2530 Valid, 9914 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:31,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63426 states. [2022-01-18 11:15:32,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63426 to 24059. [2022-01-18 11:15:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24059 states, 24058 states have (on average 2.8793748441266938) internal successors, (69272), 24058 states have internal predecessors, (69272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:32,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24059 states to 24059 states and 69272 transitions. [2022-01-18 11:15:32,558 INFO L78 Accepts]: Start accepts. Automaton has 24059 states and 69272 transitions. Word has length 263 [2022-01-18 11:15:32,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:32,558 INFO L470 AbstractCegarLoop]: Abstraction has 24059 states and 69272 transitions. [2022-01-18 11:15:32,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:32,559 INFO L276 IsEmpty]: Start isEmpty. Operand 24059 states and 69272 transitions. [2022-01-18 11:15:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:32,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:32,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:32,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 11:15:32,593 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:32,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:32,594 INFO L85 PathProgramCache]: Analyzing trace with hash -2089021201, now seen corresponding path program 49 times [2022-01-18 11:15:32,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:32,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303084853] [2022-01-18 11:15:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:32,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:32,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:32,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303084853] [2022-01-18 11:15:32,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303084853] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:32,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:32,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:32,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491367166] [2022-01-18 11:15:32,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:32,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:32,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:32,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:32,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:32,765 INFO L87 Difference]: Start difference. First operand 24059 states and 69272 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:34,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:34,139 INFO L93 Difference]: Finished difference Result 64083 states and 181050 transitions. [2022-01-18 11:15:34,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:15:34,143 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:34,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:34,267 INFO L225 Difference]: With dead ends: 64083 [2022-01-18 11:15:34,267 INFO L226 Difference]: Without dead ends: 64083 [2022-01-18 11:15:34,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=712, Invalid=2594, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:15:34,268 INFO L933 BasicCegarLoop]: 1114 mSDtfsCounter, 2704 mSDsluCounter, 9114 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 10122 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:34,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2704 Valid, 10122 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:34,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64083 states. [2022-01-18 11:15:34,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64083 to 23723. [2022-01-18 11:15:34,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23723 states, 23722 states have (on average 2.868560829609645) internal successors, (68048), 23722 states have internal predecessors, (68048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:34,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23723 states to 23723 states and 68048 transitions. [2022-01-18 11:15:34,888 INFO L78 Accepts]: Start accepts. Automaton has 23723 states and 68048 transitions. Word has length 263 [2022-01-18 11:15:34,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:34,889 INFO L470 AbstractCegarLoop]: Abstraction has 23723 states and 68048 transitions. [2022-01-18 11:15:34,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:34,889 INFO L276 IsEmpty]: Start isEmpty. Operand 23723 states and 68048 transitions. [2022-01-18 11:15:34,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:34,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:34,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:34,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 11:15:34,921 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:34,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash -844578819, now seen corresponding path program 50 times [2022-01-18 11:15:34,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:34,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321713814] [2022-01-18 11:15:34,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:34,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:35,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:35,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321713814] [2022-01-18 11:15:35,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321713814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:35,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:35,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:35,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313009635] [2022-01-18 11:15:35,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:35,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:35,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:35,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:35,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:35,092 INFO L87 Difference]: Start difference. First operand 23723 states and 68048 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:36,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:36,203 INFO L93 Difference]: Finished difference Result 48783 states and 137969 transitions. [2022-01-18 11:15:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:15:36,203 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:36,302 INFO L225 Difference]: With dead ends: 48783 [2022-01-18 11:15:36,302 INFO L226 Difference]: Without dead ends: 48783 [2022-01-18 11:15:36,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:15:36,303 INFO L933 BasicCegarLoop]: 960 mSDtfsCounter, 2495 mSDsluCounter, 7922 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 8789 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:36,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2495 Valid, 8789 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:36,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48783 states. [2022-01-18 11:15:36,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48783 to 23691. [2022-01-18 11:15:36,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23691 states, 23690 states have (on average 2.8682144364710846) internal successors, (67948), 23690 states have internal predecessors, (67948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:36,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 67948 transitions. [2022-01-18 11:15:36,886 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 67948 transitions. Word has length 263 [2022-01-18 11:15:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:36,887 INFO L470 AbstractCegarLoop]: Abstraction has 23691 states and 67948 transitions. [2022-01-18 11:15:36,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 67948 transitions. [2022-01-18 11:15:36,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:36,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:36,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:36,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 11:15:36,929 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:36,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:36,930 INFO L85 PathProgramCache]: Analyzing trace with hash -884830695, now seen corresponding path program 51 times [2022-01-18 11:15:36,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:36,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603100512] [2022-01-18 11:15:36,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:36,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:37,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:37,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:37,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603100512] [2022-01-18 11:15:37,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603100512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:37,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:37,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:37,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912734200] [2022-01-18 11:15:37,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:37,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:37,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:37,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:37,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:37,110 INFO L87 Difference]: Start difference. First operand 23691 states and 67948 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:38,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:38,308 INFO L93 Difference]: Finished difference Result 51718 states and 145451 transitions. [2022-01-18 11:15:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:15:38,309 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:38,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:38,404 INFO L225 Difference]: With dead ends: 51718 [2022-01-18 11:15:38,404 INFO L226 Difference]: Without dead ends: 51718 [2022-01-18 11:15:38,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=616, Invalid=2246, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:15:38,411 INFO L933 BasicCegarLoop]: 1001 mSDtfsCounter, 2155 mSDsluCounter, 8285 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 9180 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:38,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2155 Valid, 9180 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:38,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51718 states. [2022-01-18 11:15:38,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51718 to 23619. [2022-01-18 11:15:38,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23619 states, 23618 states have (on average 2.867558641713947) internal successors, (67726), 23618 states have internal predecessors, (67726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:38,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23619 states to 23619 states and 67726 transitions. [2022-01-18 11:15:38,924 INFO L78 Accepts]: Start accepts. Automaton has 23619 states and 67726 transitions. Word has length 263 [2022-01-18 11:15:38,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:38,924 INFO L470 AbstractCegarLoop]: Abstraction has 23619 states and 67726 transitions. [2022-01-18 11:15:38,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:38,924 INFO L276 IsEmpty]: Start isEmpty. Operand 23619 states and 67726 transitions. [2022-01-18 11:15:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:38,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:38,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:38,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 11:15:38,967 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:38,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:38,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1647629033, now seen corresponding path program 52 times [2022-01-18 11:15:38,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:38,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233343144] [2022-01-18 11:15:38,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:38,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:39,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:39,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:39,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233343144] [2022-01-18 11:15:39,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233343144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:39,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:39,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:39,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516934002] [2022-01-18 11:15:39,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:39,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:39,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:39,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:39,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:39,165 INFO L87 Difference]: Start difference. First operand 23619 states and 67726 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:40,437 INFO L93 Difference]: Finished difference Result 46638 states and 131696 transitions. [2022-01-18 11:15:40,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:15:40,438 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:40,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:40,523 INFO L225 Difference]: With dead ends: 46638 [2022-01-18 11:15:40,523 INFO L226 Difference]: Without dead ends: 46638 [2022-01-18 11:15:40,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=584, Invalid=2068, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:15:40,524 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 2773 mSDsluCounter, 8881 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2773 SdHoareTripleChecker+Valid, 9702 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:40,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2773 Valid, 9702 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:40,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46638 states. [2022-01-18 11:15:40,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46638 to 24087. [2022-01-18 11:15:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24087 states, 24086 states have (on average 2.879888732043511) internal successors, (69365), 24086 states have internal predecessors, (69365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:41,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24087 states to 24087 states and 69365 transitions. [2022-01-18 11:15:41,075 INFO L78 Accepts]: Start accepts. Automaton has 24087 states and 69365 transitions. Word has length 263 [2022-01-18 11:15:41,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:41,075 INFO L470 AbstractCegarLoop]: Abstraction has 24087 states and 69365 transitions. [2022-01-18 11:15:41,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:41,076 INFO L276 IsEmpty]: Start isEmpty. Operand 24087 states and 69365 transitions. [2022-01-18 11:15:41,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:41,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:41,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:41,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 11:15:41,111 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:41,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:41,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1695368431, now seen corresponding path program 53 times [2022-01-18 11:15:41,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:41,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917298395] [2022-01-18 11:15:41,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:41,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:41,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:41,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:41,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917298395] [2022-01-18 11:15:41,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917298395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:41,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:41,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:41,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571114547] [2022-01-18 11:15:41,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:41,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:41,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:41,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:41,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:41,287 INFO L87 Difference]: Start difference. First operand 24087 states and 69365 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:42,368 INFO L93 Difference]: Finished difference Result 47445 states and 134182 transitions. [2022-01-18 11:15:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:15:42,368 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:42,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:42,455 INFO L225 Difference]: With dead ends: 47445 [2022-01-18 11:15:42,455 INFO L226 Difference]: Without dead ends: 47445 [2022-01-18 11:15:42,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1922, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:15:42,456 INFO L933 BasicCegarLoop]: 973 mSDtfsCounter, 2554 mSDsluCounter, 7866 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 8736 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:42,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2554 Valid, 8736 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:42,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47445 states. [2022-01-18 11:15:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47445 to 23747. [2022-01-18 11:15:42,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23747 states, 23746 states have (on average 2.868946348858755) internal successors, (68126), 23746 states have internal predecessors, (68126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:42,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23747 states to 23747 states and 68126 transitions. [2022-01-18 11:15:42,969 INFO L78 Accepts]: Start accepts. Automaton has 23747 states and 68126 transitions. Word has length 263 [2022-01-18 11:15:42,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:42,970 INFO L470 AbstractCegarLoop]: Abstraction has 23747 states and 68126 transitions. [2022-01-18 11:15:42,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:42,970 INFO L276 IsEmpty]: Start isEmpty. Operand 23747 states and 68126 transitions. [2022-01-18 11:15:43,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:43,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:43,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:43,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 11:15:43,002 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:43,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:43,003 INFO L85 PathProgramCache]: Analyzing trace with hash -450926049, now seen corresponding path program 54 times [2022-01-18 11:15:43,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:43,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530220975] [2022-01-18 11:15:43,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:43,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:43,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:43,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:43,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530220975] [2022-01-18 11:15:43,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530220975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:43,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:43,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:43,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096077932] [2022-01-18 11:15:43,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:43,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:43,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:43,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:43,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:43,181 INFO L87 Difference]: Start difference. First operand 23747 states and 68126 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:44,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:44,186 INFO L93 Difference]: Finished difference Result 48012 states and 135811 transitions. [2022-01-18 11:15:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:15:44,187 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:44,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:44,270 INFO L225 Difference]: With dead ends: 48012 [2022-01-18 11:15:44,270 INFO L226 Difference]: Without dead ends: 48012 [2022-01-18 11:15:44,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=506, Invalid=1846, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:15:44,271 INFO L933 BasicCegarLoop]: 940 mSDtfsCounter, 2123 mSDsluCounter, 7831 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2123 SdHoareTripleChecker+Valid, 8671 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:44,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2123 Valid, 8671 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:44,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48012 states. [2022-01-18 11:15:44,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48012 to 23715. [2022-01-18 11:15:44,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23715 states, 23714 states have (on average 2.868600826515982) internal successors, (68026), 23714 states have internal predecessors, (68026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:44,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23715 states to 23715 states and 68026 transitions. [2022-01-18 11:15:44,766 INFO L78 Accepts]: Start accepts. Automaton has 23715 states and 68026 transitions. Word has length 263 [2022-01-18 11:15:44,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:44,767 INFO L470 AbstractCegarLoop]: Abstraction has 23715 states and 68026 transitions. [2022-01-18 11:15:44,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:44,767 INFO L276 IsEmpty]: Start isEmpty. Operand 23715 states and 68026 transitions. [2022-01-18 11:15:44,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:44,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:44,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:44,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 11:15:44,798 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:44,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:44,798 INFO L85 PathProgramCache]: Analyzing trace with hash -491177925, now seen corresponding path program 55 times [2022-01-18 11:15:44,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:44,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231167664] [2022-01-18 11:15:44,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:44,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:44,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:44,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:44,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231167664] [2022-01-18 11:15:44,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231167664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:44,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:44,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:44,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208250629] [2022-01-18 11:15:44,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:44,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:44,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:44,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:44,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:44,970 INFO L87 Difference]: Start difference. First operand 23715 states and 68026 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:45,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:45,996 INFO L93 Difference]: Finished difference Result 51905 states and 145930 transitions. [2022-01-18 11:15:45,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:15:45,996 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:45,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:46,096 INFO L225 Difference]: With dead ends: 51905 [2022-01-18 11:15:46,097 INFO L226 Difference]: Without dead ends: 51905 [2022-01-18 11:15:46,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=557, Invalid=1993, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:15:46,098 INFO L933 BasicCegarLoop]: 955 mSDtfsCounter, 2328 mSDsluCounter, 7769 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2328 SdHoareTripleChecker+Valid, 8620 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:46,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2328 Valid, 8620 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:46,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51905 states. [2022-01-18 11:15:46,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51905 to 23651. [2022-01-18 11:15:46,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23651 states, 23650 states have (on average 2.867906976744186) internal successors, (67826), 23650 states have internal predecessors, (67826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:46,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23651 states to 23651 states and 67826 transitions. [2022-01-18 11:15:46,681 INFO L78 Accepts]: Start accepts. Automaton has 23651 states and 67826 transitions. Word has length 263 [2022-01-18 11:15:46,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:46,681 INFO L470 AbstractCegarLoop]: Abstraction has 23651 states and 67826 transitions. [2022-01-18 11:15:46,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:46,682 INFO L276 IsEmpty]: Start isEmpty. Operand 23651 states and 67826 transitions. [2022-01-18 11:15:46,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:46,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:46,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:46,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 11:15:46,715 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:46,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:46,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1242645113, now seen corresponding path program 56 times [2022-01-18 11:15:46,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:46,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052875023] [2022-01-18 11:15:46,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:46,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:46,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:46,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:46,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052875023] [2022-01-18 11:15:46,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052875023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:46,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:46,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:46,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765090693] [2022-01-18 11:15:46,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:46,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:46,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:46,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:46,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:46,907 INFO L87 Difference]: Start difference. First operand 23651 states and 67826 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:47,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:47,919 INFO L93 Difference]: Finished difference Result 32152 states and 90875 transitions. [2022-01-18 11:15:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:15:47,920 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:47,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:47,976 INFO L225 Difference]: With dead ends: 32152 [2022-01-18 11:15:47,976 INFO L226 Difference]: Without dead ends: 32152 [2022-01-18 11:15:47,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=483, Invalid=1773, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:15:47,977 INFO L933 BasicCegarLoop]: 797 mSDtfsCounter, 1755 mSDsluCounter, 7568 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 8260 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:47,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1755 Valid, 8260 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:48,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32152 states. [2022-01-18 11:15:48,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32152 to 23619. [2022-01-18 11:15:48,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23619 states, 23618 states have (on average 2.867558641713947) internal successors, (67726), 23618 states have internal predecessors, (67726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23619 states to 23619 states and 67726 transitions. [2022-01-18 11:15:48,343 INFO L78 Accepts]: Start accepts. Automaton has 23619 states and 67726 transitions. Word has length 263 [2022-01-18 11:15:48,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:48,343 INFO L470 AbstractCegarLoop]: Abstraction has 23619 states and 67726 transitions. [2022-01-18 11:15:48,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:48,344 INFO L276 IsEmpty]: Start isEmpty. Operand 23619 states and 67726 transitions. [2022-01-18 11:15:48,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:48,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:48,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:48,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 11:15:48,374 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:48,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:48,375 INFO L85 PathProgramCache]: Analyzing trace with hash -815698907, now seen corresponding path program 57 times [2022-01-18 11:15:48,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:48,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57645958] [2022-01-18 11:15:48,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:48,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:48,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:48,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57645958] [2022-01-18 11:15:48,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57645958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:48,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:48,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:48,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023583632] [2022-01-18 11:15:48,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:48,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:48,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:48,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:48,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:48,548 INFO L87 Difference]: Start difference. First operand 23619 states and 67726 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:49,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:49,894 INFO L93 Difference]: Finished difference Result 62289 states and 175738 transitions. [2022-01-18 11:15:49,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:15:49,895 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:49,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:50,008 INFO L225 Difference]: With dead ends: 62289 [2022-01-18 11:15:50,008 INFO L226 Difference]: Without dead ends: 62289 [2022-01-18 11:15:50,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=595, Invalid=2267, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:15:50,009 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 2403 mSDsluCounter, 9188 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 9961 SdHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:50,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 9961 Invalid, 1896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:50,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62289 states. [2022-01-18 11:15:50,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62289 to 24019. [2022-01-18 11:15:50,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24019 states, 24018 states have (on average 2.8782579731867766) internal successors, (69130), 24018 states have internal predecessors, (69130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24019 states to 24019 states and 69130 transitions. [2022-01-18 11:15:50,616 INFO L78 Accepts]: Start accepts. Automaton has 24019 states and 69130 transitions. Word has length 263 [2022-01-18 11:15:50,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:50,617 INFO L470 AbstractCegarLoop]: Abstraction has 24019 states and 69130 transitions. [2022-01-18 11:15:50,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 69130 transitions. [2022-01-18 11:15:50,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:50,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:50,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:50,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 11:15:50,648 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:50,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:50,648 INFO L85 PathProgramCache]: Analyzing trace with hash 136270925, now seen corresponding path program 58 times [2022-01-18 11:15:50,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:50,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391919487] [2022-01-18 11:15:50,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:50,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:50,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:50,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:50,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391919487] [2022-01-18 11:15:50,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391919487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:50,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:50,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:50,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676831920] [2022-01-18 11:15:50,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:50,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:50,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:50,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:50,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:50,831 INFO L87 Difference]: Start difference. First operand 24019 states and 69130 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:52,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:52,109 INFO L93 Difference]: Finished difference Result 62784 states and 177465 transitions. [2022-01-18 11:15:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:15:52,109 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:52,228 INFO L225 Difference]: With dead ends: 62784 [2022-01-18 11:15:52,228 INFO L226 Difference]: Without dead ends: 62784 [2022-01-18 11:15:52,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=550, Invalid=2102, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:15:52,229 INFO L933 BasicCegarLoop]: 934 mSDtfsCounter, 2882 mSDsluCounter, 9182 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2882 SdHoareTripleChecker+Valid, 10015 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:52,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2882 Valid, 10015 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62784 states. [2022-01-18 11:15:52,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62784 to 23691. [2022-01-18 11:15:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23691 states, 23690 states have (on average 2.8677078936260023) internal successors, (67936), 23690 states have internal predecessors, (67936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 67936 transitions. [2022-01-18 11:15:52,851 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 67936 transitions. Word has length 263 [2022-01-18 11:15:52,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:52,851 INFO L470 AbstractCegarLoop]: Abstraction has 23691 states and 67936 transitions. [2022-01-18 11:15:52,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:52,852 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 67936 transitions. [2022-01-18 11:15:52,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:52,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:52,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:52,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 11:15:52,883 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:52,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:52,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1380713307, now seen corresponding path program 59 times [2022-01-18 11:15:52,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:52,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108102294] [2022-01-18 11:15:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:52,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:53,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:53,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108102294] [2022-01-18 11:15:53,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108102294] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:53,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:53,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:53,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139209503] [2022-01-18 11:15:53,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:53,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:53,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:53,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:53,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:53,048 INFO L87 Difference]: Start difference. First operand 23691 states and 67936 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:54,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:54,050 INFO L93 Difference]: Finished difference Result 49772 states and 141268 transitions. [2022-01-18 11:15:54,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:15:54,050 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:54,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:54,143 INFO L225 Difference]: With dead ends: 49772 [2022-01-18 11:15:54,144 INFO L226 Difference]: Without dead ends: 49772 [2022-01-18 11:15:54,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=486, Invalid=1866, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:15:54,144 INFO L933 BasicCegarLoop]: 842 mSDtfsCounter, 2401 mSDsluCounter, 7798 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2401 SdHoareTripleChecker+Valid, 8550 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:54,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2401 Valid, 8550 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:15:54,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49772 states. [2022-01-18 11:15:54,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49772 to 23659. [2022-01-18 11:15:54,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23659 states, 23658 states have (on average 2.86735987826528) internal successors, (67836), 23658 states have internal predecessors, (67836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:54,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23659 states to 23659 states and 67836 transitions. [2022-01-18 11:15:54,683 INFO L78 Accepts]: Start accepts. Automaton has 23659 states and 67836 transitions. Word has length 263 [2022-01-18 11:15:54,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:54,683 INFO L470 AbstractCegarLoop]: Abstraction has 23659 states and 67836 transitions. [2022-01-18 11:15:54,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:54,683 INFO L276 IsEmpty]: Start isEmpty. Operand 23659 states and 67836 transitions. [2022-01-18 11:15:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:54,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:54,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:54,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 11:15:54,717 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash -92171355, now seen corresponding path program 60 times [2022-01-18 11:15:54,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:54,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295502763] [2022-01-18 11:15:54,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:54,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:54,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:54,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:54,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295502763] [2022-01-18 11:15:54,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295502763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:54,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:54,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:54,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351929548] [2022-01-18 11:15:54,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:54,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:54,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:54,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:54,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:54,897 INFO L87 Difference]: Start difference. First operand 23659 states and 67836 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:56,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:56,250 INFO L93 Difference]: Finished difference Result 65104 states and 184105 transitions. [2022-01-18 11:15:56,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:15:56,250 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:56,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:56,378 INFO L225 Difference]: With dead ends: 65104 [2022-01-18 11:15:56,378 INFO L226 Difference]: Without dead ends: 65104 [2022-01-18 11:15:56,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=609, Invalid=2361, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:15:56,379 INFO L933 BasicCegarLoop]: 984 mSDtfsCounter, 2644 mSDsluCounter, 9992 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2644 SdHoareTripleChecker+Valid, 10843 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:56,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2644 Valid, 10843 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2064 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:15:56,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65104 states. [2022-01-18 11:15:57,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65104 to 24019. [2022-01-18 11:15:57,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24019 states, 24018 states have (on average 2.8782579731867766) internal successors, (69130), 24018 states have internal predecessors, (69130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:57,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24019 states to 24019 states and 69130 transitions. [2022-01-18 11:15:57,084 INFO L78 Accepts]: Start accepts. Automaton has 24019 states and 69130 transitions. Word has length 263 [2022-01-18 11:15:57,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:57,084 INFO L470 AbstractCegarLoop]: Abstraction has 24019 states and 69130 transitions. [2022-01-18 11:15:57,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:57,084 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 69130 transitions. [2022-01-18 11:15:57,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:57,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:57,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:57,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 11:15:57,119 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:57,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:57,120 INFO L85 PathProgramCache]: Analyzing trace with hash 859798477, now seen corresponding path program 61 times [2022-01-18 11:15:57,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:57,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817962363] [2022-01-18 11:15:57,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:57,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:57,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:57,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:57,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817962363] [2022-01-18 11:15:57,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817962363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:57,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:57,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:57,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541277794] [2022-01-18 11:15:57,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:57,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:57,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:57,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:57,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:57,388 INFO L87 Difference]: Start difference. First operand 24019 states and 69130 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:58,745 INFO L93 Difference]: Finished difference Result 65402 states and 185268 transitions. [2022-01-18 11:15:58,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:15:58,746 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:15:58,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:58,878 INFO L225 Difference]: With dead ends: 65402 [2022-01-18 11:15:58,878 INFO L226 Difference]: Without dead ends: 65402 [2022-01-18 11:15:58,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=609, Invalid=2361, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:15:58,879 INFO L933 BasicCegarLoop]: 974 mSDtfsCounter, 2632 mSDsluCounter, 9639 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2632 SdHoareTripleChecker+Valid, 10526 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:58,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2632 Valid, 10526 Invalid, 1918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:15:58,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65402 states. [2022-01-18 11:15:59,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65402 to 23691. [2022-01-18 11:15:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23691 states, 23690 states have (on average 2.8677078936260023) internal successors, (67936), 23690 states have internal predecessors, (67936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 67936 transitions. [2022-01-18 11:15:59,543 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 67936 transitions. Word has length 263 [2022-01-18 11:15:59,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:59,543 INFO L470 AbstractCegarLoop]: Abstraction has 23691 states and 67936 transitions. [2022-01-18 11:15:59,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:59,543 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 67936 transitions. [2022-01-18 11:15:59,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:15:59,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:59,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:59,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 11:15:59,575 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:59,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:59,575 INFO L85 PathProgramCache]: Analyzing trace with hash 165313547, now seen corresponding path program 62 times [2022-01-18 11:15:59,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:59,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895959733] [2022-01-18 11:15:59,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:59,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:59,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:59,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895959733] [2022-01-18 11:15:59,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895959733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:59,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:59,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:15:59,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267774647] [2022-01-18 11:15:59,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:59,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:15:59,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:59,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:15:59,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:15:59,746 INFO L87 Difference]: Start difference. First operand 23691 states and 67936 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:00,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:00,883 INFO L93 Difference]: Finished difference Result 50316 states and 142632 transitions. [2022-01-18 11:16:00,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:16:00,883 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:00,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:00,980 INFO L225 Difference]: With dead ends: 50316 [2022-01-18 11:16:00,980 INFO L226 Difference]: Without dead ends: 50316 [2022-01-18 11:16:00,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1950, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:16:00,981 INFO L933 BasicCegarLoop]: 910 mSDtfsCounter, 2134 mSDsluCounter, 9013 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 9792 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:00,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2134 Valid, 9792 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:01,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50316 states. [2022-01-18 11:16:01,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50316 to 23655. [2022-01-18 11:16:01,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23655 states, 23654 states have (on average 2.8673797243595165) internal successors, (67825), 23654 states have internal predecessors, (67825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:01,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23655 states to 23655 states and 67825 transitions. [2022-01-18 11:16:01,507 INFO L78 Accepts]: Start accepts. Automaton has 23655 states and 67825 transitions. Word has length 263 [2022-01-18 11:16:01,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:01,508 INFO L470 AbstractCegarLoop]: Abstraction has 23655 states and 67825 transitions. [2022-01-18 11:16:01,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:01,508 INFO L276 IsEmpty]: Start isEmpty. Operand 23655 states and 67825 transitions. [2022-01-18 11:16:01,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:01,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:01,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:01,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 11:16:01,540 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:01,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:01,540 INFO L85 PathProgramCache]: Analyzing trace with hash -2008420537, now seen corresponding path program 63 times [2022-01-18 11:16:01,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:01,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844633205] [2022-01-18 11:16:01,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:01,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:01,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:01,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:01,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844633205] [2022-01-18 11:16:01,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844633205] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:01,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:01,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:01,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668716018] [2022-01-18 11:16:01,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:01,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:01,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:01,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:01,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:01,713 INFO L87 Difference]: Start difference. First operand 23655 states and 67825 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:03,231 INFO L93 Difference]: Finished difference Result 65088 states and 184073 transitions. [2022-01-18 11:16:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:16:03,231 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:03,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:03,359 INFO L225 Difference]: With dead ends: 65088 [2022-01-18 11:16:03,359 INFO L226 Difference]: Without dead ends: 65088 [2022-01-18 11:16:03,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=738, Invalid=2802, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:16:03,360 INFO L933 BasicCegarLoop]: 1050 mSDtfsCounter, 3144 mSDsluCounter, 10140 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3144 SdHoareTripleChecker+Valid, 11037 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:03,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3144 Valid, 11037 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:16:03,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65088 states. [2022-01-18 11:16:03,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65088 to 24087. [2022-01-18 11:16:04,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24087 states, 24086 states have (on average 2.8792244457361122) internal successors, (69349), 24086 states have internal predecessors, (69349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:04,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24087 states to 24087 states and 69349 transitions. [2022-01-18 11:16:04,067 INFO L78 Accepts]: Start accepts. Automaton has 24087 states and 69349 transitions. Word has length 263 [2022-01-18 11:16:04,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:04,067 INFO L470 AbstractCegarLoop]: Abstraction has 24087 states and 69349 transitions. [2022-01-18 11:16:04,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:04,068 INFO L276 IsEmpty]: Start isEmpty. Operand 24087 states and 69349 transitions. [2022-01-18 11:16:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:04,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:04,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:04,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 11:16:04,101 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:04,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:04,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1056450705, now seen corresponding path program 64 times [2022-01-18 11:16:04,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:04,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684154307] [2022-01-18 11:16:04,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:04,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:04,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:04,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:04,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684154307] [2022-01-18 11:16:04,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684154307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:04,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:04,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:04,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326364464] [2022-01-18 11:16:04,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:04,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:04,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:04,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:04,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:04,282 INFO L87 Difference]: Start difference. First operand 24087 states and 69349 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:05,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:05,759 INFO L93 Difference]: Finished difference Result 65386 states and 185236 transitions. [2022-01-18 11:16:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:16:05,759 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:05,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:05,902 INFO L225 Difference]: With dead ends: 65386 [2022-01-18 11:16:05,902 INFO L226 Difference]: Without dead ends: 65386 [2022-01-18 11:16:05,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=696, Invalid=2610, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:16:05,903 INFO L933 BasicCegarLoop]: 1025 mSDtfsCounter, 2688 mSDsluCounter, 9967 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 10892 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:05,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2688 Valid, 10892 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:16:05,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65386 states. [2022-01-18 11:16:06,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65386 to 23751. [2022-01-18 11:16:06,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23751 states, 23750 states have (on average 2.8684210526315788) internal successors, (68125), 23750 states have internal predecessors, (68125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:06,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23751 states to 23751 states and 68125 transitions. [2022-01-18 11:16:06,586 INFO L78 Accepts]: Start accepts. Automaton has 23751 states and 68125 transitions. Word has length 263 [2022-01-18 11:16:06,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:06,586 INFO L470 AbstractCegarLoop]: Abstraction has 23751 states and 68125 transitions. [2022-01-18 11:16:06,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:06,586 INFO L276 IsEmpty]: Start isEmpty. Operand 23751 states and 68125 transitions. [2022-01-18 11:16:06,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:06,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:06,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:06,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 11:16:06,620 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:06,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:06,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1750935635, now seen corresponding path program 65 times [2022-01-18 11:16:06,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:06,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471615754] [2022-01-18 11:16:06,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:06,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:06,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:06,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:06,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471615754] [2022-01-18 11:16:06,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471615754] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:06,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:06,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:06,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403070241] [2022-01-18 11:16:06,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:06,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:06,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:06,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:06,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:06,793 INFO L87 Difference]: Start difference. First operand 23751 states and 68125 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:08,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:08,114 INFO L93 Difference]: Finished difference Result 50756 states and 143850 transitions. [2022-01-18 11:16:08,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:16:08,114 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:08,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:08,339 INFO L225 Difference]: With dead ends: 50756 [2022-01-18 11:16:08,339 INFO L226 Difference]: Without dead ends: 50756 [2022-01-18 11:16:08,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=615, Invalid=2355, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:16:08,339 INFO L933 BasicCegarLoop]: 977 mSDtfsCounter, 2191 mSDsluCounter, 9819 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 10645 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:08,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2191 Valid, 10645 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:08,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50756 states. [2022-01-18 11:16:08,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50756 to 23719. [2022-01-18 11:16:08,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23719 states, 23718 states have (on average 2.8680748798380975) internal successors, (68025), 23718 states have internal predecessors, (68025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23719 states to 23719 states and 68025 transitions. [2022-01-18 11:16:08,819 INFO L78 Accepts]: Start accepts. Automaton has 23719 states and 68025 transitions. Word has length 263 [2022-01-18 11:16:08,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:08,819 INFO L470 AbstractCegarLoop]: Abstraction has 23719 states and 68025 transitions. [2022-01-18 11:16:08,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 23719 states and 68025 transitions. [2022-01-18 11:16:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:08,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:08,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:08,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 11:16:08,853 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:08,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1938638025, now seen corresponding path program 66 times [2022-01-18 11:16:08,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:08,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589475780] [2022-01-18 11:16:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:08,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:09,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:09,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589475780] [2022-01-18 11:16:09,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589475780] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:09,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:09,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:09,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678618094] [2022-01-18 11:16:09,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:09,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:09,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:09,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:09,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:09,023 INFO L87 Difference]: Start difference. First operand 23719 states and 68025 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:10,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:10,374 INFO L93 Difference]: Finished difference Result 54262 states and 153159 transitions. [2022-01-18 11:16:10,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:16:10,374 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:10,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:10,487 INFO L225 Difference]: With dead ends: 54262 [2022-01-18 11:16:10,488 INFO L226 Difference]: Without dead ends: 54262 [2022-01-18 11:16:10,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=640, Invalid=2440, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:16:10,491 INFO L933 BasicCegarLoop]: 1006 mSDtfsCounter, 2338 mSDsluCounter, 9809 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 10647 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:10,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2338 Valid, 10647 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:10,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54262 states. [2022-01-18 11:16:11,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54262 to 23647. [2022-01-18 11:16:11,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23647 states, 23646 states have (on average 2.867419436691195) internal successors, (67803), 23646 states have internal predecessors, (67803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:11,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23647 states to 23647 states and 67803 transitions. [2022-01-18 11:16:11,083 INFO L78 Accepts]: Start accepts. Automaton has 23647 states and 67803 transitions. Word has length 263 [2022-01-18 11:16:11,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:11,083 INFO L470 AbstractCegarLoop]: Abstraction has 23647 states and 67803 transitions. [2022-01-18 11:16:11,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:11,083 INFO L276 IsEmpty]: Start isEmpty. Operand 23647 states and 67803 transitions. [2022-01-18 11:16:11,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:11,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:11,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:11,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 11:16:11,118 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:11,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:11,118 INFO L85 PathProgramCache]: Analyzing trace with hash -340974427, now seen corresponding path program 67 times [2022-01-18 11:16:11,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:11,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736981055] [2022-01-18 11:16:11,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:11,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:11,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:11,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:11,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736981055] [2022-01-18 11:16:11,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736981055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:11,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:11,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:11,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020655408] [2022-01-18 11:16:11,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:11,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:11,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:11,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:11,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:11,288 INFO L87 Difference]: Start difference. First operand 23647 states and 67803 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:12,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:12,699 INFO L93 Difference]: Finished difference Result 65901 states and 186302 transitions. [2022-01-18 11:16:12,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:16:12,699 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:12,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:12,837 INFO L225 Difference]: With dead ends: 65901 [2022-01-18 11:16:12,837 INFO L226 Difference]: Without dead ends: 65901 [2022-01-18 11:16:12,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=612, Invalid=2358, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:16:12,839 INFO L933 BasicCegarLoop]: 986 mSDtfsCounter, 2645 mSDsluCounter, 9632 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2645 SdHoareTripleChecker+Valid, 10484 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:12,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2645 Valid, 10484 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:16:12,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65901 states. [2022-01-18 11:16:13,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65901 to 24019. [2022-01-18 11:16:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24019 states, 24018 states have (on average 2.8782579731867766) internal successors, (69130), 24018 states have internal predecessors, (69130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24019 states to 24019 states and 69130 transitions. [2022-01-18 11:16:13,497 INFO L78 Accepts]: Start accepts. Automaton has 24019 states and 69130 transitions. Word has length 263 [2022-01-18 11:16:13,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:13,497 INFO L470 AbstractCegarLoop]: Abstraction has 24019 states and 69130 transitions. [2022-01-18 11:16:13,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:13,498 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 69130 transitions. [2022-01-18 11:16:13,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:13,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:13,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:13,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 11:16:13,534 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:13,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:13,534 INFO L85 PathProgramCache]: Analyzing trace with hash 610995405, now seen corresponding path program 68 times [2022-01-18 11:16:13,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:13,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867345581] [2022-01-18 11:16:13,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:13,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:13,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:13,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867345581] [2022-01-18 11:16:13,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867345581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:13,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:13,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:13,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653493625] [2022-01-18 11:16:13,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:13,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:13,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:13,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:13,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:13,718 INFO L87 Difference]: Start difference. First operand 24019 states and 69130 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:15,106 INFO L93 Difference]: Finished difference Result 66396 states and 188029 transitions. [2022-01-18 11:16:15,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:16:15,107 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:15,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:15,242 INFO L225 Difference]: With dead ends: 66396 [2022-01-18 11:16:15,243 INFO L226 Difference]: Without dead ends: 66396 [2022-01-18 11:16:15,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=612, Invalid=2358, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:16:15,243 INFO L933 BasicCegarLoop]: 1058 mSDtfsCounter, 2634 mSDsluCounter, 10141 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2634 SdHoareTripleChecker+Valid, 11089 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:15,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2634 Valid, 11089 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:15,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66396 states. [2022-01-18 11:16:15,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66396 to 23691. [2022-01-18 11:16:15,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23691 states, 23690 states have (on average 2.8677078936260023) internal successors, (67936), 23690 states have internal predecessors, (67936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 67936 transitions. [2022-01-18 11:16:15,958 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 67936 transitions. Word has length 263 [2022-01-18 11:16:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:15,958 INFO L470 AbstractCegarLoop]: Abstraction has 23691 states and 67936 transitions. [2022-01-18 11:16:15,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 67936 transitions. [2022-01-18 11:16:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:15,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:15,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:15,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 11:16:15,993 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:15,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:15,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1855437787, now seen corresponding path program 69 times [2022-01-18 11:16:15,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:15,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356750019] [2022-01-18 11:16:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:15,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:16,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:16,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356750019] [2022-01-18 11:16:16,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356750019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:16,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:16,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:16,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771167769] [2022-01-18 11:16:16,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:16,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:16,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:16,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:16,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:16,168 INFO L87 Difference]: Start difference. First operand 23691 states and 67936 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:17,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:17,290 INFO L93 Difference]: Finished difference Result 50940 states and 144503 transitions. [2022-01-18 11:16:17,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:16:17,291 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:17,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:17,386 INFO L225 Difference]: With dead ends: 50940 [2022-01-18 11:16:17,387 INFO L226 Difference]: Without dead ends: 50940 [2022-01-18 11:16:17,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1947, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:16:17,387 INFO L933 BasicCegarLoop]: 904 mSDtfsCounter, 2163 mSDsluCounter, 8179 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2163 SdHoareTripleChecker+Valid, 8993 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:17,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2163 Valid, 8993 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:16:17,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50940 states. [2022-01-18 11:16:17,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50940 to 23659. [2022-01-18 11:16:17,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23659 states, 23658 states have (on average 2.86735987826528) internal successors, (67836), 23658 states have internal predecessors, (67836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:18,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23659 states to 23659 states and 67836 transitions. [2022-01-18 11:16:18,115 INFO L78 Accepts]: Start accepts. Automaton has 23659 states and 67836 transitions. Word has length 263 [2022-01-18 11:16:18,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:18,116 INFO L470 AbstractCegarLoop]: Abstraction has 23659 states and 67836 transitions. [2022-01-18 11:16:18,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:18,116 INFO L276 IsEmpty]: Start isEmpty. Operand 23659 states and 67836 transitions. [2022-01-18 11:16:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:18,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:18,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:18,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 11:16:18,146 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:18,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:18,147 INFO L85 PathProgramCache]: Analyzing trace with hash 382553125, now seen corresponding path program 70 times [2022-01-18 11:16:18,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:18,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977198838] [2022-01-18 11:16:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:18,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:18,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:18,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:18,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977198838] [2022-01-18 11:16:18,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977198838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:18,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:18,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:18,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788348310] [2022-01-18 11:16:18,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:18,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:18,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:18,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:18,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:18,314 INFO L87 Difference]: Start difference. First operand 23659 states and 67836 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:19,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:19,515 INFO L93 Difference]: Finished difference Result 66056 states and 186731 transitions. [2022-01-18 11:16:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:16:19,516 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:19,654 INFO L225 Difference]: With dead ends: 66056 [2022-01-18 11:16:19,654 INFO L226 Difference]: Without dead ends: 66056 [2022-01-18 11:16:19,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=553, Invalid=2099, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:16:19,655 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 2764 mSDsluCounter, 8656 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2764 SdHoareTripleChecker+Valid, 9515 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:19,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2764 Valid, 9515 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:19,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66056 states. [2022-01-18 11:16:20,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66056 to 24019. [2022-01-18 11:16:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24019 states, 24018 states have (on average 2.8782579731867766) internal successors, (69130), 24018 states have internal predecessors, (69130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:20,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24019 states to 24019 states and 69130 transitions. [2022-01-18 11:16:20,532 INFO L78 Accepts]: Start accepts. Automaton has 24019 states and 69130 transitions. Word has length 263 [2022-01-18 11:16:20,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:20,532 INFO L470 AbstractCegarLoop]: Abstraction has 24019 states and 69130 transitions. [2022-01-18 11:16:20,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:20,532 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 69130 transitions. [2022-01-18 11:16:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:20,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:20,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:20,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 11:16:20,568 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:20,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:20,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1334522957, now seen corresponding path program 71 times [2022-01-18 11:16:20,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:20,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814054572] [2022-01-18 11:16:20,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:20,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:20,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:20,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:20,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814054572] [2022-01-18 11:16:20,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814054572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:20,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:20,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:20,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030622633] [2022-01-18 11:16:20,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:20,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:20,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:20,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:20,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:20,742 INFO L87 Difference]: Start difference. First operand 24019 states and 69130 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:21,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:21,992 INFO L93 Difference]: Finished difference Result 66294 states and 187733 transitions. [2022-01-18 11:16:21,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:16:21,992 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:21,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:22,129 INFO L225 Difference]: With dead ends: 66294 [2022-01-18 11:16:22,129 INFO L226 Difference]: Without dead ends: 66294 [2022-01-18 11:16:22,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=598, Invalid=2264, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:16:22,130 INFO L933 BasicCegarLoop]: 991 mSDtfsCounter, 2785 mSDsluCounter, 8795 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 9712 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:22,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2785 Valid, 9712 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:22,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66294 states. [2022-01-18 11:16:22,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66294 to 23691. [2022-01-18 11:16:22,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23691 states, 23690 states have (on average 2.8677078936260023) internal successors, (67936), 23690 states have internal predecessors, (67936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:22,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 67936 transitions. [2022-01-18 11:16:22,935 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 67936 transitions. Word has length 263 [2022-01-18 11:16:22,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:22,935 INFO L470 AbstractCegarLoop]: Abstraction has 23691 states and 67936 transitions. [2022-01-18 11:16:22,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:22,935 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 67936 transitions. [2022-01-18 11:16:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:22,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:22,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:22,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 11:16:22,968 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:22,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash 640038027, now seen corresponding path program 72 times [2022-01-18 11:16:22,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:22,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181740952] [2022-01-18 11:16:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:22,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:23,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:23,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:23,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181740952] [2022-01-18 11:16:23,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181740952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:23,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:23,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:23,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015220227] [2022-01-18 11:16:23,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:23,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:23,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:23,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:23,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:23,133 INFO L87 Difference]: Start difference. First operand 23691 states and 67936 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:24,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:24,316 INFO L93 Difference]: Finished difference Result 51324 states and 145408 transitions. [2022-01-18 11:16:24,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:16:24,316 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:24,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:24,521 INFO L225 Difference]: With dead ends: 51324 [2022-01-18 11:16:24,521 INFO L226 Difference]: Without dead ends: 51324 [2022-01-18 11:16:24,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:16:24,521 INFO L933 BasicCegarLoop]: 896 mSDtfsCounter, 1950 mSDsluCounter, 8843 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 9623 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:24,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1950 Valid, 9623 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:16:24,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51324 states. [2022-01-18 11:16:24,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51324 to 23655. [2022-01-18 11:16:24,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23655 states, 23654 states have (on average 2.8673797243595165) internal successors, (67825), 23654 states have internal predecessors, (67825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:25,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23655 states to 23655 states and 67825 transitions. [2022-01-18 11:16:25,006 INFO L78 Accepts]: Start accepts. Automaton has 23655 states and 67825 transitions. Word has length 263 [2022-01-18 11:16:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:25,006 INFO L470 AbstractCegarLoop]: Abstraction has 23655 states and 67825 transitions. [2022-01-18 11:16:25,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:25,006 INFO L276 IsEmpty]: Start isEmpty. Operand 23655 states and 67825 transitions. [2022-01-18 11:16:25,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:25,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:25,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:25,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 11:16:25,147 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:25,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:25,148 INFO L85 PathProgramCache]: Analyzing trace with hash 128708423, now seen corresponding path program 73 times [2022-01-18 11:16:25,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:25,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942056523] [2022-01-18 11:16:25,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:25,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:25,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:25,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:25,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942056523] [2022-01-18 11:16:25,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942056523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:25,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:25,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:25,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423560494] [2022-01-18 11:16:25,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:25,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:25,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:25,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:25,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:25,337 INFO L87 Difference]: Start difference. First operand 23655 states and 67825 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:26,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:26,975 INFO L93 Difference]: Finished difference Result 79756 states and 224771 transitions. [2022-01-18 11:16:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:16:26,975 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:26,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:27,144 INFO L225 Difference]: With dead ends: 79756 [2022-01-18 11:16:27,144 INFO L226 Difference]: Without dead ends: 79756 [2022-01-18 11:16:27,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=748, Invalid=2792, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:16:27,145 INFO L933 BasicCegarLoop]: 1034 mSDtfsCounter, 3031 mSDsluCounter, 9840 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3031 SdHoareTripleChecker+Valid, 10737 SdHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:27,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3031 Valid, 10737 Invalid, 2011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:16:27,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79756 states. [2022-01-18 11:16:28,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79756 to 24087. [2022-01-18 11:16:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24087 states, 24086 states have (on average 2.8792244457361122) internal successors, (69349), 24086 states have internal predecessors, (69349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24087 states to 24087 states and 69349 transitions. [2022-01-18 11:16:28,078 INFO L78 Accepts]: Start accepts. Automaton has 24087 states and 69349 transitions. Word has length 263 [2022-01-18 11:16:28,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:28,079 INFO L470 AbstractCegarLoop]: Abstraction has 24087 states and 69349 transitions. [2022-01-18 11:16:28,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 24087 states and 69349 transitions. [2022-01-18 11:16:28,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:28,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:28,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:28,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 11:16:28,112 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:28,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:28,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1080678255, now seen corresponding path program 74 times [2022-01-18 11:16:28,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:28,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260822291] [2022-01-18 11:16:28,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:28,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:28,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:28,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260822291] [2022-01-18 11:16:28,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260822291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:28,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:28,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:28,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487010281] [2022-01-18 11:16:28,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:28,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:28,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:28,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:28,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:28,284 INFO L87 Difference]: Start difference. First operand 24087 states and 69349 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:29,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:29,891 INFO L93 Difference]: Finished difference Result 80110 states and 226175 transitions. [2022-01-18 11:16:29,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:16:29,892 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:29,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:30,042 INFO L225 Difference]: With dead ends: 80110 [2022-01-18 11:16:30,042 INFO L226 Difference]: Without dead ends: 80110 [2022-01-18 11:16:30,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=744, Invalid=2796, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:16:30,043 INFO L933 BasicCegarLoop]: 1121 mSDtfsCounter, 3113 mSDsluCounter, 10557 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3113 SdHoareTripleChecker+Valid, 11565 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:30,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3113 Valid, 11565 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:16:30,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80110 states. [2022-01-18 11:16:30,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80110 to 23751. [2022-01-18 11:16:30,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23751 states, 23750 states have (on average 2.8684210526315788) internal successors, (68125), 23750 states have internal predecessors, (68125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:30,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23751 states to 23751 states and 68125 transitions. [2022-01-18 11:16:30,890 INFO L78 Accepts]: Start accepts. Automaton has 23751 states and 68125 transitions. Word has length 263 [2022-01-18 11:16:30,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:30,890 INFO L470 AbstractCegarLoop]: Abstraction has 23751 states and 68125 transitions. [2022-01-18 11:16:30,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:30,890 INFO L276 IsEmpty]: Start isEmpty. Operand 23751 states and 68125 transitions. [2022-01-18 11:16:30,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:30,925 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:30,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:30,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 11:16:30,925 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:30,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:30,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1969846659, now seen corresponding path program 75 times [2022-01-18 11:16:30,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:30,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478446796] [2022-01-18 11:16:30,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:30,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:31,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:31,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:31,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478446796] [2022-01-18 11:16:31,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478446796] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:31,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:31,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:31,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956755075] [2022-01-18 11:16:31,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:31,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:31,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:31,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:31,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:31,099 INFO L87 Difference]: Start difference. First operand 23751 states and 68125 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:32,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:32,621 INFO L93 Difference]: Finished difference Result 64810 states and 183094 transitions. [2022-01-18 11:16:32,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:16:32,621 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:32,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:32,749 INFO L225 Difference]: With dead ends: 64810 [2022-01-18 11:16:32,749 INFO L226 Difference]: Without dead ends: 64810 [2022-01-18 11:16:32,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=621, Invalid=2349, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:16:32,892 INFO L933 BasicCegarLoop]: 967 mSDtfsCounter, 2481 mSDsluCounter, 9386 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 10252 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:32,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2481 Valid, 10252 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:16:32,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64810 states. [2022-01-18 11:16:33,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64810 to 23719. [2022-01-18 11:16:33,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23719 states, 23718 states have (on average 2.8680748798380975) internal successors, (68025), 23718 states have internal predecessors, (68025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23719 states to 23719 states and 68025 transitions. [2022-01-18 11:16:33,553 INFO L78 Accepts]: Start accepts. Automaton has 23719 states and 68025 transitions. Word has length 263 [2022-01-18 11:16:33,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:33,553 INFO L470 AbstractCegarLoop]: Abstraction has 23719 states and 68025 transitions. [2022-01-18 11:16:33,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:33,553 INFO L276 IsEmpty]: Start isEmpty. Operand 23719 states and 68025 transitions. [2022-01-18 11:16:33,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:33,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:33,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:33,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 11:16:33,586 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:33,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:33,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2010098535, now seen corresponding path program 76 times [2022-01-18 11:16:33,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:33,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884581638] [2022-01-18 11:16:33,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:33,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:33,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:33,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:33,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884581638] [2022-01-18 11:16:33,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884581638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:33,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:33,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:33,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775424222] [2022-01-18 11:16:33,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:33,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:33,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:33,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:33,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:33,769 INFO L87 Difference]: Start difference. First operand 23719 states and 68025 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:35,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:35,169 INFO L93 Difference]: Finished difference Result 67745 states and 190576 transitions. [2022-01-18 11:16:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:16:35,170 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:35,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:35,295 INFO L225 Difference]: With dead ends: 67745 [2022-01-18 11:16:35,296 INFO L226 Difference]: Without dead ends: 67745 [2022-01-18 11:16:35,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=649, Invalid=2431, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:16:35,296 INFO L933 BasicCegarLoop]: 1008 mSDtfsCounter, 2441 mSDsluCounter, 9053 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 9954 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:35,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2441 Valid, 9954 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:35,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67745 states. [2022-01-18 11:16:35,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67745 to 23631. [2022-01-18 11:16:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23631 states, 23630 states have (on average 2.8674989420228525) internal successors, (67759), 23630 states have internal predecessors, (67759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:36,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23631 states to 23631 states and 67759 transitions. [2022-01-18 11:16:36,044 INFO L78 Accepts]: Start accepts. Automaton has 23631 states and 67759 transitions. Word has length 263 [2022-01-18 11:16:36,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:36,044 INFO L470 AbstractCegarLoop]: Abstraction has 23631 states and 67759 transitions. [2022-01-18 11:16:36,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:36,044 INFO L276 IsEmpty]: Start isEmpty. Operand 23631 states and 67759 transitions. [2022-01-18 11:16:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:36,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:36,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:36,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 11:16:36,076 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:36,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:36,076 INFO L85 PathProgramCache]: Analyzing trace with hash -967463771, now seen corresponding path program 77 times [2022-01-18 11:16:36,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:36,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306659010] [2022-01-18 11:16:36,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:36,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:36,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:36,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:36,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306659010] [2022-01-18 11:16:36,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306659010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:36,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:36,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:16:36,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446918373] [2022-01-18 11:16:36,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:36,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:16:36,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:36,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:16:36,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:16:36,246 INFO L87 Difference]: Start difference. First operand 23631 states and 67759 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:37,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:37,477 INFO L93 Difference]: Finished difference Result 46617 states and 131681 transitions. [2022-01-18 11:16:37,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:16:37,477 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:37,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:37,565 INFO L225 Difference]: With dead ends: 46617 [2022-01-18 11:16:37,566 INFO L226 Difference]: Without dead ends: 46617 [2022-01-18 11:16:37,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=482, Invalid=2068, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:16:37,566 INFO L933 BasicCegarLoop]: 854 mSDtfsCounter, 2196 mSDsluCounter, 9671 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 10401 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:37,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2196 Valid, 10401 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:37,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46617 states. [2022-01-18 11:16:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46617 to 24007. [2022-01-18 11:16:38,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24007 states, 24006 states have (on average 2.8783220861451304) internal successors, (69097), 24006 states have internal predecessors, (69097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24007 states to 24007 states and 69097 transitions. [2022-01-18 11:16:38,233 INFO L78 Accepts]: Start accepts. Automaton has 24007 states and 69097 transitions. Word has length 263 [2022-01-18 11:16:38,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:38,233 INFO L470 AbstractCegarLoop]: Abstraction has 24007 states and 69097 transitions. [2022-01-18 11:16:38,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:38,233 INFO L276 IsEmpty]: Start isEmpty. Operand 24007 states and 69097 transitions. [2022-01-18 11:16:38,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:38,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:38,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:38,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 11:16:38,266 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:38,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:38,266 INFO L85 PathProgramCache]: Analyzing trace with hash -15493939, now seen corresponding path program 78 times [2022-01-18 11:16:38,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:38,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522687524] [2022-01-18 11:16:38,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:38,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:38,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:38,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522687524] [2022-01-18 11:16:38,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522687524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:38,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:38,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:38,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688677881] [2022-01-18 11:16:38,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:38,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:38,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:38,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:38,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:38,440 INFO L87 Difference]: Start difference. First operand 24007 states and 69097 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:39,627 INFO L93 Difference]: Finished difference Result 47355 states and 133988 transitions. [2022-01-18 11:16:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:16:39,628 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:39,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:39,718 INFO L225 Difference]: With dead ends: 47355 [2022-01-18 11:16:39,718 INFO L226 Difference]: Without dead ends: 47355 [2022-01-18 11:16:39,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=488, Invalid=1962, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:16:39,719 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 2392 mSDsluCounter, 9072 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2392 SdHoareTripleChecker+Valid, 9881 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:39,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2392 Valid, 9881 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:16:39,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47355 states. [2022-01-18 11:16:40,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47355 to 23679. [2022-01-18 11:16:40,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23679 states, 23678 states have (on average 2.867767547934792) internal successors, (67903), 23678 states have internal predecessors, (67903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:40,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23679 states to 23679 states and 67903 transitions. [2022-01-18 11:16:40,373 INFO L78 Accepts]: Start accepts. Automaton has 23679 states and 67903 transitions. Word has length 263 [2022-01-18 11:16:40,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:40,373 INFO L470 AbstractCegarLoop]: Abstraction has 23679 states and 67903 transitions. [2022-01-18 11:16:40,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:40,374 INFO L276 IsEmpty]: Start isEmpty. Operand 23679 states and 67903 transitions. [2022-01-18 11:16:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:40,409 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:40,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:40,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 11:16:40,409 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:40,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:40,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1228948443, now seen corresponding path program 79 times [2022-01-18 11:16:40,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:40,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137771651] [2022-01-18 11:16:40,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:40,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:40,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:40,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137771651] [2022-01-18 11:16:40,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137771651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:40,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:40,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:40,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656529194] [2022-01-18 11:16:40,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:40,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:40,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:40,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:40,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:40,583 INFO L87 Difference]: Start difference. First operand 23679 states and 67903 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:41,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:41,635 INFO L93 Difference]: Finished difference Result 32055 states and 90899 transitions. [2022-01-18 11:16:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:16:41,635 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:41,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:41,700 INFO L225 Difference]: With dead ends: 32055 [2022-01-18 11:16:41,700 INFO L226 Difference]: Without dead ends: 32055 [2022-01-18 11:16:41,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=391, Invalid=1589, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:16:41,701 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 1736 mSDsluCounter, 7075 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 7744 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:41,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1736 Valid, 7744 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:41,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32055 states. [2022-01-18 11:16:42,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32055 to 23647. [2022-01-18 11:16:42,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23647 states, 23646 states have (on average 2.867419436691195) internal successors, (67803), 23646 states have internal predecessors, (67803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:42,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23647 states to 23647 states and 67803 transitions. [2022-01-18 11:16:42,167 INFO L78 Accepts]: Start accepts. Automaton has 23647 states and 67803 transitions. Word has length 263 [2022-01-18 11:16:42,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:42,168 INFO L470 AbstractCegarLoop]: Abstraction has 23647 states and 67803 transitions. [2022-01-18 11:16:42,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:42,168 INFO L276 IsEmpty]: Start isEmpty. Operand 23647 states and 67803 transitions. [2022-01-18 11:16:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:42,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:42,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:42,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 11:16:42,204 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:42,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:42,205 INFO L85 PathProgramCache]: Analyzing trace with hash -243936219, now seen corresponding path program 80 times [2022-01-18 11:16:42,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:42,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60157238] [2022-01-18 11:16:42,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:42,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:42,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:42,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60157238] [2022-01-18 11:16:42,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60157238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:42,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:42,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:42,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71182286] [2022-01-18 11:16:42,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:42,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:42,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:42,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:42,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:42,498 INFO L87 Difference]: Start difference. First operand 23647 states and 67803 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:43,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:43,443 INFO L93 Difference]: Finished difference Result 46436 states and 131194 transitions. [2022-01-18 11:16:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 11:16:43,443 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:43,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:43,538 INFO L225 Difference]: With dead ends: 46436 [2022-01-18 11:16:43,539 INFO L226 Difference]: Without dead ends: 46436 [2022-01-18 11:16:43,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=437, Invalid=1725, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:16:43,539 INFO L933 BasicCegarLoop]: 785 mSDtfsCounter, 2279 mSDsluCounter, 7161 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 7858 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:43,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2279 Valid, 7858 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:16:43,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46436 states. [2022-01-18 11:16:44,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46436 to 24007. [2022-01-18 11:16:44,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24007 states, 24006 states have (on average 2.8783220861451304) internal successors, (69097), 24006 states have internal predecessors, (69097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:44,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24007 states to 24007 states and 69097 transitions. [2022-01-18 11:16:44,146 INFO L78 Accepts]: Start accepts. Automaton has 24007 states and 69097 transitions. Word has length 263 [2022-01-18 11:16:44,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:44,146 INFO L470 AbstractCegarLoop]: Abstraction has 24007 states and 69097 transitions. [2022-01-18 11:16:44,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:44,146 INFO L276 IsEmpty]: Start isEmpty. Operand 24007 states and 69097 transitions. [2022-01-18 11:16:44,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:44,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:44,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:44,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 11:16:44,180 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:44,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:44,180 INFO L85 PathProgramCache]: Analyzing trace with hash 708033613, now seen corresponding path program 81 times [2022-01-18 11:16:44,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:44,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492463024] [2022-01-18 11:16:44,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:44,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:44,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:44,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492463024] [2022-01-18 11:16:44,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492463024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:44,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:44,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:44,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351014563] [2022-01-18 11:16:44,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:44,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:44,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:44,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:44,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:44,344 INFO L87 Difference]: Start difference. First operand 24007 states and 69097 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:45,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:45,305 INFO L93 Difference]: Finished difference Result 46917 states and 132776 transitions. [2022-01-18 11:16:45,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:16:45,305 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:45,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:45,385 INFO L225 Difference]: With dead ends: 46917 [2022-01-18 11:16:45,385 INFO L226 Difference]: Without dead ends: 46917 [2022-01-18 11:16:45,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=457, Invalid=1799, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:16:45,386 INFO L933 BasicCegarLoop]: 795 mSDtfsCounter, 2360 mSDsluCounter, 7208 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 7944 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:45,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 7944 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:16:45,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46917 states. [2022-01-18 11:16:45,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46917 to 23679. [2022-01-18 11:16:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23679 states, 23678 states have (on average 2.867767547934792) internal successors, (67903), 23678 states have internal predecessors, (67903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:46,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23679 states to 23679 states and 67903 transitions. [2022-01-18 11:16:46,068 INFO L78 Accepts]: Start accepts. Automaton has 23679 states and 67903 transitions. Word has length 263 [2022-01-18 11:16:46,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:46,069 INFO L470 AbstractCegarLoop]: Abstraction has 23679 states and 67903 transitions. [2022-01-18 11:16:46,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:46,069 INFO L276 IsEmpty]: Start isEmpty. Operand 23679 states and 67903 transitions. [2022-01-18 11:16:46,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:46,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:46,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:46,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 11:16:46,100 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:46,101 INFO L85 PathProgramCache]: Analyzing trace with hash 13548683, now seen corresponding path program 82 times [2022-01-18 11:16:46,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:46,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407165051] [2022-01-18 11:16:46,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:46,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:46,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:46,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:46,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407165051] [2022-01-18 11:16:46,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407165051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:46,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:46,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:16:46,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108567960] [2022-01-18 11:16:46,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:46,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:16:46,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:46,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:16:46,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:16:46,270 INFO L87 Difference]: Start difference. First operand 23679 states and 67903 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:47,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:47,173 INFO L93 Difference]: Finished difference Result 31704 states and 89871 transitions. [2022-01-18 11:16:47,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:16:47,174 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:47,232 INFO L225 Difference]: With dead ends: 31704 [2022-01-18 11:16:47,232 INFO L226 Difference]: Without dead ends: 31704 [2022-01-18 11:16:47,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=374, Invalid=1606, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:16:47,233 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 1937 mSDsluCounter, 7685 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 8272 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:47,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1937 Valid, 8272 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:16:47,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31704 states. [2022-01-18 11:16:47,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31704 to 23643. [2022-01-18 11:16:47,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23643 states, 23642 states have (on average 2.8674393029354537) internal successors, (67792), 23642 states have internal predecessors, (67792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:47,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23643 states to 23643 states and 67792 transitions. [2022-01-18 11:16:47,695 INFO L78 Accepts]: Start accepts. Automaton has 23643 states and 67792 transitions. Word has length 263 [2022-01-18 11:16:47,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:47,695 INFO L470 AbstractCegarLoop]: Abstraction has 23643 states and 67792 transitions. [2022-01-18 11:16:47,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:47,696 INFO L276 IsEmpty]: Start isEmpty. Operand 23643 states and 67792 transitions. [2022-01-18 11:16:47,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:47,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:47,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:47,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 11:16:47,727 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:47,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:47,727 INFO L85 PathProgramCache]: Analyzing trace with hash -497780921, now seen corresponding path program 83 times [2022-01-18 11:16:47,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:47,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436518806] [2022-01-18 11:16:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:47,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:47,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:47,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:47,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436518806] [2022-01-18 11:16:47,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436518806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:47,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:47,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:16:47,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344964636] [2022-01-18 11:16:47,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:47,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:16:47,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:47,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:16:47,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:16:47,905 INFO L87 Difference]: Start difference. First operand 23643 states and 67792 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:49,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:49,398 INFO L93 Difference]: Finished difference Result 63636 states and 179486 transitions. [2022-01-18 11:16:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:16:49,399 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:49,518 INFO L225 Difference]: With dead ends: 63636 [2022-01-18 11:16:49,519 INFO L226 Difference]: Without dead ends: 63636 [2022-01-18 11:16:49,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=601, Invalid=2479, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:16:49,519 INFO L933 BasicCegarLoop]: 987 mSDtfsCounter, 2315 mSDsluCounter, 10154 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2315 SdHoareTripleChecker+Valid, 11004 SdHoareTripleChecker+Invalid, 2048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:49,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2315 Valid, 11004 Invalid, 2048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:16:49,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63636 states. [2022-01-18 11:16:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63636 to 24075. [2022-01-18 11:16:50,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24075 states, 24074 states have (on average 2.8792888593503365) internal successors, (69316), 24074 states have internal predecessors, (69316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:50,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24075 states to 24075 states and 69316 transitions. [2022-01-18 11:16:50,326 INFO L78 Accepts]: Start accepts. Automaton has 24075 states and 69316 transitions. Word has length 263 [2022-01-18 11:16:50,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:50,327 INFO L470 AbstractCegarLoop]: Abstraction has 24075 states and 69316 transitions. [2022-01-18 11:16:50,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:50,327 INFO L276 IsEmpty]: Start isEmpty. Operand 24075 states and 69316 transitions. [2022-01-18 11:16:50,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:50,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:50,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:50,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 11:16:50,364 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:50,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash 454188911, now seen corresponding path program 84 times [2022-01-18 11:16:50,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:50,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097684252] [2022-01-18 11:16:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:50,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:50,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:50,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097684252] [2022-01-18 11:16:50,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097684252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:50,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:50,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:50,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102656282] [2022-01-18 11:16:50,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:50,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:50,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:50,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:50,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:50,539 INFO L87 Difference]: Start difference. First operand 24075 states and 69316 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:52,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:52,052 INFO L93 Difference]: Finished difference Result 64293 states and 181631 transitions. [2022-01-18 11:16:52,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:16:52,053 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:52,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:52,186 INFO L225 Difference]: With dead ends: 64293 [2022-01-18 11:16:52,186 INFO L226 Difference]: Without dead ends: 64293 [2022-01-18 11:16:52,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=608, Invalid=2362, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:16:52,187 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 2239 mSDsluCounter, 10628 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2239 SdHoareTripleChecker+Valid, 11574 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:52,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2239 Valid, 11574 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:52,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64293 states. [2022-01-18 11:16:52,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64293 to 23739. [2022-01-18 11:16:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23739 states, 23738 states have (on average 2.8684809166736875) internal successors, (68092), 23738 states have internal predecessors, (68092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:52,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23739 states to 23739 states and 68092 transitions. [2022-01-18 11:16:52,945 INFO L78 Accepts]: Start accepts. Automaton has 23739 states and 68092 transitions. Word has length 263 [2022-01-18 11:16:52,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:52,946 INFO L470 AbstractCegarLoop]: Abstraction has 23739 states and 68092 transitions. [2022-01-18 11:16:52,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:52,946 INFO L276 IsEmpty]: Start isEmpty. Operand 23739 states and 68092 transitions. [2022-01-18 11:16:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:52,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:52,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:52,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 11:16:52,977 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:52,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:52,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1698631293, now seen corresponding path program 85 times [2022-01-18 11:16:52,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:52,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921892475] [2022-01-18 11:16:52,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:52,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:53,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:53,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921892475] [2022-01-18 11:16:53,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921892475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:53,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:53,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:53,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866680317] [2022-01-18 11:16:53,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:53,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:53,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:53,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:53,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:53,147 INFO L87 Difference]: Start difference. First operand 23739 states and 68092 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:54,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:54,180 INFO L93 Difference]: Finished difference Result 48993 states and 138550 transitions. [2022-01-18 11:16:54,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:16:54,181 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:54,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:54,267 INFO L225 Difference]: With dead ends: 48993 [2022-01-18 11:16:54,267 INFO L226 Difference]: Without dead ends: 48993 [2022-01-18 11:16:54,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=497, Invalid=1953, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:16:54,268 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 2335 mSDsluCounter, 8795 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2335 SdHoareTripleChecker+Valid, 9600 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:54,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2335 Valid, 9600 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1618 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:16:54,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48993 states. [2022-01-18 11:16:54,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48993 to 23707. [2022-01-18 11:16:54,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23707 states, 23706 states have (on average 2.868134649455834) internal successors, (67992), 23706 states have internal predecessors, (67992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:54,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23707 states to 23707 states and 67992 transitions. [2022-01-18 11:16:54,942 INFO L78 Accepts]: Start accepts. Automaton has 23707 states and 67992 transitions. Word has length 263 [2022-01-18 11:16:54,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:54,943 INFO L470 AbstractCegarLoop]: Abstraction has 23707 states and 67992 transitions. [2022-01-18 11:16:54,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:54,943 INFO L276 IsEmpty]: Start isEmpty. Operand 23707 states and 67992 transitions. [2022-01-18 11:16:54,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:54,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:54,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:54,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 11:16:54,976 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:54,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:54,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1658379417, now seen corresponding path program 86 times [2022-01-18 11:16:54,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:54,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859447927] [2022-01-18 11:16:54,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:54,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:55,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:55,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:55,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859447927] [2022-01-18 11:16:55,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859447927] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:55,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:55,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:55,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192500348] [2022-01-18 11:16:55,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:55,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:55,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:55,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:55,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:55,179 INFO L87 Difference]: Start difference. First operand 23707 states and 67992 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:56,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:56,330 INFO L93 Difference]: Finished difference Result 51928 states and 146032 transitions. [2022-01-18 11:16:56,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:16:56,330 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:56,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:56,424 INFO L225 Difference]: With dead ends: 51928 [2022-01-18 11:16:56,425 INFO L226 Difference]: Without dead ends: 51928 [2022-01-18 11:16:56,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=521, Invalid=2029, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:16:56,425 INFO L933 BasicCegarLoop]: 944 mSDtfsCounter, 2113 mSDsluCounter, 8362 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2113 SdHoareTripleChecker+Valid, 9204 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:56,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2113 Valid, 9204 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:16:56,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51928 states. [2022-01-18 11:16:57,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51928 to 23635. [2022-01-18 11:16:57,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23635 states, 23634 states have (on average 2.8674790555978675) internal successors, (67770), 23634 states have internal predecessors, (67770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:57,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23635 states to 23635 states and 67770 transitions. [2022-01-18 11:16:57,086 INFO L78 Accepts]: Start accepts. Automaton has 23635 states and 67770 transitions. Word has length 263 [2022-01-18 11:16:57,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:57,086 INFO L470 AbstractCegarLoop]: Abstraction has 23635 states and 67770 transitions. [2022-01-18 11:16:57,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:57,086 INFO L276 IsEmpty]: Start isEmpty. Operand 23635 states and 67770 transitions. [2022-01-18 11:16:57,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:57,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:57,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:57,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 11:16:57,123 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:57,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash -104128151, now seen corresponding path program 87 times [2022-01-18 11:16:57,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:57,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896651178] [2022-01-18 11:16:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:57,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:57,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:57,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896651178] [2022-01-18 11:16:57,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896651178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:57,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:57,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:57,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328868765] [2022-01-18 11:16:57,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:57,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:57,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:57,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:57,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:57,296 INFO L87 Difference]: Start difference. First operand 23635 states and 67770 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:58,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:16:58,335 INFO L93 Difference]: Finished difference Result 46447 states and 131193 transitions. [2022-01-18 11:16:58,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:16:58,336 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:16:58,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:16:58,427 INFO L225 Difference]: With dead ends: 46447 [2022-01-18 11:16:58,427 INFO L226 Difference]: Without dead ends: 46447 [2022-01-18 11:16:58,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=510, Invalid=1940, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:16:58,427 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 2163 mSDsluCounter, 7662 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2163 SdHoareTripleChecker+Valid, 8402 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:16:58,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2163 Valid, 8402 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:16:58,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46447 states. [2022-01-18 11:16:58,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46447 to 24103. [2022-01-18 11:16:59,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24103 states, 24102 states have (on average 2.879802506016098) internal successors, (69409), 24102 states have internal predecessors, (69409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:59,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24103 states to 24103 states and 69409 transitions. [2022-01-18 11:16:59,058 INFO L78 Accepts]: Start accepts. Automaton has 24103 states and 69409 transitions. Word has length 263 [2022-01-18 11:16:59,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:16:59,059 INFO L470 AbstractCegarLoop]: Abstraction has 24103 states and 69409 transitions. [2022-01-18 11:16:59,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:16:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand 24103 states and 69409 transitions. [2022-01-18 11:16:59,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:16:59,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:16:59,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:16:59,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 11:16:59,091 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:16:59,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:16:59,091 INFO L85 PathProgramCache]: Analyzing trace with hash 847841681, now seen corresponding path program 88 times [2022-01-18 11:16:59,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:16:59,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099281637] [2022-01-18 11:16:59,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:16:59,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:16:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:16:59,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:16:59,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:16:59,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099281637] [2022-01-18 11:16:59,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099281637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:16:59,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:16:59,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:16:59,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801441879] [2022-01-18 11:16:59,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:16:59,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:16:59,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:16:59,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:16:59,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:16:59,283 INFO L87 Difference]: Start difference. First operand 24103 states and 69409 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:00,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:00,376 INFO L93 Difference]: Finished difference Result 47191 states and 133512 transitions. [2022-01-18 11:17:00,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 11:17:00,376 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:00,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:00,457 INFO L225 Difference]: With dead ends: 47191 [2022-01-18 11:17:00,457 INFO L226 Difference]: Without dead ends: 47191 [2022-01-18 11:17:00,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=444, Invalid=1718, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:17:00,458 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 2118 mSDsluCounter, 8357 mSDsCounter, 0 mSdLazyCounter, 1535 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 9128 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:00,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2118 Valid, 9128 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1535 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:00,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47191 states. [2022-01-18 11:17:00,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47191 to 23763. [2022-01-18 11:17:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23763 states, 23762 states have (on average 2.8688662570490697) internal successors, (68170), 23762 states have internal predecessors, (68170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:01,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23763 states to 23763 states and 68170 transitions. [2022-01-18 11:17:01,037 INFO L78 Accepts]: Start accepts. Automaton has 23763 states and 68170 transitions. Word has length 263 [2022-01-18 11:17:01,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:01,037 INFO L470 AbstractCegarLoop]: Abstraction has 23763 states and 68170 transitions. [2022-01-18 11:17:01,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:01,038 INFO L276 IsEmpty]: Start isEmpty. Operand 23763 states and 68170 transitions. [2022-01-18 11:17:01,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:01,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:01,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:01,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 11:17:01,131 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:01,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:01,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2092284063, now seen corresponding path program 89 times [2022-01-18 11:17:01,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:01,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534939713] [2022-01-18 11:17:01,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:01,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:01,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:01,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534939713] [2022-01-18 11:17:01,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534939713] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:01,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:01,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:01,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431989657] [2022-01-18 11:17:01,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:01,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:01,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:01,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:01,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:01,310 INFO L87 Difference]: Start difference. First operand 23763 states and 68170 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:02,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:02,288 INFO L93 Difference]: Finished difference Result 47758 states and 135141 transitions. [2022-01-18 11:17:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:17:02,289 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:02,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:02,373 INFO L225 Difference]: With dead ends: 47758 [2022-01-18 11:17:02,373 INFO L226 Difference]: Without dead ends: 47758 [2022-01-18 11:17:02,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=424, Invalid=1646, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:17:02,374 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 1874 mSDsluCounter, 7649 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 8397 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:02,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1874 Valid, 8397 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:02,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47758 states. [2022-01-18 11:17:02,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47758 to 23731. [2022-01-18 11:17:02,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23731 states, 23730 states have (on average 2.8685208596713023) internal successors, (68070), 23730 states have internal predecessors, (68070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:02,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23731 states to 23731 states and 68070 transitions. [2022-01-18 11:17:02,977 INFO L78 Accepts]: Start accepts. Automaton has 23731 states and 68070 transitions. Word has length 263 [2022-01-18 11:17:02,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:02,977 INFO L470 AbstractCegarLoop]: Abstraction has 23731 states and 68070 transitions. [2022-01-18 11:17:02,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:02,977 INFO L276 IsEmpty]: Start isEmpty. Operand 23731 states and 68070 transitions. [2022-01-18 11:17:03,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:03,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:03,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:03,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 11:17:03,011 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:03,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:03,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2052032187, now seen corresponding path program 90 times [2022-01-18 11:17:03,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:03,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797406467] [2022-01-18 11:17:03,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:03,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:03,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:03,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:03,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797406467] [2022-01-18 11:17:03,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797406467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:03,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:03,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:03,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220603616] [2022-01-18 11:17:03,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:03,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:03,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:03,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:03,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:03,187 INFO L87 Difference]: Start difference. First operand 23731 states and 68070 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:04,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:04,207 INFO L93 Difference]: Finished difference Result 51651 states and 145260 transitions. [2022-01-18 11:17:04,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:17:04,207 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:04,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:04,312 INFO L225 Difference]: With dead ends: 51651 [2022-01-18 11:17:04,312 INFO L226 Difference]: Without dead ends: 51651 [2022-01-18 11:17:04,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=470, Invalid=1786, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:17:04,313 INFO L933 BasicCegarLoop]: 851 mSDtfsCounter, 1986 mSDsluCounter, 8406 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 9158 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:04,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1986 Valid, 9158 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:04,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51651 states. [2022-01-18 11:17:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51651 to 23667. [2022-01-18 11:17:04,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23667 states, 23666 states have (on average 2.8678272627397954) internal successors, (67870), 23666 states have internal predecessors, (67870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23667 states to 23667 states and 67870 transitions. [2022-01-18 11:17:05,022 INFO L78 Accepts]: Start accepts. Automaton has 23667 states and 67870 transitions. Word has length 263 [2022-01-18 11:17:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:05,023 INFO L470 AbstractCegarLoop]: Abstraction has 23667 states and 67870 transitions. [2022-01-18 11:17:05,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand 23667 states and 67870 transitions. [2022-01-18 11:17:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:05,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:05,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:05,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 11:17:05,056 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:05,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:05,057 INFO L85 PathProgramCache]: Analyzing trace with hash -509112071, now seen corresponding path program 91 times [2022-01-18 11:17:05,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:05,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997926838] [2022-01-18 11:17:05,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:05,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:05,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:05,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997926838] [2022-01-18 11:17:05,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997926838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:05,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:05,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:05,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62873493] [2022-01-18 11:17:05,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:05,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:05,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:05,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:05,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:05,240 INFO L87 Difference]: Start difference. First operand 23667 states and 67870 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:06,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:06,046 INFO L93 Difference]: Finished difference Result 31957 states and 90361 transitions. [2022-01-18 11:17:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:17:06,046 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:06,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:06,102 INFO L225 Difference]: With dead ends: 31957 [2022-01-18 11:17:06,103 INFO L226 Difference]: Without dead ends: 31957 [2022-01-18 11:17:06,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=404, Invalid=1576, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:17:06,103 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 1825 mSDsluCounter, 6251 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1825 SdHoareTripleChecker+Valid, 6856 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:06,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1825 Valid, 6856 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:17:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31957 states. [2022-01-18 11:17:06,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31957 to 23623. [2022-01-18 11:17:06,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23623 states, 23622 states have (on average 2.86753873507747) internal successors, (67737), 23622 states have internal predecessors, (67737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23623 states to 23623 states and 67737 transitions. [2022-01-18 11:17:06,683 INFO L78 Accepts]: Start accepts. Automaton has 23623 states and 67737 transitions. Word has length 263 [2022-01-18 11:17:06,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:06,683 INFO L470 AbstractCegarLoop]: Abstraction has 23623 states and 67737 transitions. [2022-01-18 11:17:06,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:06,683 INFO L276 IsEmpty]: Start isEmpty. Operand 23623 states and 67737 transitions. [2022-01-18 11:17:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:06,716 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:06,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:06,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 11:17:06,717 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:06,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1465519195, now seen corresponding path program 92 times [2022-01-18 11:17:06,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:06,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989807633] [2022-01-18 11:17:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:06,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:06,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:06,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989807633] [2022-01-18 11:17:06,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989807633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:06,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:06,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:06,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012896075] [2022-01-18 11:17:06,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:06,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:06,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:06,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:06,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:06,886 INFO L87 Difference]: Start difference. First operand 23623 states and 67737 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:08,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:08,223 INFO L93 Difference]: Finished difference Result 62677 states and 176813 transitions. [2022-01-18 11:17:08,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:17:08,224 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:08,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:08,345 INFO L225 Difference]: With dead ends: 62677 [2022-01-18 11:17:08,345 INFO L226 Difference]: Without dead ends: 62677 [2022-01-18 11:17:08,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=545, Invalid=2005, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:17:08,345 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 2579 mSDsluCounter, 7813 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 8543 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:08,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2579 Valid, 8543 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1604 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:08,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62677 states. [2022-01-18 11:17:09,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62677 to 24019. [2022-01-18 11:17:09,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24019 states, 24018 states have (on average 2.8782579731867766) internal successors, (69130), 24018 states have internal predecessors, (69130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:09,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24019 states to 24019 states and 69130 transitions. [2022-01-18 11:17:09,116 INFO L78 Accepts]: Start accepts. Automaton has 24019 states and 69130 transitions. Word has length 263 [2022-01-18 11:17:09,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:09,117 INFO L470 AbstractCegarLoop]: Abstraction has 24019 states and 69130 transitions. [2022-01-18 11:17:09,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:09,117 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 69130 transitions. [2022-01-18 11:17:09,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:09,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:09,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:09,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 11:17:09,153 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:09,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash -513549363, now seen corresponding path program 93 times [2022-01-18 11:17:09,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:09,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045904256] [2022-01-18 11:17:09,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:09,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:09,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:09,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045904256] [2022-01-18 11:17:09,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045904256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:09,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:09,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:09,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313233048] [2022-01-18 11:17:09,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:09,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:09,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:09,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:09,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:09,326 INFO L87 Difference]: Start difference. First operand 24019 states and 69130 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:10,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:10,452 INFO L93 Difference]: Finished difference Result 63232 states and 178701 transitions. [2022-01-18 11:17:10,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:17:10,452 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:10,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:10,569 INFO L225 Difference]: With dead ends: 63232 [2022-01-18 11:17:10,570 INFO L226 Difference]: Without dead ends: 63232 [2022-01-18 11:17:10,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=562, Invalid=2090, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:17:10,570 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 2705 mSDsluCounter, 7519 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2705 SdHoareTripleChecker+Valid, 8323 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:10,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2705 Valid, 8323 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:10,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63232 states. [2022-01-18 11:17:11,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63232 to 23691. [2022-01-18 11:17:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23691 states, 23690 states have (on average 2.8677078936260023) internal successors, (67936), 23690 states have internal predecessors, (67936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:11,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 67936 transitions. [2022-01-18 11:17:11,422 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 67936 transitions. Word has length 263 [2022-01-18 11:17:11,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:11,422 INFO L470 AbstractCegarLoop]: Abstraction has 23691 states and 67936 transitions. [2022-01-18 11:17:11,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:11,423 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 67936 transitions. [2022-01-18 11:17:11,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:11,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:11,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:11,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 11:17:11,458 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:11,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:11,459 INFO L85 PathProgramCache]: Analyzing trace with hash 730893019, now seen corresponding path program 94 times [2022-01-18 11:17:11,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:11,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070531099] [2022-01-18 11:17:11,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:11,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:11,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:11,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070531099] [2022-01-18 11:17:11,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070531099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:11,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:11,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:11,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278536697] [2022-01-18 11:17:11,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:11,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:11,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:11,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:11,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:11,654 INFO L87 Difference]: Start difference. First operand 23691 states and 67936 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:12,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:12,793 INFO L93 Difference]: Finished difference Result 50220 states and 142504 transitions. [2022-01-18 11:17:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:17:12,793 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:12,894 INFO L225 Difference]: With dead ends: 50220 [2022-01-18 11:17:12,895 INFO L226 Difference]: Without dead ends: 50220 [2022-01-18 11:17:12,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=498, Invalid=1854, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:17:12,895 INFO L933 BasicCegarLoop]: 789 mSDtfsCounter, 2161 mSDsluCounter, 7414 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 8121 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:12,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2161 Valid, 8121 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:12,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50220 states. [2022-01-18 11:17:13,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50220 to 23659. [2022-01-18 11:17:13,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23659 states, 23658 states have (on average 2.86735987826528) internal successors, (67836), 23658 states have internal predecessors, (67836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:13,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23659 states to 23659 states and 67836 transitions. [2022-01-18 11:17:13,644 INFO L78 Accepts]: Start accepts. Automaton has 23659 states and 67836 transitions. Word has length 263 [2022-01-18 11:17:13,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:13,644 INFO L470 AbstractCegarLoop]: Abstraction has 23659 states and 67836 transitions. [2022-01-18 11:17:13,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:13,645 INFO L276 IsEmpty]: Start isEmpty. Operand 23659 states and 67836 transitions. [2022-01-18 11:17:13,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:13,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:13,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:13,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 11:17:13,680 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:13,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:13,680 INFO L85 PathProgramCache]: Analyzing trace with hash -741991643, now seen corresponding path program 95 times [2022-01-18 11:17:13,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:13,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568371244] [2022-01-18 11:17:13,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:13,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:13,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:13,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568371244] [2022-01-18 11:17:13,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568371244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:13,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:13,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:13,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41946649] [2022-01-18 11:17:13,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:13,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:13,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:13,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:13,861 INFO L87 Difference]: Start difference. First operand 23659 states and 67836 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:15,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:15,067 INFO L93 Difference]: Finished difference Result 65492 states and 185180 transitions. [2022-01-18 11:17:15,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:17:15,067 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:15,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:15,205 INFO L225 Difference]: With dead ends: 65492 [2022-01-18 11:17:15,205 INFO L226 Difference]: Without dead ends: 65492 [2022-01-18 11:17:15,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=559, Invalid=2093, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:17:15,208 INFO L933 BasicCegarLoop]: 915 mSDtfsCounter, 2543 mSDsluCounter, 8353 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 9163 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:15,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2543 Valid, 9163 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:17:15,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65492 states. [2022-01-18 11:17:15,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65492 to 24019. [2022-01-18 11:17:15,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24019 states, 24018 states have (on average 2.8782579731867766) internal successors, (69130), 24018 states have internal predecessors, (69130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:15,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24019 states to 24019 states and 69130 transitions. [2022-01-18 11:17:15,992 INFO L78 Accepts]: Start accepts. Automaton has 24019 states and 69130 transitions. Word has length 263 [2022-01-18 11:17:15,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:15,992 INFO L470 AbstractCegarLoop]: Abstraction has 24019 states and 69130 transitions. [2022-01-18 11:17:15,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:15,993 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 69130 transitions. [2022-01-18 11:17:16,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:16,027 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:16,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:16,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 11:17:16,027 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:16,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash 209978189, now seen corresponding path program 96 times [2022-01-18 11:17:16,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:16,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486992837] [2022-01-18 11:17:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:16,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:16,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:16,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486992837] [2022-01-18 11:17:16,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486992837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:16,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:16,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:16,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044575491] [2022-01-18 11:17:16,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:16,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:16,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:16,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:16,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:16,219 INFO L87 Difference]: Start difference. First operand 24019 states and 69130 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:17,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:17,583 INFO L93 Difference]: Finished difference Result 65850 states and 186504 transitions. [2022-01-18 11:17:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:17:17,583 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:17,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:17,706 INFO L225 Difference]: With dead ends: 65850 [2022-01-18 11:17:17,706 INFO L226 Difference]: Without dead ends: 65850 [2022-01-18 11:17:17,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=621, Invalid=2349, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:17:17,706 INFO L933 BasicCegarLoop]: 921 mSDtfsCounter, 2688 mSDsluCounter, 7658 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 8512 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:17,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2688 Valid, 8512 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:17,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65850 states. [2022-01-18 11:17:18,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65850 to 23691. [2022-01-18 11:17:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23691 states, 23690 states have (on average 2.8677078936260023) internal successors, (67936), 23690 states have internal predecessors, (67936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:18,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 67936 transitions. [2022-01-18 11:17:18,481 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 67936 transitions. Word has length 263 [2022-01-18 11:17:18,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:18,481 INFO L470 AbstractCegarLoop]: Abstraction has 23691 states and 67936 transitions. [2022-01-18 11:17:18,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:18,481 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 67936 transitions. [2022-01-18 11:17:18,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:18,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:18,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:18,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 11:17:18,512 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:18,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:18,513 INFO L85 PathProgramCache]: Analyzing trace with hash -484506741, now seen corresponding path program 97 times [2022-01-18 11:17:18,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:18,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846433500] [2022-01-18 11:17:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:18,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:18,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:18,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846433500] [2022-01-18 11:17:18,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846433500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:18,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:18,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:18,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492277269] [2022-01-18 11:17:18,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:18,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:18,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:18,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:18,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:18,698 INFO L87 Difference]: Start difference. First operand 23691 states and 67936 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:19,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:19,623 INFO L93 Difference]: Finished difference Result 50704 states and 143707 transitions. [2022-01-18 11:17:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 11:17:19,623 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:19,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:19,724 INFO L225 Difference]: With dead ends: 50704 [2022-01-18 11:17:19,724 INFO L226 Difference]: Without dead ends: 50704 [2022-01-18 11:17:19,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=450, Invalid=1712, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:17:19,724 INFO L933 BasicCegarLoop]: 841 mSDtfsCounter, 2127 mSDsluCounter, 7062 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 7809 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:19,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2127 Valid, 7809 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:17:19,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50704 states. [2022-01-18 11:17:20,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50704 to 23655. [2022-01-18 11:17:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23655 states, 23654 states have (on average 2.8673797243595165) internal successors, (67825), 23654 states have internal predecessors, (67825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:20,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23655 states to 23655 states and 67825 transitions. [2022-01-18 11:17:20,453 INFO L78 Accepts]: Start accepts. Automaton has 23655 states and 67825 transitions. Word has length 263 [2022-01-18 11:17:20,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:20,453 INFO L470 AbstractCegarLoop]: Abstraction has 23655 states and 67825 transitions. [2022-01-18 11:17:20,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:20,453 INFO L276 IsEmpty]: Start isEmpty. Operand 23655 states and 67825 transitions. [2022-01-18 11:17:20,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:20,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:20,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:20,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 11:17:20,489 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:20,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:20,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1636726471, now seen corresponding path program 98 times [2022-01-18 11:17:20,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:20,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633280515] [2022-01-18 11:17:20,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:20,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:20,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:20,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633280515] [2022-01-18 11:17:20,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633280515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:20,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:20,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:20,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774456826] [2022-01-18 11:17:20,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:20,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:20,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:20,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:20,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:20,675 INFO L87 Difference]: Start difference. First operand 23655 states and 67825 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:22,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:22,233 INFO L93 Difference]: Finished difference Result 80606 states and 227728 transitions. [2022-01-18 11:17:22,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:17:22,233 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:22,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:22,399 INFO L225 Difference]: With dead ends: 80606 [2022-01-18 11:17:22,399 INFO L226 Difference]: Without dead ends: 80606 [2022-01-18 11:17:22,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=692, Invalid=2500, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:17:22,399 INFO L933 BasicCegarLoop]: 981 mSDtfsCounter, 3066 mSDsluCounter, 9519 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3066 SdHoareTripleChecker+Valid, 10363 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:22,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3066 Valid, 10363 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1951 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:17:22,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80606 states. [2022-01-18 11:17:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80606 to 24087. [2022-01-18 11:17:23,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24087 states, 24086 states have (on average 2.8792244457361122) internal successors, (69349), 24086 states have internal predecessors, (69349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24087 states to 24087 states and 69349 transitions. [2022-01-18 11:17:23,281 INFO L78 Accepts]: Start accepts. Automaton has 24087 states and 69349 transitions. Word has length 263 [2022-01-18 11:17:23,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:23,282 INFO L470 AbstractCegarLoop]: Abstraction has 24087 states and 69349 transitions. [2022-01-18 11:17:23,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:23,282 INFO L276 IsEmpty]: Start isEmpty. Operand 24087 states and 69349 transitions. [2022-01-18 11:17:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:23,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:23,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:23,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 11:17:23,316 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:23,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1706270993, now seen corresponding path program 99 times [2022-01-18 11:17:23,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:23,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574106839] [2022-01-18 11:17:23,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:23,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:23,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:23,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:23,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574106839] [2022-01-18 11:17:23,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574106839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:23,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:23,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:23,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458392997] [2022-01-18 11:17:23,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:23,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:23,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:23,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:23,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:23,484 INFO L87 Difference]: Start difference. First operand 24087 states and 69349 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:25,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:25,144 INFO L93 Difference]: Finished difference Result 81093 states and 229462 transitions. [2022-01-18 11:17:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:17:25,144 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:25,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:25,299 INFO L225 Difference]: With dead ends: 81093 [2022-01-18 11:17:25,300 INFO L226 Difference]: Without dead ends: 81093 [2022-01-18 11:17:25,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=761, Invalid=2779, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:17:25,300 INFO L933 BasicCegarLoop]: 972 mSDtfsCounter, 3395 mSDsluCounter, 9419 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3395 SdHoareTripleChecker+Valid, 10298 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:25,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3395 Valid, 10298 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:17:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81093 states. [2022-01-18 11:17:26,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81093 to 23751. [2022-01-18 11:17:26,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23751 states, 23750 states have (on average 2.8684210526315788) internal successors, (68125), 23750 states have internal predecessors, (68125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23751 states to 23751 states and 68125 transitions. [2022-01-18 11:17:26,206 INFO L78 Accepts]: Start accepts. Automaton has 23751 states and 68125 transitions. Word has length 263 [2022-01-18 11:17:26,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:26,206 INFO L470 AbstractCegarLoop]: Abstraction has 23751 states and 68125 transitions. [2022-01-18 11:17:26,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:26,207 INFO L276 IsEmpty]: Start isEmpty. Operand 23751 states and 68125 transitions. [2022-01-18 11:17:26,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:26,241 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:26,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:26,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 11:17:26,241 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:26,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:26,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1894211373, now seen corresponding path program 100 times [2022-01-18 11:17:26,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:26,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711902328] [2022-01-18 11:17:26,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:26,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:26,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:26,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711902328] [2022-01-18 11:17:26,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711902328] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:26,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:26,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:26,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720313658] [2022-01-18 11:17:26,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:26,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:26,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:26,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:26,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:26,406 INFO L87 Difference]: Start difference. First operand 23751 states and 68125 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:27,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:27,551 INFO L93 Difference]: Finished difference Result 66274 states and 187505 transitions. [2022-01-18 11:17:27,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:17:27,552 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:27,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:27,689 INFO L225 Difference]: With dead ends: 66274 [2022-01-18 11:17:27,689 INFO L226 Difference]: Without dead ends: 66274 [2022-01-18 11:17:27,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=569, Invalid=2083, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:17:27,690 INFO L933 BasicCegarLoop]: 908 mSDtfsCounter, 2708 mSDsluCounter, 8199 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2708 SdHoareTripleChecker+Valid, 8985 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:27,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2708 Valid, 8985 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1602 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:27,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66274 states. [2022-01-18 11:17:28,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66274 to 23719. [2022-01-18 11:17:28,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23719 states, 23718 states have (on average 2.8680748798380975) internal successors, (68025), 23718 states have internal predecessors, (68025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23719 states to 23719 states and 68025 transitions. [2022-01-18 11:17:28,562 INFO L78 Accepts]: Start accepts. Automaton has 23719 states and 68025 transitions. Word has length 263 [2022-01-18 11:17:28,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:28,563 INFO L470 AbstractCegarLoop]: Abstraction has 23719 states and 68025 transitions. [2022-01-18 11:17:28,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:28,563 INFO L276 IsEmpty]: Start isEmpty. Operand 23719 states and 68025 transitions. [2022-01-18 11:17:28,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:28,597 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:28,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:28,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 11:17:28,597 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:28,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:28,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1288817737, now seen corresponding path program 101 times [2022-01-18 11:17:28,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:28,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580955738] [2022-01-18 11:17:28,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:28,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:28,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:28,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:28,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580955738] [2022-01-18 11:17:28,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580955738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:28,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:28,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:17:28,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268327248] [2022-01-18 11:17:28,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:28,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:17:28,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:28,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:17:28,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:17:28,788 INFO L87 Difference]: Start difference. First operand 23719 states and 68025 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:30,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:30,082 INFO L93 Difference]: Finished difference Result 69780 states and 196814 transitions. [2022-01-18 11:17:30,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:17:30,083 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:30,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:30,219 INFO L225 Difference]: With dead ends: 69780 [2022-01-18 11:17:30,219 INFO L226 Difference]: Without dead ends: 69780 [2022-01-18 11:17:30,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=600, Invalid=2262, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:17:30,219 INFO L933 BasicCegarLoop]: 937 mSDtfsCounter, 2689 mSDsluCounter, 7924 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 8736 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:30,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2689 Valid, 8736 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69780 states. [2022-01-18 11:17:30,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69780 to 23647. [2022-01-18 11:17:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23647 states, 23646 states have (on average 2.867419436691195) internal successors, (67803), 23646 states have internal predecessors, (67803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:31,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23647 states to 23647 states and 67803 transitions. [2022-01-18 11:17:31,036 INFO L78 Accepts]: Start accepts. Automaton has 23647 states and 67803 transitions. Word has length 263 [2022-01-18 11:17:31,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:31,037 INFO L470 AbstractCegarLoop]: Abstraction has 23647 states and 67803 transitions. [2022-01-18 11:17:31,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:31,037 INFO L276 IsEmpty]: Start isEmpty. Operand 23647 states and 67803 transitions. [2022-01-18 11:17:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:31,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:31,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:31,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 11:17:31,073 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:31,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:31,073 INFO L85 PathProgramCache]: Analyzing trace with hash -990794715, now seen corresponding path program 102 times [2022-01-18 11:17:31,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:31,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111118704] [2022-01-18 11:17:31,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:31,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:31,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:31,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:31,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111118704] [2022-01-18 11:17:31,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111118704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:31,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:31,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:31,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585716241] [2022-01-18 11:17:31,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:31,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:31,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:31,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:31,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:31,248 INFO L87 Difference]: Start difference. First operand 23647 states and 67803 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:32,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:32,523 INFO L93 Difference]: Finished difference Result 65373 states and 184859 transitions. [2022-01-18 11:17:32,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:17:32,523 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:32,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:32,648 INFO L225 Difference]: With dead ends: 65373 [2022-01-18 11:17:32,648 INFO L226 Difference]: Without dead ends: 65373 [2022-01-18 11:17:32,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=540, Invalid=2010, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:17:32,649 INFO L933 BasicCegarLoop]: 917 mSDtfsCounter, 2625 mSDsluCounter, 7618 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2625 SdHoareTripleChecker+Valid, 8438 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:32,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2625 Valid, 8438 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:17:32,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65373 states. [2022-01-18 11:17:33,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65373 to 24019. [2022-01-18 11:17:33,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24019 states, 24018 states have (on average 2.8782579731867766) internal successors, (69130), 24018 states have internal predecessors, (69130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24019 states to 24019 states and 69130 transitions. [2022-01-18 11:17:33,494 INFO L78 Accepts]: Start accepts. Automaton has 24019 states and 69130 transitions. Word has length 263 [2022-01-18 11:17:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:33,494 INFO L470 AbstractCegarLoop]: Abstraction has 24019 states and 69130 transitions. [2022-01-18 11:17:33,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 69130 transitions. [2022-01-18 11:17:33,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:33,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:33,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:33,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 11:17:33,527 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:33,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:33,528 INFO L85 PathProgramCache]: Analyzing trace with hash -38824883, now seen corresponding path program 103 times [2022-01-18 11:17:33,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:33,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657737007] [2022-01-18 11:17:33,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:33,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:33,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:33,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:33,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657737007] [2022-01-18 11:17:33,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657737007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:33,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:33,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:33,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90655254] [2022-01-18 11:17:33,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:33,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:33,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:33,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:33,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:33,695 INFO L87 Difference]: Start difference. First operand 24019 states and 69130 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:34,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:34,963 INFO L93 Difference]: Finished difference Result 66054 states and 187081 transitions. [2022-01-18 11:17:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:17:34,964 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:34,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:35,090 INFO L225 Difference]: With dead ends: 66054 [2022-01-18 11:17:35,090 INFO L226 Difference]: Without dead ends: 66054 [2022-01-18 11:17:35,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=602, Invalid=2260, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:17:35,090 INFO L933 BasicCegarLoop]: 1005 mSDtfsCounter, 2747 mSDsluCounter, 8068 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2747 SdHoareTripleChecker+Valid, 8989 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:35,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2747 Valid, 8989 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:35,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66054 states. [2022-01-18 11:17:35,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66054 to 23691. [2022-01-18 11:17:35,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23691 states, 23690 states have (on average 2.8677078936260023) internal successors, (67936), 23690 states have internal predecessors, (67936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:35,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 67936 transitions. [2022-01-18 11:17:35,928 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 67936 transitions. Word has length 263 [2022-01-18 11:17:35,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:35,928 INFO L470 AbstractCegarLoop]: Abstraction has 23691 states and 67936 transitions. [2022-01-18 11:17:35,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:35,928 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 67936 transitions. [2022-01-18 11:17:35,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:35,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:35,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:35,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 11:17:35,962 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:35,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:35,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1205617499, now seen corresponding path program 104 times [2022-01-18 11:17:35,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:35,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750388901] [2022-01-18 11:17:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:35,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:36,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:36,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:36,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750388901] [2022-01-18 11:17:36,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750388901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:36,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:36,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:36,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069168708] [2022-01-18 11:17:36,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:36,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:36,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:36,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:36,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:36,136 INFO L87 Difference]: Start difference. First operand 23691 states and 67936 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:37,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:37,123 INFO L93 Difference]: Finished difference Result 50598 states and 143555 transitions. [2022-01-18 11:17:37,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:17:37,123 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:37,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:37,227 INFO L225 Difference]: With dead ends: 50598 [2022-01-18 11:17:37,227 INFO L226 Difference]: Without dead ends: 50598 [2022-01-18 11:17:37,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=493, Invalid=1859, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:17:37,228 INFO L933 BasicCegarLoop]: 851 mSDtfsCounter, 2151 mSDsluCounter, 7062 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 7839 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:37,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2151 Valid, 7839 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:17:37,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50598 states. [2022-01-18 11:17:37,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50598 to 23659. [2022-01-18 11:17:37,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23659 states, 23658 states have (on average 2.86735987826528) internal successors, (67836), 23658 states have internal predecessors, (67836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:37,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23659 states to 23659 states and 67836 transitions. [2022-01-18 11:17:37,989 INFO L78 Accepts]: Start accepts. Automaton has 23659 states and 67836 transitions. Word has length 263 [2022-01-18 11:17:37,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:37,989 INFO L470 AbstractCegarLoop]: Abstraction has 23659 states and 67836 transitions. [2022-01-18 11:17:37,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:37,989 INFO L276 IsEmpty]: Start isEmpty. Operand 23659 states and 67836 transitions. [2022-01-18 11:17:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:38,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:38,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:38,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 11:17:38,032 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:38,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:38,033 INFO L85 PathProgramCache]: Analyzing trace with hash -267267163, now seen corresponding path program 105 times [2022-01-18 11:17:38,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:38,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697516550] [2022-01-18 11:17:38,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:38,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:38,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:38,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:38,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697516550] [2022-01-18 11:17:38,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697516550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:38,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:38,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:38,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047889321] [2022-01-18 11:17:38,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:38,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:38,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:38,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:38,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:38,209 INFO L87 Difference]: Start difference. First operand 23659 states and 67836 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:39,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:39,451 INFO L93 Difference]: Finished difference Result 65608 states and 185540 transitions. [2022-01-18 11:17:39,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:17:39,452 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:39,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:39,605 INFO L225 Difference]: With dead ends: 65608 [2022-01-18 11:17:39,605 INFO L226 Difference]: Without dead ends: 65608 [2022-01-18 11:17:39,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1775, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:17:39,606 INFO L933 BasicCegarLoop]: 899 mSDtfsCounter, 2568 mSDsluCounter, 7582 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2568 SdHoareTripleChecker+Valid, 8396 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:39,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2568 Valid, 8396 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:39,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65608 states. [2022-01-18 11:17:40,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65608 to 24019. [2022-01-18 11:17:40,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24019 states, 24018 states have (on average 2.8782579731867766) internal successors, (69130), 24018 states have internal predecessors, (69130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:40,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24019 states to 24019 states and 69130 transitions. [2022-01-18 11:17:40,273 INFO L78 Accepts]: Start accepts. Automaton has 24019 states and 69130 transitions. Word has length 263 [2022-01-18 11:17:40,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:40,273 INFO L470 AbstractCegarLoop]: Abstraction has 24019 states and 69130 transitions. [2022-01-18 11:17:40,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:40,273 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 69130 transitions. [2022-01-18 11:17:40,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:40,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:40,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:40,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 11:17:40,308 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:40,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:40,308 INFO L85 PathProgramCache]: Analyzing trace with hash 684702669, now seen corresponding path program 106 times [2022-01-18 11:17:40,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:40,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30325940] [2022-01-18 11:17:40,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:40,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:40,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:40,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30325940] [2022-01-18 11:17:40,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30325940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:40,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:40,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:40,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064723138] [2022-01-18 11:17:40,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:40,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:40,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:40,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:40,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:40,633 INFO L87 Difference]: Start difference. First operand 24019 states and 69130 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:41,761 INFO L93 Difference]: Finished difference Result 66152 states and 187359 transitions. [2022-01-18 11:17:41,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:17:41,761 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:41,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:41,899 INFO L225 Difference]: With dead ends: 66152 [2022-01-18 11:17:41,899 INFO L226 Difference]: Without dead ends: 66152 [2022-01-18 11:17:41,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=588, Invalid=2168, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:17:41,900 INFO L933 BasicCegarLoop]: 938 mSDtfsCounter, 2772 mSDsluCounter, 7596 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2772 SdHoareTripleChecker+Valid, 8473 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:41,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2772 Valid, 8473 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:41,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66152 states. [2022-01-18 11:17:42,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66152 to 23691. [2022-01-18 11:17:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23691 states, 23690 states have (on average 2.8677078936260023) internal successors, (67936), 23690 states have internal predecessors, (67936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:42,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 67936 transitions. [2022-01-18 11:17:42,689 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 67936 transitions. Word has length 263 [2022-01-18 11:17:42,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:42,689 INFO L470 AbstractCegarLoop]: Abstraction has 23691 states and 67936 transitions. [2022-01-18 11:17:42,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:42,690 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 67936 transitions. [2022-01-18 11:17:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:42,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:42,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:42,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 11:17:42,723 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:42,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:42,724 INFO L85 PathProgramCache]: Analyzing trace with hash -9782261, now seen corresponding path program 107 times [2022-01-18 11:17:42,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:42,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159879401] [2022-01-18 11:17:42,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:42,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:42,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:42,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159879401] [2022-01-18 11:17:42,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159879401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:42,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:42,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:42,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883526300] [2022-01-18 11:17:42,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:42,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:42,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:42,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:42,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:42,887 INFO L87 Difference]: Start difference. First operand 23691 states and 67936 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:43,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:43,870 INFO L93 Difference]: Finished difference Result 50876 states and 144217 transitions. [2022-01-18 11:17:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:17:43,870 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:43,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:43,971 INFO L225 Difference]: With dead ends: 50876 [2022-01-18 11:17:43,971 INFO L226 Difference]: Without dead ends: 50876 [2022-01-18 11:17:43,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:17:43,972 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 1873 mSDsluCounter, 8253 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 8981 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:43,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1873 Valid, 8981 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:44,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50876 states. [2022-01-18 11:17:44,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50876 to 23655. [2022-01-18 11:17:44,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23655 states, 23654 states have (on average 2.8673797243595165) internal successors, (67825), 23654 states have internal predecessors, (67825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:44,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23655 states to 23655 states and 67825 transitions. [2022-01-18 11:17:44,652 INFO L78 Accepts]: Start accepts. Automaton has 23655 states and 67825 transitions. Word has length 263 [2022-01-18 11:17:44,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:44,653 INFO L470 AbstractCegarLoop]: Abstraction has 23655 states and 67825 transitions. [2022-01-18 11:17:44,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:44,653 INFO L276 IsEmpty]: Start isEmpty. Operand 23655 states and 67825 transitions. [2022-01-18 11:17:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:44,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:44,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:44,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 11:17:44,689 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:44,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:44,690 INFO L85 PathProgramCache]: Analyzing trace with hash -521111865, now seen corresponding path program 108 times [2022-01-18 11:17:44,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:44,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902251369] [2022-01-18 11:17:44,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:44,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:44,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:44,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:44,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902251369] [2022-01-18 11:17:44,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902251369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:44,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:44,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:44,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003282158] [2022-01-18 11:17:44,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:44,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:44,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:44,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:44,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:44,866 INFO L87 Difference]: Start difference. First operand 23655 states and 67825 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:46,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:46,232 INFO L93 Difference]: Finished difference Result 65079 states and 184047 transitions. [2022-01-18 11:17:46,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:17:46,232 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:46,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:46,362 INFO L225 Difference]: With dead ends: 65079 [2022-01-18 11:17:46,362 INFO L226 Difference]: Without dead ends: 65079 [2022-01-18 11:17:46,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=582, Invalid=2070, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:17:46,362 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 2744 mSDsluCounter, 8369 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 9229 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:46,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2744 Valid, 9229 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1699 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:17:46,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65079 states. [2022-01-18 11:17:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65079 to 24087. [2022-01-18 11:17:46,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24087 states, 24086 states have (on average 2.8792244457361122) internal successors, (69349), 24086 states have internal predecessors, (69349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:47,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24087 states to 24087 states and 69349 transitions. [2022-01-18 11:17:47,233 INFO L78 Accepts]: Start accepts. Automaton has 24087 states and 69349 transitions. Word has length 263 [2022-01-18 11:17:47,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:47,233 INFO L470 AbstractCegarLoop]: Abstraction has 24087 states and 69349 transitions. [2022-01-18 11:17:47,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:47,233 INFO L276 IsEmpty]: Start isEmpty. Operand 24087 states and 69349 transitions. [2022-01-18 11:17:47,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:47,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:47,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:47,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 11:17:47,266 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:47,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:47,266 INFO L85 PathProgramCache]: Analyzing trace with hash 430857967, now seen corresponding path program 109 times [2022-01-18 11:17:47,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:47,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221880731] [2022-01-18 11:17:47,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:47,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:47,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:47,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:47,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221880731] [2022-01-18 11:17:47,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221880731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:47,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:47,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:47,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439226470] [2022-01-18 11:17:47,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:47,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:47,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:47,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:47,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:47,454 INFO L87 Difference]: Start difference. First operand 24087 states and 69349 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:48,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:48,902 INFO L93 Difference]: Finished difference Result 65949 states and 186770 transitions. [2022-01-18 11:17:48,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:17:48,903 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:48,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:49,036 INFO L225 Difference]: With dead ends: 65949 [2022-01-18 11:17:49,036 INFO L226 Difference]: Without dead ends: 65949 [2022-01-18 11:17:49,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=689, Invalid=2503, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:17:49,037 INFO L933 BasicCegarLoop]: 1068 mSDtfsCounter, 3038 mSDsluCounter, 9815 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3038 SdHoareTripleChecker+Valid, 10783 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:49,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3038 Valid, 10783 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:17:49,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65949 states. [2022-01-18 11:17:49,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65949 to 23751. [2022-01-18 11:17:49,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23751 states, 23750 states have (on average 2.8684210526315788) internal successors, (68125), 23750 states have internal predecessors, (68125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:49,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23751 states to 23751 states and 68125 transitions. [2022-01-18 11:17:49,815 INFO L78 Accepts]: Start accepts. Automaton has 23751 states and 68125 transitions. Word has length 263 [2022-01-18 11:17:49,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:49,815 INFO L470 AbstractCegarLoop]: Abstraction has 23751 states and 68125 transitions. [2022-01-18 11:17:49,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:49,815 INFO L276 IsEmpty]: Start isEmpty. Operand 23751 states and 68125 transitions. [2022-01-18 11:17:49,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:49,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:49,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:49,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 11:17:49,847 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:49,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:49,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1675300349, now seen corresponding path program 110 times [2022-01-18 11:17:49,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:49,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799475611] [2022-01-18 11:17:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:49,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:50,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:50,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:50,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799475611] [2022-01-18 11:17:50,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799475611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:50,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:50,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:17:50,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074946799] [2022-01-18 11:17:50,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:50,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:17:50,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:50,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:17:50,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:17:50,019 INFO L87 Difference]: Start difference. First operand 23751 states and 68125 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:51,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:51,339 INFO L93 Difference]: Finished difference Result 50613 states and 143574 transitions. [2022-01-18 11:17:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:17:51,340 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:51,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:51,446 INFO L225 Difference]: With dead ends: 50613 [2022-01-18 11:17:51,446 INFO L226 Difference]: Without dead ends: 50613 [2022-01-18 11:17:51,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=563, Invalid=2193, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:17:51,446 INFO L933 BasicCegarLoop]: 914 mSDtfsCounter, 2575 mSDsluCounter, 9799 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 10616 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:51,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2575 Valid, 10616 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:17:51,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50613 states. [2022-01-18 11:17:51,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50613 to 23719. [2022-01-18 11:17:51,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23719 states, 23718 states have (on average 2.8680748798380975) internal successors, (68025), 23718 states have internal predecessors, (68025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:51,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23719 states to 23719 states and 68025 transitions. [2022-01-18 11:17:51,974 INFO L78 Accepts]: Start accepts. Automaton has 23719 states and 68025 transitions. Word has length 263 [2022-01-18 11:17:51,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:51,975 INFO L470 AbstractCegarLoop]: Abstraction has 23719 states and 68025 transitions. [2022-01-18 11:17:51,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:51,975 INFO L276 IsEmpty]: Start isEmpty. Operand 23719 states and 68025 transitions. [2022-01-18 11:17:52,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:52,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:52,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:52,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 11:17:52,006 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:52,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:52,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1635048473, now seen corresponding path program 111 times [2022-01-18 11:17:52,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:52,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902312816] [2022-01-18 11:17:52,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:52,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:52,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:52,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902312816] [2022-01-18 11:17:52,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902312816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:52,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:52,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:52,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492445568] [2022-01-18 11:17:52,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:52,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:52,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:52,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:52,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:52,177 INFO L87 Difference]: Start difference. First operand 23719 states and 68025 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:53,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:53,323 INFO L93 Difference]: Finished difference Result 54233 states and 153123 transitions. [2022-01-18 11:17:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:17:53,323 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:53,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:53,440 INFO L225 Difference]: With dead ends: 54233 [2022-01-18 11:17:53,440 INFO L226 Difference]: Without dead ends: 54233 [2022-01-18 11:17:53,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=571, Invalid=2081, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:17:53,441 INFO L933 BasicCegarLoop]: 941 mSDtfsCounter, 2472 mSDsluCounter, 7262 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 8126 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:53,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2472 Valid, 8126 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:53,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54233 states. [2022-01-18 11:17:53,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54233 to 23631. [2022-01-18 11:17:53,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23631 states, 23630 states have (on average 2.8674989420228525) internal successors, (67759), 23630 states have internal predecessors, (67759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23631 states to 23631 states and 67759 transitions. [2022-01-18 11:17:54,020 INFO L78 Accepts]: Start accepts. Automaton has 23631 states and 67759 transitions. Word has length 263 [2022-01-18 11:17:54,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:54,020 INFO L470 AbstractCegarLoop]: Abstraction has 23631 states and 67759 transitions. [2022-01-18 11:17:54,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:54,020 INFO L276 IsEmpty]: Start isEmpty. Operand 23631 states and 67759 transitions. [2022-01-18 11:17:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:54,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:54,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:54,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 11:17:54,108 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:54,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:54,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1624380453, now seen corresponding path program 112 times [2022-01-18 11:17:54,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:54,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771610724] [2022-01-18 11:17:54,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:54,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:54,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:54,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:54,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771610724] [2022-01-18 11:17:54,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771610724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:54,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:54,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:54,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732295927] [2022-01-18 11:17:54,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:54,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:54,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:54,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:54,276 INFO L87 Difference]: Start difference. First operand 23631 states and 67759 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:55,267 INFO L93 Difference]: Finished difference Result 45863 states and 129597 transitions. [2022-01-18 11:17:55,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 11:17:55,267 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:55,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:55,355 INFO L225 Difference]: With dead ends: 45863 [2022-01-18 11:17:55,356 INFO L226 Difference]: Without dead ends: 45863 [2022-01-18 11:17:55,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1721, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:17:55,356 INFO L933 BasicCegarLoop]: 733 mSDtfsCounter, 2129 mSDsluCounter, 7407 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 8048 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:55,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2129 Valid, 8048 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:17:55,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45863 states. [2022-01-18 11:17:55,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45863 to 24007. [2022-01-18 11:17:55,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24007 states, 24006 states have (on average 2.8783220861451304) internal successors, (69097), 24006 states have internal predecessors, (69097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24007 states to 24007 states and 69097 transitions. [2022-01-18 11:17:55,906 INFO L78 Accepts]: Start accepts. Automaton has 24007 states and 69097 transitions. Word has length 263 [2022-01-18 11:17:55,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:55,907 INFO L470 AbstractCegarLoop]: Abstraction has 24007 states and 69097 transitions. [2022-01-18 11:17:55,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,907 INFO L276 IsEmpty]: Start isEmpty. Operand 24007 states and 69097 transitions. [2022-01-18 11:17:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:55,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:55,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:55,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 11:17:55,940 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:55,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1718617011, now seen corresponding path program 113 times [2022-01-18 11:17:55,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:55,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473082095] [2022-01-18 11:17:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:55,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:56,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:56,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:56,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473082095] [2022-01-18 11:17:56,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473082095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:56,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:56,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:56,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586306438] [2022-01-18 11:17:56,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:56,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:56,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:56,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:56,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:56,159 INFO L87 Difference]: Start difference. First operand 24007 states and 69097 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:57,026 INFO L93 Difference]: Finished difference Result 46727 states and 132238 transitions. [2022-01-18 11:17:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:17:57,027 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:57,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:57,119 INFO L225 Difference]: With dead ends: 46727 [2022-01-18 11:17:57,119 INFO L226 Difference]: Without dead ends: 46727 [2022-01-18 11:17:57,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1798, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:17:57,120 INFO L933 BasicCegarLoop]: 777 mSDtfsCounter, 2191 mSDsluCounter, 6652 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 7364 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:57,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2191 Valid, 7364 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:17:57,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46727 states. [2022-01-18 11:17:57,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46727 to 23679. [2022-01-18 11:17:57,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23679 states, 23678 states have (on average 2.867767547934792) internal successors, (67903), 23678 states have internal predecessors, (67903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23679 states to 23679 states and 67903 transitions. [2022-01-18 11:17:57,670 INFO L78 Accepts]: Start accepts. Automaton has 23679 states and 67903 transitions. Word has length 263 [2022-01-18 11:17:57,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:57,670 INFO L470 AbstractCegarLoop]: Abstraction has 23679 states and 67903 transitions. [2022-01-18 11:17:57,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,670 INFO L276 IsEmpty]: Start isEmpty. Operand 23679 states and 67903 transitions. [2022-01-18 11:17:57,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:57,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:57,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:57,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 11:17:57,703 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:57,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:57,703 INFO L85 PathProgramCache]: Analyzing trace with hash -474174629, now seen corresponding path program 114 times [2022-01-18 11:17:57,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:57,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660345714] [2022-01-18 11:17:57,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:57,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:57,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:57,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660345714] [2022-01-18 11:17:57,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660345714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:57,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:57,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:57,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094961046] [2022-01-18 11:17:57,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:57,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:57,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:57,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:57,866 INFO L87 Difference]: Start difference. First operand 23679 states and 67903 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:58,705 INFO L93 Difference]: Finished difference Result 31271 states and 88712 transitions. [2022-01-18 11:17:58,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:17:58,706 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:17:58,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:58,760 INFO L225 Difference]: With dead ends: 31271 [2022-01-18 11:17:58,760 INFO L226 Difference]: Without dead ends: 31271 [2022-01-18 11:17:58,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=401, Invalid=1579, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:17:58,760 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 1937 mSDsluCounter, 5906 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 6464 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:58,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1937 Valid, 6464 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:17:58,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31271 states. [2022-01-18 11:17:59,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31271 to 23647. [2022-01-18 11:17:59,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23647 states, 23646 states have (on average 2.867419436691195) internal successors, (67803), 23646 states have internal predecessors, (67803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23647 states to 23647 states and 67803 transitions. [2022-01-18 11:17:59,165 INFO L78 Accepts]: Start accepts. Automaton has 23647 states and 67803 transitions. Word has length 263 [2022-01-18 11:17:59,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:59,165 INFO L470 AbstractCegarLoop]: Abstraction has 23647 states and 67803 transitions. [2022-01-18 11:17:59,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,165 INFO L276 IsEmpty]: Start isEmpty. Operand 23647 states and 67803 transitions. [2022-01-18 11:17:59,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:17:59,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:59,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:59,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 11:17:59,201 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:59,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:59,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1947059291, now seen corresponding path program 115 times [2022-01-18 11:17:59,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:59,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695269531] [2022-01-18 11:17:59,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:59,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:59,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:59,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:59,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695269531] [2022-01-18 11:17:59,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695269531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:59,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:59,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:17:59,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763177999] [2022-01-18 11:17:59,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:59,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:17:59,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:59,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:17:59,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:17:59,364 INFO L87 Difference]: Start difference. First operand 23647 states and 67803 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:00,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:00,301 INFO L93 Difference]: Finished difference Result 46835 states and 132293 transitions. [2022-01-18 11:18:00,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:18:00,302 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:00,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:00,388 INFO L225 Difference]: With dead ends: 46835 [2022-01-18 11:18:00,388 INFO L226 Difference]: Without dead ends: 46835 [2022-01-18 11:18:00,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1880, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:18:00,389 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 2335 mSDsluCounter, 7352 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2335 SdHoareTripleChecker+Valid, 8048 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:00,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2335 Valid, 8048 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:00,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46835 states. [2022-01-18 11:18:00,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46835 to 24007. [2022-01-18 11:18:00,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24007 states, 24006 states have (on average 2.8783220861451304) internal successors, (69097), 24006 states have internal predecessors, (69097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24007 states to 24007 states and 69097 transitions. [2022-01-18 11:18:01,039 INFO L78 Accepts]: Start accepts. Automaton has 24007 states and 69097 transitions. Word has length 263 [2022-01-18 11:18:01,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:01,039 INFO L470 AbstractCegarLoop]: Abstraction has 24007 states and 69097 transitions. [2022-01-18 11:18:01,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,039 INFO L276 IsEmpty]: Start isEmpty. Operand 24007 states and 69097 transitions. [2022-01-18 11:18:01,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:01,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:01,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:01,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 11:18:01,075 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:01,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:01,075 INFO L85 PathProgramCache]: Analyzing trace with hash -995089459, now seen corresponding path program 116 times [2022-01-18 11:18:01,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:01,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204517921] [2022-01-18 11:18:01,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:01,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:01,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:01,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204517921] [2022-01-18 11:18:01,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204517921] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:01,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:01,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:01,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436984955] [2022-01-18 11:18:01,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:01,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:01,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:01,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:01,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:01,256 INFO L87 Difference]: Start difference. First operand 24007 states and 69097 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:02,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:02,302 INFO L93 Difference]: Finished difference Result 47439 states and 134203 transitions. [2022-01-18 11:18:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:18:02,302 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:02,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:02,387 INFO L225 Difference]: With dead ends: 47439 [2022-01-18 11:18:02,387 INFO L226 Difference]: Without dead ends: 47439 [2022-01-18 11:18:02,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=509, Invalid=2041, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:18:02,388 INFO L933 BasicCegarLoop]: 792 mSDtfsCounter, 2026 mSDsluCounter, 8102 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2026 SdHoareTripleChecker+Valid, 8831 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:02,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2026 Valid, 8831 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:02,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47439 states. [2022-01-18 11:18:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47439 to 23679. [2022-01-18 11:18:03,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23679 states, 23678 states have (on average 2.867767547934792) internal successors, (67903), 23678 states have internal predecessors, (67903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23679 states to 23679 states and 67903 transitions. [2022-01-18 11:18:03,083 INFO L78 Accepts]: Start accepts. Automaton has 23679 states and 67903 transitions. Word has length 263 [2022-01-18 11:18:03,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:03,084 INFO L470 AbstractCegarLoop]: Abstraction has 23679 states and 67903 transitions. [2022-01-18 11:18:03,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,084 INFO L276 IsEmpty]: Start isEmpty. Operand 23679 states and 67903 transitions. [2022-01-18 11:18:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:03,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:03,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:03,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 11:18:03,114 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:03,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:03,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1689574389, now seen corresponding path program 117 times [2022-01-18 11:18:03,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:03,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777853477] [2022-01-18 11:18:03,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:03,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:03,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:03,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:03,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777853477] [2022-01-18 11:18:03,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777853477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:03,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:03,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:03,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563318115] [2022-01-18 11:18:03,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:03,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:03,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:03,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:03,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:03,291 INFO L87 Difference]: Start difference. First operand 23679 states and 67903 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:04,025 INFO L93 Difference]: Finished difference Result 32047 states and 90820 transitions. [2022-01-18 11:18:04,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:18:04,025 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:04,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:04,087 INFO L225 Difference]: With dead ends: 32047 [2022-01-18 11:18:04,087 INFO L226 Difference]: Without dead ends: 32047 [2022-01-18 11:18:04,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=375, Invalid=1517, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:18:04,088 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 1974 mSDsluCounter, 5969 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 6576 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:04,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1974 Valid, 6576 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:04,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32047 states. [2022-01-18 11:18:04,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32047 to 23643. [2022-01-18 11:18:04,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23643 states, 23642 states have (on average 2.8674393029354537) internal successors, (67792), 23642 states have internal predecessors, (67792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23643 states to 23643 states and 67792 transitions. [2022-01-18 11:18:04,488 INFO L78 Accepts]: Start accepts. Automaton has 23643 states and 67792 transitions. Word has length 263 [2022-01-18 11:18:04,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:04,488 INFO L470 AbstractCegarLoop]: Abstraction has 23643 states and 67792 transitions. [2022-01-18 11:18:04,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,488 INFO L276 IsEmpty]: Start isEmpty. Operand 23643 states and 67792 transitions. [2022-01-18 11:18:04,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:04,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:04,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:04,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 11:18:04,519 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:04,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:04,520 INFO L85 PathProgramCache]: Analyzing trace with hash 431658823, now seen corresponding path program 118 times [2022-01-18 11:18:04,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:04,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658146615] [2022-01-18 11:18:04,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:04,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:04,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:04,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:04,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658146615] [2022-01-18 11:18:04,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658146615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:04,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:04,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:04,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087506177] [2022-01-18 11:18:04,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:04,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:04,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:04,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:04,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:04,693 INFO L87 Difference]: Start difference. First operand 23643 states and 67792 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:06,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:06,021 INFO L93 Difference]: Finished difference Result 63385 states and 178836 transitions. [2022-01-18 11:18:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:18:06,021 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:06,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:06,148 INFO L225 Difference]: With dead ends: 63385 [2022-01-18 11:18:06,148 INFO L226 Difference]: Without dead ends: 63385 [2022-01-18 11:18:06,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=593, Invalid=2269, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:18:06,149 INFO L933 BasicCegarLoop]: 914 mSDtfsCounter, 2452 mSDsluCounter, 8523 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2452 SdHoareTripleChecker+Valid, 9328 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:06,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2452 Valid, 9328 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:18:06,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63385 states. [2022-01-18 11:18:06,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63385 to 24075. [2022-01-18 11:18:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24075 states, 24074 states have (on average 2.8792888593503365) internal successors, (69316), 24074 states have internal predecessors, (69316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:06,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24075 states to 24075 states and 69316 transitions. [2022-01-18 11:18:06,822 INFO L78 Accepts]: Start accepts. Automaton has 24075 states and 69316 transitions. Word has length 263 [2022-01-18 11:18:06,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:06,822 INFO L470 AbstractCegarLoop]: Abstraction has 24075 states and 69316 transitions. [2022-01-18 11:18:06,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:06,823 INFO L276 IsEmpty]: Start isEmpty. Operand 24075 states and 69316 transitions. [2022-01-18 11:18:06,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:06,855 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:06,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:06,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 11:18:06,856 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:06,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:06,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1383628655, now seen corresponding path program 119 times [2022-01-18 11:18:06,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:06,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110776213] [2022-01-18 11:18:06,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:06,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:07,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:07,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110776213] [2022-01-18 11:18:07,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110776213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:07,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:07,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:07,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459553001] [2022-01-18 11:18:07,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:07,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:07,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:07,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:07,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:07,022 INFO L87 Difference]: Start difference. First operand 24075 states and 69316 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:08,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:08,266 INFO L93 Difference]: Finished difference Result 64025 states and 180900 transitions. [2022-01-18 11:18:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:18:08,266 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:08,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:08,386 INFO L225 Difference]: With dead ends: 64025 [2022-01-18 11:18:08,386 INFO L226 Difference]: Without dead ends: 64025 [2022-01-18 11:18:08,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=635, Invalid=2445, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:18:08,386 INFO L933 BasicCegarLoop]: 922 mSDtfsCounter, 2383 mSDsluCounter, 8597 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 9444 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:08,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2383 Valid, 9444 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:08,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64025 states. [2022-01-18 11:18:08,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64025 to 23739. [2022-01-18 11:18:08,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23739 states, 23738 states have (on average 2.8684809166736875) internal successors, (68092), 23738 states have internal predecessors, (68092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:09,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23739 states to 23739 states and 68092 transitions. [2022-01-18 11:18:09,037 INFO L78 Accepts]: Start accepts. Automaton has 23739 states and 68092 transitions. Word has length 263 [2022-01-18 11:18:09,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:09,037 INFO L470 AbstractCegarLoop]: Abstraction has 23739 states and 68092 transitions. [2022-01-18 11:18:09,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 23739 states and 68092 transitions. [2022-01-18 11:18:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:09,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:09,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:09,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 11:18:09,070 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:09,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:09,070 INFO L85 PathProgramCache]: Analyzing trace with hash 689143725, now seen corresponding path program 120 times [2022-01-18 11:18:09,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:09,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64104673] [2022-01-18 11:18:09,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:09,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:09,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:09,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64104673] [2022-01-18 11:18:09,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64104673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:09,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:09,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:09,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157178967] [2022-01-18 11:18:09,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:09,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:09,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:09,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:09,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:09,236 INFO L87 Difference]: Start difference. First operand 23739 states and 68092 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:10,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:10,239 INFO L93 Difference]: Finished difference Result 49089 states and 138728 transitions. [2022-01-18 11:18:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:18:10,239 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:10,357 INFO L225 Difference]: With dead ends: 49089 [2022-01-18 11:18:10,357 INFO L226 Difference]: Without dead ends: 49089 [2022-01-18 11:18:10,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=482, Invalid=1870, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:18:10,358 INFO L933 BasicCegarLoop]: 841 mSDtfsCounter, 2209 mSDsluCounter, 7196 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 7941 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:10,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2209 Valid, 7941 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:10,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49089 states. [2022-01-18 11:18:11,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49089 to 23707. [2022-01-18 11:18:11,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23707 states, 23706 states have (on average 2.868134649455834) internal successors, (67992), 23706 states have internal predecessors, (67992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:11,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23707 states to 23707 states and 67992 transitions. [2022-01-18 11:18:11,109 INFO L78 Accepts]: Start accepts. Automaton has 23707 states and 67992 transitions. Word has length 263 [2022-01-18 11:18:11,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:11,110 INFO L470 AbstractCegarLoop]: Abstraction has 23707 states and 67992 transitions. [2022-01-18 11:18:11,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:11,110 INFO L276 IsEmpty]: Start isEmpty. Operand 23707 states and 67992 transitions. [2022-01-18 11:18:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:11,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:11,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:11,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 11:18:11,142 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:11,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:11,143 INFO L85 PathProgramCache]: Analyzing trace with hash 83750089, now seen corresponding path program 121 times [2022-01-18 11:18:11,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:11,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628965353] [2022-01-18 11:18:11,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:11,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:11,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:11,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628965353] [2022-01-18 11:18:11,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628965353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:11,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:11,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:11,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257125554] [2022-01-18 11:18:11,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:11,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:11,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:11,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:11,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:11,302 INFO L87 Difference]: Start difference. First operand 23707 states and 67992 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:12,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:12,348 INFO L93 Difference]: Finished difference Result 51943 states and 146048 transitions. [2022-01-18 11:18:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:18:12,349 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:12,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:12,470 INFO L225 Difference]: With dead ends: 51943 [2022-01-18 11:18:12,470 INFO L226 Difference]: Without dead ends: 51943 [2022-01-18 11:18:12,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=505, Invalid=1945, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:18:12,471 INFO L933 BasicCegarLoop]: 855 mSDtfsCounter, 2141 mSDsluCounter, 8030 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2141 SdHoareTripleChecker+Valid, 8766 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:12,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2141 Valid, 8766 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51943 states. [2022-01-18 11:18:13,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51943 to 23635. [2022-01-18 11:18:13,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23635 states, 23634 states have (on average 2.8674790555978675) internal successors, (67770), 23634 states have internal predecessors, (67770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:13,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23635 states to 23635 states and 67770 transitions. [2022-01-18 11:18:13,077 INFO L78 Accepts]: Start accepts. Automaton has 23635 states and 67770 transitions. Word has length 263 [2022-01-18 11:18:13,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:13,077 INFO L470 AbstractCegarLoop]: Abstraction has 23635 states and 67770 transitions. [2022-01-18 11:18:13,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 23635 states and 67770 transitions. [2022-01-18 11:18:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:13,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:13,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:13,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 11:18:13,109 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:13,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:13,109 INFO L85 PathProgramCache]: Analyzing trace with hash 507715945, now seen corresponding path program 122 times [2022-01-18 11:18:13,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:13,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300240331] [2022-01-18 11:18:13,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:13,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:13,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:13,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300240331] [2022-01-18 11:18:13,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300240331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:13,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:13,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:13,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753147820] [2022-01-18 11:18:13,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:13,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:13,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:13,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:13,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:13,273 INFO L87 Difference]: Start difference. First operand 23635 states and 67770 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:14,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:14,286 INFO L93 Difference]: Finished difference Result 46090 states and 130244 transitions. [2022-01-18 11:18:14,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:18:14,287 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:14,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:14,364 INFO L225 Difference]: With dead ends: 46090 [2022-01-18 11:18:14,364 INFO L226 Difference]: Without dead ends: 46090 [2022-01-18 11:18:14,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=431, Invalid=1639, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:18:14,365 INFO L933 BasicCegarLoop]: 750 mSDtfsCounter, 2500 mSDsluCounter, 7482 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:14,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2500 Valid, 8151 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:14,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46090 states. [2022-01-18 11:18:14,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46090 to 24103. [2022-01-18 11:18:14,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24103 states, 24102 states have (on average 2.879802506016098) internal successors, (69409), 24102 states have internal predecessors, (69409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24103 states to 24103 states and 69409 transitions. [2022-01-18 11:18:14,882 INFO L78 Accepts]: Start accepts. Automaton has 24103 states and 69409 transitions. Word has length 263 [2022-01-18 11:18:14,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:14,882 INFO L470 AbstractCegarLoop]: Abstraction has 24103 states and 69409 transitions. [2022-01-18 11:18:14,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 24103 states and 69409 transitions. [2022-01-18 11:18:14,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:14,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:14,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:14,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 11:18:14,917 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:14,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:14,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1459685777, now seen corresponding path program 123 times [2022-01-18 11:18:14,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:14,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661675052] [2022-01-18 11:18:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:14,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:15,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:15,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:15,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661675052] [2022-01-18 11:18:15,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661675052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:15,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:15,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:15,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009418406] [2022-01-18 11:18:15,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:15,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:15,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:15,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:15,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:15,082 INFO L87 Difference]: Start difference. First operand 24103 states and 69409 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:16,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:16,056 INFO L93 Difference]: Finished difference Result 46817 states and 132482 transitions. [2022-01-18 11:18:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:18:16,056 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:16,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:16,149 INFO L225 Difference]: With dead ends: 46817 [2022-01-18 11:18:16,150 INFO L226 Difference]: Without dead ends: 46817 [2022-01-18 11:18:16,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=537, Invalid=2013, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:18:16,150 INFO L933 BasicCegarLoop]: 791 mSDtfsCounter, 2447 mSDsluCounter, 7252 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 7989 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:16,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2447 Valid, 7989 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:16,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46817 states. [2022-01-18 11:18:16,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46817 to 23831. [2022-01-18 11:18:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23831 states, 23830 states have (on average 2.8685270667226184) internal successors, (68357), 23830 states have internal predecessors, (68357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:16,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23831 states to 23831 states and 68357 transitions. [2022-01-18 11:18:16,717 INFO L78 Accepts]: Start accepts. Automaton has 23831 states and 68357 transitions. Word has length 263 [2022-01-18 11:18:16,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:16,717 INFO L470 AbstractCegarLoop]: Abstraction has 23831 states and 68357 transitions. [2022-01-18 11:18:16,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:16,718 INFO L276 IsEmpty]: Start isEmpty. Operand 23831 states and 68357 transitions. [2022-01-18 11:18:16,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:16,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:16,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:16,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 11:18:16,752 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:16,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:16,752 INFO L85 PathProgramCache]: Analyzing trace with hash 765200847, now seen corresponding path program 124 times [2022-01-18 11:18:16,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:16,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358726456] [2022-01-18 11:18:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:16,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:16,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:16,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:16,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358726456] [2022-01-18 11:18:16,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358726456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:16,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:16,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:16,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666649455] [2022-01-18 11:18:16,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:16,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:16,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:16,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:16,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:16,933 INFO L87 Difference]: Start difference. First operand 23831 states and 68357 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:17,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:17,983 INFO L93 Difference]: Finished difference Result 47814 states and 135193 transitions. [2022-01-18 11:18:17,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:18:17,983 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:17,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:18,056 INFO L225 Difference]: With dead ends: 47814 [2022-01-18 11:18:18,056 INFO L226 Difference]: Without dead ends: 47814 [2022-01-18 11:18:18,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=411, Invalid=1569, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:18:18,056 INFO L933 BasicCegarLoop]: 772 mSDtfsCounter, 2344 mSDsluCounter, 7209 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2344 SdHoareTripleChecker+Valid, 7891 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:18,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2344 Valid, 7891 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:18,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47814 states. [2022-01-18 11:18:18,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47814 to 23799. [2022-01-18 11:18:18,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23799 states, 23798 states have (on average 2.8681822001848896) internal successors, (68257), 23798 states have internal predecessors, (68257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:18,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23799 states to 23799 states and 68257 transitions. [2022-01-18 11:18:18,521 INFO L78 Accepts]: Start accepts. Automaton has 23799 states and 68257 transitions. Word has length 263 [2022-01-18 11:18:18,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:18,521 INFO L470 AbstractCegarLoop]: Abstraction has 23799 states and 68257 transitions. [2022-01-18 11:18:18,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:18,522 INFO L276 IsEmpty]: Start isEmpty. Operand 23799 states and 68257 transitions. [2022-01-18 11:18:18,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:18,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:18,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:18,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 11:18:18,555 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:18,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:18,555 INFO L85 PathProgramCache]: Analyzing trace with hash 159807211, now seen corresponding path program 125 times [2022-01-18 11:18:18,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:18,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580570371] [2022-01-18 11:18:18,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:18,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:18,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:18,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580570371] [2022-01-18 11:18:18,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580570371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:18,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:18,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:18,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379015038] [2022-01-18 11:18:18,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:18,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:18,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:18,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:18,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:18,723 INFO L87 Difference]: Start difference. First operand 23799 states and 68257 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:19,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:19,631 INFO L93 Difference]: Finished difference Result 51614 states and 145126 transitions. [2022-01-18 11:18:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 11:18:19,631 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:19,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:19,730 INFO L225 Difference]: With dead ends: 51614 [2022-01-18 11:18:19,730 INFO L226 Difference]: Without dead ends: 51614 [2022-01-18 11:18:19,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=456, Invalid=1706, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:18:19,731 INFO L933 BasicCegarLoop]: 788 mSDtfsCounter, 2455 mSDsluCounter, 6778 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2455 SdHoareTripleChecker+Valid, 7474 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:19,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2455 Valid, 7474 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:19,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51614 states. [2022-01-18 11:18:20,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51614 to 23735. [2022-01-18 11:18:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23735 states, 23734 states have (on average 2.867489677256257) internal successors, (68057), 23734 states have internal predecessors, (68057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23735 states to 23735 states and 68057 transitions. [2022-01-18 11:18:20,242 INFO L78 Accepts]: Start accepts. Automaton has 23735 states and 68057 transitions. Word has length 263 [2022-01-18 11:18:20,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:20,242 INFO L470 AbstractCegarLoop]: Abstraction has 23735 states and 68057 transitions. [2022-01-18 11:18:20,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:20,242 INFO L276 IsEmpty]: Start isEmpty. Operand 23735 states and 68057 transitions. [2022-01-18 11:18:20,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:20,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:20,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:20,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 11:18:20,273 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:20,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:20,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1111970345, now seen corresponding path program 126 times [2022-01-18 11:18:20,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:20,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141240369] [2022-01-18 11:18:20,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:20,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:20,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:20,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141240369] [2022-01-18 11:18:20,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141240369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:20,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:20,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:18:20,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050054042] [2022-01-18 11:18:20,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:20,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:18:20,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:20,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:18:20,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:18:20,459 INFO L87 Difference]: Start difference. First operand 23735 states and 68057 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:21,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:21,229 INFO L93 Difference]: Finished difference Result 31876 states and 90101 transitions. [2022-01-18 11:18:21,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:18:21,229 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:21,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:21,284 INFO L225 Difference]: With dead ends: 31876 [2022-01-18 11:18:21,284 INFO L226 Difference]: Without dead ends: 31876 [2022-01-18 11:18:21,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=388, Invalid=1504, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:18:21,284 INFO L933 BasicCegarLoop]: 628 mSDtfsCounter, 1994 mSDsluCounter, 6512 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 7051 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:21,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1994 Valid, 7051 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:21,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31876 states. [2022-01-18 11:18:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31876 to 23795. [2022-01-18 11:18:21,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23795 states, 23794 states have (on average 2.867025300495923) internal successors, (68218), 23794 states have internal predecessors, (68218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23795 states to 23795 states and 68218 transitions. [2022-01-18 11:18:21,698 INFO L78 Accepts]: Start accepts. Automaton has 23795 states and 68218 transitions. Word has length 263 [2022-01-18 11:18:21,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:21,698 INFO L470 AbstractCegarLoop]: Abstraction has 23795 states and 68218 transitions. [2022-01-18 11:18:21,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 23795 states and 68218 transitions. [2022-01-18 11:18:21,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:21,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:21,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:21,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 11:18:21,732 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:21,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2027459055, now seen corresponding path program 127 times [2022-01-18 11:18:21,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:21,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618155332] [2022-01-18 11:18:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:21,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:21,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:21,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:21,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618155332] [2022-01-18 11:18:21,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618155332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:21,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:21,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:21,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484806468] [2022-01-18 11:18:21,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:21,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:21,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:21,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:21,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:21,884 INFO L87 Difference]: Start difference. First operand 23795 states and 68218 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:22,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:22,782 INFO L93 Difference]: Finished difference Result 62219 states and 175534 transitions. [2022-01-18 11:18:22,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:18:22,782 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:22,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:22,904 INFO L225 Difference]: With dead ends: 62219 [2022-01-18 11:18:22,904 INFO L226 Difference]: Without dead ends: 62219 [2022-01-18 11:18:22,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=659, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:18:22,904 INFO L933 BasicCegarLoop]: 941 mSDtfsCounter, 982 mSDsluCounter, 7282 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 8112 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:22,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [982 Valid, 8112 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:22,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62219 states. [2022-01-18 11:18:23,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62219 to 24183. [2022-01-18 11:18:23,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 24182 states have (on average 2.877718964519064) internal successors, (69589), 24182 states have internal predecessors, (69589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:23,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 69589 transitions. [2022-01-18 11:18:23,572 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 69589 transitions. Word has length 263 [2022-01-18 11:18:23,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:23,572 INFO L470 AbstractCegarLoop]: Abstraction has 24183 states and 69589 transitions. [2022-01-18 11:18:23,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 69589 transitions. [2022-01-18 11:18:23,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:23,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:23,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:23,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 11:18:23,606 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:23,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:23,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1075489223, now seen corresponding path program 128 times [2022-01-18 11:18:23,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:23,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859238615] [2022-01-18 11:18:23,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:23,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:23,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:23,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:23,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859238615] [2022-01-18 11:18:23,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859238615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:23,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:23,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:23,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680169456] [2022-01-18 11:18:23,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:23,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:23,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:23,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:23,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:23,689 INFO L87 Difference]: Start difference. First operand 24183 states and 69589 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:24,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:24,486 INFO L93 Difference]: Finished difference Result 62840 states and 177595 transitions. [2022-01-18 11:18:24,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:18:24,486 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:24,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:24,610 INFO L225 Difference]: With dead ends: 62840 [2022-01-18 11:18:24,610 INFO L226 Difference]: Without dead ends: 62840 [2022-01-18 11:18:24,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:18:24,610 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 977 mSDsluCounter, 7211 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 8067 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:24,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 8067 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:24,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62840 states. [2022-01-18 11:18:25,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62840 to 23855. [2022-01-18 11:18:25,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23855 states, 23854 states have (on average 2.867234006875157) internal successors, (68395), 23854 states have internal predecessors, (68395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:25,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23855 states to 23855 states and 68395 transitions. [2022-01-18 11:18:25,252 INFO L78 Accepts]: Start accepts. Automaton has 23855 states and 68395 transitions. Word has length 263 [2022-01-18 11:18:25,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:25,253 INFO L470 AbstractCegarLoop]: Abstraction has 23855 states and 68395 transitions. [2022-01-18 11:18:25,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:25,253 INFO L276 IsEmpty]: Start isEmpty. Operand 23855 states and 68395 transitions. [2022-01-18 11:18:25,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:25,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:25,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:25,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 11:18:25,286 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:25,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:25,287 INFO L85 PathProgramCache]: Analyzing trace with hash 168953159, now seen corresponding path program 129 times [2022-01-18 11:18:25,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:25,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972431678] [2022-01-18 11:18:25,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:25,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:25,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:25,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972431678] [2022-01-18 11:18:25,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972431678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:25,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:25,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:25,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226916137] [2022-01-18 11:18:25,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:25,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:25,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:25,369 INFO L87 Difference]: Start difference. First operand 23855 states and 68395 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:25,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:25,950 INFO L93 Difference]: Finished difference Result 49828 states and 141398 transitions. [2022-01-18 11:18:25,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:18:25,951 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:25,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:26,046 INFO L225 Difference]: With dead ends: 49828 [2022-01-18 11:18:26,046 INFO L226 Difference]: Without dead ends: 49828 [2022-01-18 11:18:26,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:18:26,047 INFO L933 BasicCegarLoop]: 847 mSDtfsCounter, 700 mSDsluCounter, 5278 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 6058 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:26,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 6058 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:18:26,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49828 states. [2022-01-18 11:18:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49828 to 23823. [2022-01-18 11:18:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23823 states, 23822 states have (on average 2.866887750818571) internal successors, (68295), 23822 states have internal predecessors, (68295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:26,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23823 states to 23823 states and 68295 transitions. [2022-01-18 11:18:26,588 INFO L78 Accepts]: Start accepts. Automaton has 23823 states and 68295 transitions. Word has length 263 [2022-01-18 11:18:26,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:26,588 INFO L470 AbstractCegarLoop]: Abstraction has 23823 states and 68295 transitions. [2022-01-18 11:18:26,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:26,588 INFO L276 IsEmpty]: Start isEmpty. Operand 23823 states and 68295 transitions. [2022-01-18 11:18:26,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:26,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:26,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:26,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 11:18:26,621 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:26,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:26,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1303931503, now seen corresponding path program 130 times [2022-01-18 11:18:26,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:26,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083847902] [2022-01-18 11:18:26,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:26,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:26,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:26,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:26,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083847902] [2022-01-18 11:18:26,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083847902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:26,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:26,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:26,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978113690] [2022-01-18 11:18:26,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:26,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:26,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:26,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:26,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:26,705 INFO L87 Difference]: Start difference. First operand 23823 states and 68295 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:27,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:27,588 INFO L93 Difference]: Finished difference Result 65034 states and 183901 transitions. [2022-01-18 11:18:27,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:18:27,589 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:27,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:27,721 INFO L225 Difference]: With dead ends: 65034 [2022-01-18 11:18:27,721 INFO L226 Difference]: Without dead ends: 65034 [2022-01-18 11:18:27,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=715, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:18:27,722 INFO L933 BasicCegarLoop]: 1020 mSDtfsCounter, 1013 mSDsluCounter, 6185 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 7111 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:27,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1013 Valid, 7111 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:27,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65034 states. [2022-01-18 11:18:28,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65034 to 24183. [2022-01-18 11:18:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 24182 states have (on average 2.877718964519064) internal successors, (69589), 24182 states have internal predecessors, (69589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:28,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 69589 transitions. [2022-01-18 11:18:28,454 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 69589 transitions. Word has length 263 [2022-01-18 11:18:28,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:28,454 INFO L470 AbstractCegarLoop]: Abstraction has 24183 states and 69589 transitions. [2022-01-18 11:18:28,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:28,454 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 69589 transitions. [2022-01-18 11:18:28,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:28,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:28,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:28,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 11:18:28,489 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:28,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:28,489 INFO L85 PathProgramCache]: Analyzing trace with hash -351961671, now seen corresponding path program 131 times [2022-01-18 11:18:28,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:28,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66365784] [2022-01-18 11:18:28,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:28,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:28,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:28,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:28,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66365784] [2022-01-18 11:18:28,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66365784] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:28,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:28,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:28,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368309045] [2022-01-18 11:18:28,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:28,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:28,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:28,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:28,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:28,582 INFO L87 Difference]: Start difference. First operand 24183 states and 69589 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:29,365 INFO L93 Difference]: Finished difference Result 65458 states and 185398 transitions. [2022-01-18 11:18:29,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:18:29,365 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:29,489 INFO L225 Difference]: With dead ends: 65458 [2022-01-18 11:18:29,489 INFO L226 Difference]: Without dead ends: 65458 [2022-01-18 11:18:29,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:18:29,489 INFO L933 BasicCegarLoop]: 979 mSDtfsCounter, 1025 mSDsluCounter, 5924 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 6841 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:29,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1025 Valid, 6841 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:29,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65458 states. [2022-01-18 11:18:30,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65458 to 23855. [2022-01-18 11:18:30,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23855 states, 23854 states have (on average 2.867234006875157) internal successors, (68395), 23854 states have internal predecessors, (68395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:30,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23855 states to 23855 states and 68395 transitions. [2022-01-18 11:18:30,126 INFO L78 Accepts]: Start accepts. Automaton has 23855 states and 68395 transitions. Word has length 263 [2022-01-18 11:18:30,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:30,126 INFO L470 AbstractCegarLoop]: Abstraction has 23855 states and 68395 transitions. [2022-01-18 11:18:30,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:30,126 INFO L276 IsEmpty]: Start isEmpty. Operand 23855 states and 68395 transitions. [2022-01-18 11:18:30,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:30,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:30,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:30,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 11:18:30,157 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:30,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:30,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1046446601, now seen corresponding path program 132 times [2022-01-18 11:18:30,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:30,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298234482] [2022-01-18 11:18:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:30,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:30,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:30,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:30,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298234482] [2022-01-18 11:18:30,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298234482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:30,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:30,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:30,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066437863] [2022-01-18 11:18:30,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:30,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:30,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:30,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:30,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:30,237 INFO L87 Difference]: Start difference. First operand 23855 states and 68395 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:30,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:30,906 INFO L93 Difference]: Finished difference Result 50246 states and 142428 transitions. [2022-01-18 11:18:30,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:18:30,907 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:30,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:31,007 INFO L225 Difference]: With dead ends: 50246 [2022-01-18 11:18:31,007 INFO L226 Difference]: Without dead ends: 50246 [2022-01-18 11:18:31,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:18:31,008 INFO L933 BasicCegarLoop]: 946 mSDtfsCounter, 647 mSDsluCounter, 6506 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 7353 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:31,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 7353 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:31,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50246 states. [2022-01-18 11:18:31,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50246 to 23819. [2022-01-18 11:18:31,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23819 states, 23818 states have (on average 2.866907380972374) internal successors, (68284), 23818 states have internal predecessors, (68284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23819 states to 23819 states and 68284 transitions. [2022-01-18 11:18:31,626 INFO L78 Accepts]: Start accepts. Automaton has 23819 states and 68284 transitions. Word has length 263 [2022-01-18 11:18:31,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:31,627 INFO L470 AbstractCegarLoop]: Abstraction has 23819 states and 68284 transitions. [2022-01-18 11:18:31,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:31,627 INFO L276 IsEmpty]: Start isEmpty. Operand 23819 states and 68284 transitions. [2022-01-18 11:18:31,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:31,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:31,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:31,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 11:18:31,665 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:31,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:31,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1074786611, now seen corresponding path program 133 times [2022-01-18 11:18:31,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:31,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164153843] [2022-01-18 11:18:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:31,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:31,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:31,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:31,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164153843] [2022-01-18 11:18:31,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164153843] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:31,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:31,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:31,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23191562] [2022-01-18 11:18:31,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:31,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:31,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:31,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:31,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:31,756 INFO L87 Difference]: Start difference. First operand 23819 states and 68284 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:32,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:32,785 INFO L93 Difference]: Finished difference Result 65018 states and 183869 transitions. [2022-01-18 11:18:32,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:18:32,785 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:32,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:32,918 INFO L225 Difference]: With dead ends: 65018 [2022-01-18 11:18:32,918 INFO L226 Difference]: Without dead ends: 65018 [2022-01-18 11:18:32,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=201, Invalid=855, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:18:32,918 INFO L933 BasicCegarLoop]: 1086 mSDtfsCounter, 1278 mSDsluCounter, 7112 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 8081 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:32,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1278 Valid, 8081 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:32,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65018 states. [2022-01-18 11:18:33,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65018 to 24251. [2022-01-18 11:18:33,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24251 states, 24250 states have (on average 2.878680412371134) internal successors, (69808), 24250 states have internal predecessors, (69808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24251 states to 24251 states and 69808 transitions. [2022-01-18 11:18:33,554 INFO L78 Accepts]: Start accepts. Automaton has 24251 states and 69808 transitions. Word has length 263 [2022-01-18 11:18:33,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:33,554 INFO L470 AbstractCegarLoop]: Abstraction has 24251 states and 69808 transitions. [2022-01-18 11:18:33,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 24251 states and 69808 transitions. [2022-01-18 11:18:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:33,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:33,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:33,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 11:18:33,588 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:33,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2026756443, now seen corresponding path program 134 times [2022-01-18 11:18:33,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:33,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694590132] [2022-01-18 11:18:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:33,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:33,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:33,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694590132] [2022-01-18 11:18:33,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694590132] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:33,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:33,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:33,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492604722] [2022-01-18 11:18:33,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:33,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:33,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:33,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:33,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:33,673 INFO L87 Difference]: Start difference. First operand 24251 states and 69808 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:34,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:34,542 INFO L93 Difference]: Finished difference Result 65442 states and 185366 transitions. [2022-01-18 11:18:34,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:18:34,542 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:34,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:34,693 INFO L225 Difference]: With dead ends: 65442 [2022-01-18 11:18:34,693 INFO L226 Difference]: Without dead ends: 65442 [2022-01-18 11:18:34,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=594, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:18:34,694 INFO L933 BasicCegarLoop]: 1030 mSDtfsCounter, 1260 mSDsluCounter, 7556 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 8504 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:34,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 8504 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:34,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65442 states. [2022-01-18 11:18:35,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65442 to 23915. [2022-01-18 11:18:35,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23915 states, 23914 states have (on average 2.8679434640796186) internal successors, (68584), 23914 states have internal predecessors, (68584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:35,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23915 states to 23915 states and 68584 transitions. [2022-01-18 11:18:35,348 INFO L78 Accepts]: Start accepts. Automaton has 23915 states and 68584 transitions. Word has length 263 [2022-01-18 11:18:35,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:35,348 INFO L470 AbstractCegarLoop]: Abstraction has 23915 states and 68584 transitions. [2022-01-18 11:18:35,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:35,348 INFO L276 IsEmpty]: Start isEmpty. Operand 23915 states and 68584 transitions. [2022-01-18 11:18:35,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:35,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:35,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:35,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 11:18:35,380 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:35,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:35,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1332271513, now seen corresponding path program 135 times [2022-01-18 11:18:35,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:35,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897840273] [2022-01-18 11:18:35,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:35,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:35,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:35,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:35,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897840273] [2022-01-18 11:18:35,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897840273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:35,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:35,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:35,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608014548] [2022-01-18 11:18:35,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:35,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:35,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:35,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:35,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:35,463 INFO L87 Difference]: Start difference. First operand 23915 states and 68584 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:36,223 INFO L93 Difference]: Finished difference Result 50686 states and 143646 transitions. [2022-01-18 11:18:36,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:18:36,224 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:36,323 INFO L225 Difference]: With dead ends: 50686 [2022-01-18 11:18:36,323 INFO L226 Difference]: Without dead ends: 50686 [2022-01-18 11:18:36,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:18:36,323 INFO L933 BasicCegarLoop]: 1013 mSDtfsCounter, 855 mSDsluCounter, 6682 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 7583 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:36,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 7583 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:36,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50686 states. [2022-01-18 11:18:36,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50686 to 23883. [2022-01-18 11:18:36,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23883 states, 23882 states have (on average 2.8675990285570725) internal successors, (68484), 23882 states have internal predecessors, (68484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23883 states to 23883 states and 68484 transitions. [2022-01-18 11:18:36,848 INFO L78 Accepts]: Start accepts. Automaton has 23883 states and 68484 transitions. Word has length 263 [2022-01-18 11:18:36,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:36,848 INFO L470 AbstractCegarLoop]: Abstraction has 23883 states and 68484 transitions. [2022-01-18 11:18:36,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:36,849 INFO L276 IsEmpty]: Start isEmpty. Operand 23883 states and 68484 transitions. [2022-01-18 11:18:36,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:36,882 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:36,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:36,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 11:18:36,882 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:36,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:36,882 INFO L85 PathProgramCache]: Analyzing trace with hash 726877877, now seen corresponding path program 136 times [2022-01-18 11:18:36,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:36,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995785288] [2022-01-18 11:18:36,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:36,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:36,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:36,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:36,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995785288] [2022-01-18 11:18:36,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995785288] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:36,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:36,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:36,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743901133] [2022-01-18 11:18:36,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:36,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:36,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:36,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:36,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:36,968 INFO L87 Difference]: Start difference. First operand 23883 states and 68484 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:37,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:37,785 INFO L93 Difference]: Finished difference Result 54192 states and 152955 transitions. [2022-01-18 11:18:37,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:18:37,786 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:37,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:37,896 INFO L225 Difference]: With dead ends: 54192 [2022-01-18 11:18:37,896 INFO L226 Difference]: Without dead ends: 54192 [2022-01-18 11:18:37,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:18:37,897 INFO L933 BasicCegarLoop]: 1042 mSDtfsCounter, 970 mSDsluCounter, 6875 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 7791 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:37,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [970 Valid, 7791 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:37,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54192 states. [2022-01-18 11:18:38,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54192 to 23811. [2022-01-18 11:18:38,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23811 states, 23810 states have (on average 2.8669466610667786) internal successors, (68262), 23810 states have internal predecessors, (68262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23811 states to 23811 states and 68262 transitions. [2022-01-18 11:18:38,454 INFO L78 Accepts]: Start accepts. Automaton has 23811 states and 68262 transitions. Word has length 263 [2022-01-18 11:18:38,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:38,455 INFO L470 AbstractCegarLoop]: Abstraction has 23811 states and 68262 transitions. [2022-01-18 11:18:38,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 23811 states and 68262 transitions. [2022-01-18 11:18:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:38,487 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:38,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:38,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 11:18:38,487 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:38,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:38,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1552734575, now seen corresponding path program 137 times [2022-01-18 11:18:38,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:38,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917062491] [2022-01-18 11:18:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:38,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:38,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:38,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:38,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917062491] [2022-01-18 11:18:38,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917062491] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:38,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:38,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:38,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220693790] [2022-01-18 11:18:38,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:38,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:38,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:38,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:38,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:38,573 INFO L87 Difference]: Start difference. First operand 23811 states and 68262 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:39,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:39,548 INFO L93 Difference]: Finished difference Result 65831 states and 186098 transitions. [2022-01-18 11:18:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:18:39,548 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:39,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:39,678 INFO L225 Difference]: With dead ends: 65831 [2022-01-18 11:18:39,678 INFO L226 Difference]: Without dead ends: 65831 [2022-01-18 11:18:39,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=767, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:18:39,679 INFO L933 BasicCegarLoop]: 1022 mSDtfsCounter, 988 mSDsluCounter, 6217 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:39,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 7144 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:39,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65831 states. [2022-01-18 11:18:40,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65831 to 24183. [2022-01-18 11:18:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 24182 states have (on average 2.877718964519064) internal successors, (69589), 24182 states have internal predecessors, (69589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:40,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 69589 transitions. [2022-01-18 11:18:40,347 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 69589 transitions. Word has length 263 [2022-01-18 11:18:40,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:40,347 INFO L470 AbstractCegarLoop]: Abstraction has 24183 states and 69589 transitions. [2022-01-18 11:18:40,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 69589 transitions. [2022-01-18 11:18:40,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:40,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:40,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:40,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 11:18:40,381 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:40,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:40,381 INFO L85 PathProgramCache]: Analyzing trace with hash -600764743, now seen corresponding path program 138 times [2022-01-18 11:18:40,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:40,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265323780] [2022-01-18 11:18:40,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:40,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:40,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:40,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265323780] [2022-01-18 11:18:40,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265323780] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:40,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:40,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:40,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70864557] [2022-01-18 11:18:40,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:40,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:40,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:40,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:40,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:40,471 INFO L87 Difference]: Start difference. First operand 24183 states and 69589 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:41,348 INFO L93 Difference]: Finished difference Result 66452 states and 188159 transitions. [2022-01-18 11:18:41,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:18:41,349 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:41,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:41,487 INFO L225 Difference]: With dead ends: 66452 [2022-01-18 11:18:41,487 INFO L226 Difference]: Without dead ends: 66452 [2022-01-18 11:18:41,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:18:41,488 INFO L933 BasicCegarLoop]: 1063 mSDtfsCounter, 974 mSDsluCounter, 7995 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 8969 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:41,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 8969 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:41,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66452 states. [2022-01-18 11:18:42,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66452 to 23855. [2022-01-18 11:18:42,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23855 states, 23854 states have (on average 2.867234006875157) internal successors, (68395), 23854 states have internal predecessors, (68395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:42,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23855 states to 23855 states and 68395 transitions. [2022-01-18 11:18:42,168 INFO L78 Accepts]: Start accepts. Automaton has 23855 states and 68395 transitions. Word has length 263 [2022-01-18 11:18:42,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:42,168 INFO L470 AbstractCegarLoop]: Abstraction has 23855 states and 68395 transitions. [2022-01-18 11:18:42,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:42,169 INFO L276 IsEmpty]: Start isEmpty. Operand 23855 states and 68395 transitions. [2022-01-18 11:18:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:42,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:42,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:42,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 11:18:42,204 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:42,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:42,205 INFO L85 PathProgramCache]: Analyzing trace with hash 643677639, now seen corresponding path program 139 times [2022-01-18 11:18:42,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:42,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712436100] [2022-01-18 11:18:42,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:42,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:42,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:42,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:42,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712436100] [2022-01-18 11:18:42,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712436100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:42,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:42,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:42,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149326676] [2022-01-18 11:18:42,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:42,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:42,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:42,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:42,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:42,289 INFO L87 Difference]: Start difference. First operand 23855 states and 68395 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:42,951 INFO L93 Difference]: Finished difference Result 50996 states and 144633 transitions. [2022-01-18 11:18:42,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:18:42,951 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:42,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:43,054 INFO L225 Difference]: With dead ends: 50996 [2022-01-18 11:18:43,055 INFO L226 Difference]: Without dead ends: 50996 [2022-01-18 11:18:43,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:18:43,055 INFO L933 BasicCegarLoop]: 909 mSDtfsCounter, 647 mSDsluCounter, 6251 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 7088 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:43,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 7088 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:43,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50996 states. [2022-01-18 11:18:43,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50996 to 23823. [2022-01-18 11:18:43,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23823 states, 23822 states have (on average 2.866887750818571) internal successors, (68295), 23822 states have internal predecessors, (68295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:43,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23823 states to 23823 states and 68295 transitions. [2022-01-18 11:18:43,665 INFO L78 Accepts]: Start accepts. Automaton has 23823 states and 68295 transitions. Word has length 263 [2022-01-18 11:18:43,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:43,665 INFO L470 AbstractCegarLoop]: Abstraction has 23823 states and 68295 transitions. [2022-01-18 11:18:43,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:43,665 INFO L276 IsEmpty]: Start isEmpty. Operand 23823 states and 68295 transitions. [2022-01-18 11:18:43,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:43,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:43,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:43,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 11:18:43,702 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:43,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:43,702 INFO L85 PathProgramCache]: Analyzing trace with hash -829207023, now seen corresponding path program 140 times [2022-01-18 11:18:43,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:43,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639725202] [2022-01-18 11:18:43,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:43,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:43,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:43,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639725202] [2022-01-18 11:18:43,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639725202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:43,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:43,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:43,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120549372] [2022-01-18 11:18:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:43,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:43,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:43,800 INFO L87 Difference]: Start difference. First operand 23823 states and 68295 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:44,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:44,795 INFO L93 Difference]: Finished difference Result 65986 states and 186527 transitions. [2022-01-18 11:18:44,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:18:44,795 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:44,953 INFO L225 Difference]: With dead ends: 65986 [2022-01-18 11:18:44,953 INFO L226 Difference]: Without dead ends: 65986 [2022-01-18 11:18:44,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:18:44,953 INFO L933 BasicCegarLoop]: 1004 mSDtfsCounter, 960 mSDsluCounter, 6871 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 7781 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:44,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 7781 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:45,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65986 states. [2022-01-18 11:18:45,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65986 to 24183. [2022-01-18 11:18:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 24182 states have (on average 2.877718964519064) internal successors, (69589), 24182 states have internal predecessors, (69589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:45,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 69589 transitions. [2022-01-18 11:18:45,732 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 69589 transitions. Word has length 263 [2022-01-18 11:18:45,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:45,732 INFO L470 AbstractCegarLoop]: Abstraction has 24183 states and 69589 transitions. [2022-01-18 11:18:45,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:45,732 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 69589 transitions. [2022-01-18 11:18:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:45,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:45,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:45,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 11:18:45,768 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:45,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:45,769 INFO L85 PathProgramCache]: Analyzing trace with hash 122762809, now seen corresponding path program 141 times [2022-01-18 11:18:45,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:45,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250294666] [2022-01-18 11:18:45,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:45,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:45,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:45,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250294666] [2022-01-18 11:18:45,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250294666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:45,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:45,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:45,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706349812] [2022-01-18 11:18:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:45,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:45,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:45,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:45,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:45,862 INFO L87 Difference]: Start difference. First operand 24183 states and 69589 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:46,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:46,737 INFO L93 Difference]: Finished difference Result 66350 states and 187863 transitions. [2022-01-18 11:18:46,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:18:46,737 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:46,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:46,884 INFO L225 Difference]: With dead ends: 66350 [2022-01-18 11:18:46,884 INFO L226 Difference]: Without dead ends: 66350 [2022-01-18 11:18:46,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:18:46,884 INFO L933 BasicCegarLoop]: 996 mSDtfsCounter, 943 mSDsluCounter, 7520 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 8451 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:46,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [943 Valid, 8451 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:46,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66350 states. [2022-01-18 11:18:47,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66350 to 23855. [2022-01-18 11:18:47,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23855 states, 23854 states have (on average 2.867234006875157) internal successors, (68395), 23854 states have internal predecessors, (68395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:47,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23855 states to 23855 states and 68395 transitions. [2022-01-18 11:18:47,716 INFO L78 Accepts]: Start accepts. Automaton has 23855 states and 68395 transitions. Word has length 263 [2022-01-18 11:18:47,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:47,716 INFO L470 AbstractCegarLoop]: Abstraction has 23855 states and 68395 transitions. [2022-01-18 11:18:47,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 23855 states and 68395 transitions. [2022-01-18 11:18:47,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:47,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:47,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:47,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 11:18:47,751 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:47,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:47,751 INFO L85 PathProgramCache]: Analyzing trace with hash -571722121, now seen corresponding path program 142 times [2022-01-18 11:18:47,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:47,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693970346] [2022-01-18 11:18:47,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:47,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:47,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:47,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:47,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693970346] [2022-01-18 11:18:47,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693970346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:47,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:47,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:47,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565262320] [2022-01-18 11:18:47,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:47,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:47,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:47,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:47,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:47,833 INFO L87 Difference]: Start difference. First operand 23855 states and 68395 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:48,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:48,485 INFO L93 Difference]: Finished difference Result 51254 states and 145204 transitions. [2022-01-18 11:18:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:18:48,486 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:48,593 INFO L225 Difference]: With dead ends: 51254 [2022-01-18 11:18:48,594 INFO L226 Difference]: Without dead ends: 51254 [2022-01-18 11:18:48,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:18:48,594 INFO L933 BasicCegarLoop]: 932 mSDtfsCounter, 649 mSDsluCounter, 5695 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:48,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 6543 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:48,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51254 states. [2022-01-18 11:18:49,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51254 to 23819. [2022-01-18 11:18:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23819 states, 23818 states have (on average 2.866907380972374) internal successors, (68284), 23818 states have internal predecessors, (68284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:49,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23819 states to 23819 states and 68284 transitions. [2022-01-18 11:18:49,173 INFO L78 Accepts]: Start accepts. Automaton has 23819 states and 68284 transitions. Word has length 263 [2022-01-18 11:18:49,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:49,173 INFO L470 AbstractCegarLoop]: Abstraction has 23819 states and 68284 transitions. [2022-01-18 11:18:49,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:49,173 INFO L276 IsEmpty]: Start isEmpty. Operand 23819 states and 68284 transitions. [2022-01-18 11:18:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:49,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:49,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:49,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 11:18:49,205 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:49,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:49,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1083051725, now seen corresponding path program 143 times [2022-01-18 11:18:49,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:49,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095120354] [2022-01-18 11:18:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:49,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:49,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:49,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095120354] [2022-01-18 11:18:49,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095120354] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:49,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:49,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:49,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14726508] [2022-01-18 11:18:49,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:49,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:49,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:49,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:49,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:49,292 INFO L87 Difference]: Start difference. First operand 23819 states and 68284 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:50,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:50,360 INFO L93 Difference]: Finished difference Result 79686 states and 224567 transitions. [2022-01-18 11:18:50,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:18:50,360 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:50,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:50,508 INFO L225 Difference]: With dead ends: 79686 [2022-01-18 11:18:50,509 INFO L226 Difference]: Without dead ends: 79686 [2022-01-18 11:18:50,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=235, Invalid=1025, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:18:50,509 INFO L933 BasicCegarLoop]: 1070 mSDtfsCounter, 1432 mSDsluCounter, 7991 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 8947 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:50,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1432 Valid, 8947 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:18:50,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79686 states. [2022-01-18 11:18:51,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79686 to 24251. [2022-01-18 11:18:51,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24251 states, 24250 states have (on average 2.878680412371134) internal successors, (69808), 24250 states have internal predecessors, (69808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:51,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24251 states to 24251 states and 69808 transitions. [2022-01-18 11:18:51,507 INFO L78 Accepts]: Start accepts. Automaton has 24251 states and 69808 transitions. Word has length 263 [2022-01-18 11:18:51,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:51,507 INFO L470 AbstractCegarLoop]: Abstraction has 24251 states and 69808 transitions. [2022-01-18 11:18:51,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:51,507 INFO L276 IsEmpty]: Start isEmpty. Operand 24251 states and 69808 transitions. [2022-01-18 11:18:51,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:51,538 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:51,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:51,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 11:18:51,539 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:51,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:51,539 INFO L85 PathProgramCache]: Analyzing trace with hash -131081893, now seen corresponding path program 144 times [2022-01-18 11:18:51,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:51,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955254409] [2022-01-18 11:18:51,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:51,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:51,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:51,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:51,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955254409] [2022-01-18 11:18:51,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955254409] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:51,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:51,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:51,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251891553] [2022-01-18 11:18:51,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:51,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:51,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:51,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:51,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:51,625 INFO L87 Difference]: Start difference. First operand 24251 states and 69808 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:52,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:52,575 INFO L93 Difference]: Finished difference Result 80166 states and 226305 transitions. [2022-01-18 11:18:52,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:18:52,576 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:52,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:52,734 INFO L225 Difference]: With dead ends: 80166 [2022-01-18 11:18:52,734 INFO L226 Difference]: Without dead ends: 80166 [2022-01-18 11:18:52,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=846, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:18:52,735 INFO L933 BasicCegarLoop]: 1126 mSDtfsCounter, 1387 mSDsluCounter, 7233 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 8277 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:52,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1387 Valid, 8277 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:52,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80166 states. [2022-01-18 11:18:53,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80166 to 23915. [2022-01-18 11:18:53,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23915 states, 23914 states have (on average 2.8679434640796186) internal successors, (68584), 23914 states have internal predecessors, (68584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:53,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23915 states to 23915 states and 68584 transitions. [2022-01-18 11:18:53,631 INFO L78 Accepts]: Start accepts. Automaton has 23915 states and 68584 transitions. Word has length 263 [2022-01-18 11:18:53,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:53,631 INFO L470 AbstractCegarLoop]: Abstraction has 23915 states and 68584 transitions. [2022-01-18 11:18:53,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:53,631 INFO L276 IsEmpty]: Start isEmpty. Operand 23915 states and 68584 transitions. [2022-01-18 11:18:53,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:53,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:53,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:53,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 11:18:53,662 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:53,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:53,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1113360489, now seen corresponding path program 145 times [2022-01-18 11:18:53,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:53,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321265940] [2022-01-18 11:18:53,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:53,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:53,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:53,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321265940] [2022-01-18 11:18:53,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321265940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:53,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:53,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:53,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715282450] [2022-01-18 11:18:53,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:53,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:53,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:53,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:53,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:53,743 INFO L87 Difference]: Start difference. First operand 23915 states and 68584 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:54,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:54,487 INFO L93 Difference]: Finished difference Result 64866 states and 183224 transitions. [2022-01-18 11:18:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:18:54,488 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:54,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:54,614 INFO L225 Difference]: With dead ends: 64866 [2022-01-18 11:18:54,615 INFO L226 Difference]: Without dead ends: 64866 [2022-01-18 11:18:54,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:18:54,615 INFO L933 BasicCegarLoop]: 972 mSDtfsCounter, 1061 mSDsluCounter, 5760 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 6664 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:54,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 6664 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:54,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64866 states. [2022-01-18 11:18:55,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64866 to 23883. [2022-01-18 11:18:55,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23883 states, 23882 states have (on average 2.8675990285570725) internal successors, (68484), 23882 states have internal predecessors, (68484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23883 states to 23883 states and 68484 transitions. [2022-01-18 11:18:55,449 INFO L78 Accepts]: Start accepts. Automaton has 23883 states and 68484 transitions. Word has length 263 [2022-01-18 11:18:55,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:55,449 INFO L470 AbstractCegarLoop]: Abstraction has 23883 states and 68484 transitions. [2022-01-18 11:18:55,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 23883 states and 68484 transitions. [2022-01-18 11:18:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:55,480 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:55,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:55,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 11:18:55,480 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:55,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:55,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1073108613, now seen corresponding path program 146 times [2022-01-18 11:18:55,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:55,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758437927] [2022-01-18 11:18:55,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:55,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:55,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:55,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:55,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758437927] [2022-01-18 11:18:55,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758437927] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:55,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:55,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:55,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933552057] [2022-01-18 11:18:55,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:55,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:55,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:55,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:55,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:55,565 INFO L87 Difference]: Start difference. First operand 23883 states and 68484 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:56,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:56,381 INFO L93 Difference]: Finished difference Result 67801 states and 190706 transitions. [2022-01-18 11:18:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:18:56,382 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:56,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:56,513 INFO L225 Difference]: With dead ends: 67801 [2022-01-18 11:18:56,513 INFO L226 Difference]: Without dead ends: 67801 [2022-01-18 11:18:56,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:18:56,513 INFO L933 BasicCegarLoop]: 1013 mSDtfsCounter, 1136 mSDsluCounter, 6863 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 7789 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:56,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1136 Valid, 7789 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:56,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67801 states. [2022-01-18 11:18:57,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67801 to 23795. [2022-01-18 11:18:57,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23795 states, 23794 states have (on average 2.867025300495923) internal successors, (68218), 23794 states have internal predecessors, (68218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:57,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23795 states to 23795 states and 68218 transitions. [2022-01-18 11:18:57,249 INFO L78 Accepts]: Start accepts. Automaton has 23795 states and 68218 transitions. Word has length 263 [2022-01-18 11:18:57,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:57,249 INFO L470 AbstractCegarLoop]: Abstraction has 23795 states and 68218 transitions. [2022-01-18 11:18:57,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 23795 states and 68218 transitions. [2022-01-18 11:18:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:57,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:57,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:57,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 11:18:57,280 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:57,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2115743377, now seen corresponding path program 147 times [2022-01-18 11:18:57,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:57,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137903044] [2022-01-18 11:18:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:57,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:57,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:57,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137903044] [2022-01-18 11:18:57,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137903044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:57,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:57,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:57,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960508849] [2022-01-18 11:18:57,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:57,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:57,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:57,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:57,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:57,371 INFO L87 Difference]: Start difference. First operand 23795 states and 68218 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:58,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:58,020 INFO L93 Difference]: Finished difference Result 46547 states and 131477 transitions. [2022-01-18 11:18:58,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:18:58,020 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:58,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:58,103 INFO L225 Difference]: With dead ends: 46547 [2022-01-18 11:18:58,104 INFO L226 Difference]: Without dead ends: 46547 [2022-01-18 11:18:58,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:18:58,104 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 742 mSDsluCounter, 6278 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 7087 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:58,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [742 Valid, 7087 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:18:58,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46547 states. [2022-01-18 11:18:58,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46547 to 24167. [2022-01-18 11:18:58,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24167 states, 24166 states have (on average 2.8778035256144996) internal successors, (69545), 24166 states have internal predecessors, (69545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:58,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24167 states to 24167 states and 69545 transitions. [2022-01-18 11:18:58,699 INFO L78 Accepts]: Start accepts. Automaton has 24167 states and 69545 transitions. Word has length 263 [2022-01-18 11:18:58,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:58,699 INFO L470 AbstractCegarLoop]: Abstraction has 24167 states and 69545 transitions. [2022-01-18 11:18:58,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:58,700 INFO L276 IsEmpty]: Start isEmpty. Operand 24167 states and 69545 transitions. [2022-01-18 11:18:58,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:18:58,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:58,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:58,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 11:18:58,731 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:58,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:58,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1227254087, now seen corresponding path program 148 times [2022-01-18 11:18:58,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:58,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204932840] [2022-01-18 11:18:58,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:58,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:58,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:58,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204932840] [2022-01-18 11:18:58,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204932840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:58,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:58,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:18:58,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395200377] [2022-01-18 11:18:58,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:58,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:18:58,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:58,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:18:58,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:18:58,814 INFO L87 Difference]: Start difference. First operand 24167 states and 69545 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:59,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:59,399 INFO L93 Difference]: Finished difference Result 47411 states and 134118 transitions. [2022-01-18 11:18:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:18:59,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:18:59,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:59,483 INFO L225 Difference]: With dead ends: 47411 [2022-01-18 11:18:59,483 INFO L226 Difference]: Without dead ends: 47411 [2022-01-18 11:18:59,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:18:59,483 INFO L933 BasicCegarLoop]: 909 mSDtfsCounter, 729 mSDsluCounter, 6294 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 7136 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:59,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [729 Valid, 7136 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:18:59,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47411 states. [2022-01-18 11:19:00,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47411 to 23839. [2022-01-18 11:19:00,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23839 states, 23838 states have (on average 2.8673126940179547) internal successors, (68351), 23838 states have internal predecessors, (68351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:00,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23839 states to 23839 states and 68351 transitions. [2022-01-18 11:19:00,104 INFO L78 Accepts]: Start accepts. Automaton has 23839 states and 68351 transitions. Word has length 263 [2022-01-18 11:19:00,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:00,104 INFO L470 AbstractCegarLoop]: Abstraction has 23839 states and 68351 transitions. [2022-01-18 11:19:00,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:00,104 INFO L276 IsEmpty]: Start isEmpty. Operand 23839 states and 68351 transitions. [2022-01-18 11:19:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:00,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:00,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:00,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 11:19:00,137 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:00,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:00,138 INFO L85 PathProgramCache]: Analyzing trace with hash 17188295, now seen corresponding path program 149 times [2022-01-18 11:19:00,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:00,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815029375] [2022-01-18 11:19:00,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:00,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:00,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:00,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:00,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815029375] [2022-01-18 11:19:00,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815029375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:00,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:00,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:00,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670902830] [2022-01-18 11:19:00,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:00,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:00,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:00,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:00,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:00,226 INFO L87 Difference]: Start difference. First operand 23839 states and 68351 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:00,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:00,665 INFO L93 Difference]: Finished difference Result 32111 states and 91029 transitions. [2022-01-18 11:19:00,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:19:00,675 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:00,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:00,733 INFO L225 Difference]: With dead ends: 32111 [2022-01-18 11:19:00,733 INFO L226 Difference]: Without dead ends: 32111 [2022-01-18 11:19:00,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:19:00,734 INFO L933 BasicCegarLoop]: 749 mSDtfsCounter, 430 mSDsluCounter, 5304 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 5994 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:00,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 5994 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:19:00,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32111 states. [2022-01-18 11:19:01,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32111 to 23807. [2022-01-18 11:19:01,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23807 states, 23806 states have (on average 2.86696631101403) internal successors, (68251), 23806 states have internal predecessors, (68251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:01,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23807 states to 23807 states and 68251 transitions. [2022-01-18 11:19:01,237 INFO L78 Accepts]: Start accepts. Automaton has 23807 states and 68251 transitions. Word has length 263 [2022-01-18 11:19:01,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:01,238 INFO L470 AbstractCegarLoop]: Abstraction has 23807 states and 68251 transitions. [2022-01-18 11:19:01,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:01,238 INFO L276 IsEmpty]: Start isEmpty. Operand 23807 states and 68251 transitions. [2022-01-18 11:19:01,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:01,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:01,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:01,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 11:19:01,270 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:01,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:01,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1455696367, now seen corresponding path program 150 times [2022-01-18 11:19:01,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:01,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960303235] [2022-01-18 11:19:01,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:01,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:01,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:01,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960303235] [2022-01-18 11:19:01,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960303235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:01,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:01,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:01,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987651460] [2022-01-18 11:19:01,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:01,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:01,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:01,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:01,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:01,353 INFO L87 Difference]: Start difference. First operand 23807 states and 68251 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:01,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:01,959 INFO L93 Difference]: Finished difference Result 46366 states and 130990 transitions. [2022-01-18 11:19:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:19:01,959 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:01,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:02,041 INFO L225 Difference]: With dead ends: 46366 [2022-01-18 11:19:02,042 INFO L226 Difference]: Without dead ends: 46366 [2022-01-18 11:19:02,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:19:02,042 INFO L933 BasicCegarLoop]: 826 mSDtfsCounter, 685 mSDsluCounter, 5127 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 5883 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:02,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [685 Valid, 5883 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:19:02,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46366 states. [2022-01-18 11:19:02,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46366 to 24167. [2022-01-18 11:19:02,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24167 states, 24166 states have (on average 2.8778035256144996) internal successors, (69545), 24166 states have internal predecessors, (69545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24167 states to 24167 states and 69545 transitions. [2022-01-18 11:19:02,711 INFO L78 Accepts]: Start accepts. Automaton has 24167 states and 69545 transitions. Word has length 263 [2022-01-18 11:19:02,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:02,711 INFO L470 AbstractCegarLoop]: Abstraction has 24167 states and 69545 transitions. [2022-01-18 11:19:02,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:02,711 INFO L276 IsEmpty]: Start isEmpty. Operand 24167 states and 69545 transitions. [2022-01-18 11:19:02,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:02,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:02,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:02,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 11:19:02,744 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:02,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:02,744 INFO L85 PathProgramCache]: Analyzing trace with hash -503726535, now seen corresponding path program 151 times [2022-01-18 11:19:02,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:02,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027866706] [2022-01-18 11:19:02,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:02,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:02,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:02,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:02,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027866706] [2022-01-18 11:19:02,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027866706] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:02,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:02,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:02,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777807885] [2022-01-18 11:19:02,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:02,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:02,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:02,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:02,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:02,837 INFO L87 Difference]: Start difference. First operand 24167 states and 69545 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:03,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:03,400 INFO L93 Difference]: Finished difference Result 46973 states and 132906 transitions. [2022-01-18 11:19:03,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:19:03,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:03,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:03,484 INFO L225 Difference]: With dead ends: 46973 [2022-01-18 11:19:03,484 INFO L226 Difference]: Without dead ends: 46973 [2022-01-18 11:19:03,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:19:03,484 INFO L933 BasicCegarLoop]: 804 mSDtfsCounter, 698 mSDsluCounter, 5567 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 6322 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:03,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [698 Valid, 6322 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:19:03,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46973 states. [2022-01-18 11:19:04,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46973 to 23839. [2022-01-18 11:19:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23839 states, 23838 states have (on average 2.8673126940179547) internal successors, (68351), 23838 states have internal predecessors, (68351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23839 states to 23839 states and 68351 transitions. [2022-01-18 11:19:04,131 INFO L78 Accepts]: Start accepts. Automaton has 23839 states and 68351 transitions. Word has length 263 [2022-01-18 11:19:04,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:04,131 INFO L470 AbstractCegarLoop]: Abstraction has 23839 states and 68351 transitions. [2022-01-18 11:19:04,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:04,131 INFO L276 IsEmpty]: Start isEmpty. Operand 23839 states and 68351 transitions. [2022-01-18 11:19:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:04,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:04,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:04,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 11:19:04,162 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1198211465, now seen corresponding path program 152 times [2022-01-18 11:19:04,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:04,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132883631] [2022-01-18 11:19:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:04,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:04,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:04,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:04,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132883631] [2022-01-18 11:19:04,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132883631] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:04,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:04,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:04,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043757146] [2022-01-18 11:19:04,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:04,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:04,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:04,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:04,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:04,241 INFO L87 Difference]: Start difference. First operand 23839 states and 68351 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:04,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:04,695 INFO L93 Difference]: Finished difference Result 31634 states and 89667 transitions. [2022-01-18 11:19:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:19:04,696 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:04,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:04,755 INFO L225 Difference]: With dead ends: 31634 [2022-01-18 11:19:04,755 INFO L226 Difference]: Without dead ends: 31634 [2022-01-18 11:19:04,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:19:04,756 INFO L933 BasicCegarLoop]: 716 mSDtfsCounter, 444 mSDsluCounter, 4528 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:04,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 5181 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:19:04,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31634 states. [2022-01-18 11:19:05,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31634 to 23803. [2022-01-18 11:19:05,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23803 states, 23802 states have (on average 2.8669859675657507) internal successors, (68240), 23802 states have internal predecessors, (68240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23803 states to 23803 states and 68240 transitions. [2022-01-18 11:19:05,360 INFO L78 Accepts]: Start accepts. Automaton has 23803 states and 68240 transitions. Word has length 263 [2022-01-18 11:19:05,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:05,360 INFO L470 AbstractCegarLoop]: Abstraction has 23803 states and 68240 transitions. [2022-01-18 11:19:05,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:05,360 INFO L276 IsEmpty]: Start isEmpty. Operand 23803 states and 68240 transitions. [2022-01-18 11:19:05,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:05,392 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:05,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:05,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 11:19:05,392 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:05,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:05,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1709541069, now seen corresponding path program 153 times [2022-01-18 11:19:05,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:05,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073752261] [2022-01-18 11:19:05,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:05,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:05,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:05,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:05,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073752261] [2022-01-18 11:19:05,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073752261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:05,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:05,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:05,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458497830] [2022-01-18 11:19:05,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:05,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:05,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:05,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:05,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:05,476 INFO L87 Difference]: Start difference. First operand 23803 states and 68240 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:06,415 INFO L93 Difference]: Finished difference Result 63566 states and 179282 transitions. [2022-01-18 11:19:06,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:19:06,416 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:06,533 INFO L225 Difference]: With dead ends: 63566 [2022-01-18 11:19:06,533 INFO L226 Difference]: Without dead ends: 63566 [2022-01-18 11:19:06,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:19:06,534 INFO L933 BasicCegarLoop]: 1023 mSDtfsCounter, 1070 mSDsluCounter, 7872 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 8782 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:06,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 8782 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:06,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63566 states. [2022-01-18 11:19:07,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63566 to 24235. [2022-01-18 11:19:07,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24235 states, 24234 states have (on average 2.878765370966411) internal successors, (69764), 24234 states have internal predecessors, (69764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:07,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24235 states to 24235 states and 69764 transitions. [2022-01-18 11:19:07,267 INFO L78 Accepts]: Start accepts. Automaton has 24235 states and 69764 transitions. Word has length 263 [2022-01-18 11:19:07,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:07,267 INFO L470 AbstractCegarLoop]: Abstraction has 24235 states and 69764 transitions. [2022-01-18 11:19:07,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:07,267 INFO L276 IsEmpty]: Start isEmpty. Operand 24235 states and 69764 transitions. [2022-01-18 11:19:07,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:07,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:07,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:07,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 11:19:07,299 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:07,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:07,299 INFO L85 PathProgramCache]: Analyzing trace with hash -757571237, now seen corresponding path program 154 times [2022-01-18 11:19:07,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:07,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4820805] [2022-01-18 11:19:07,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:07,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:07,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:07,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:07,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4820805] [2022-01-18 11:19:07,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4820805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:07,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:07,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:07,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949022643] [2022-01-18 11:19:07,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:07,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:07,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:07,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:07,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:07,383 INFO L87 Difference]: Start difference. First operand 24235 states and 69764 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:08,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:08,136 INFO L93 Difference]: Finished difference Result 64349 states and 181761 transitions. [2022-01-18 11:19:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:19:08,136 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:08,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:08,255 INFO L225 Difference]: With dead ends: 64349 [2022-01-18 11:19:08,255 INFO L226 Difference]: Without dead ends: 64349 [2022-01-18 11:19:08,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:19:08,256 INFO L933 BasicCegarLoop]: 1062 mSDtfsCounter, 1028 mSDsluCounter, 6306 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 7294 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:08,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1028 Valid, 7294 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:08,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64349 states. [2022-01-18 11:19:08,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64349 to 23899. [2022-01-18 11:19:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23899 states, 23898 states have (on average 2.8680224286551175) internal successors, (68540), 23898 states have internal predecessors, (68540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:08,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23899 states to 23899 states and 68540 transitions. [2022-01-18 11:19:08,989 INFO L78 Accepts]: Start accepts. Automaton has 23899 states and 68540 transitions. Word has length 263 [2022-01-18 11:19:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:08,989 INFO L470 AbstractCegarLoop]: Abstraction has 23899 states and 68540 transitions. [2022-01-18 11:19:08,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 23899 states and 68540 transitions. [2022-01-18 11:19:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:09,020 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:09,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:09,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 11:19:09,021 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:09,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:09,021 INFO L85 PathProgramCache]: Analyzing trace with hash 486871145, now seen corresponding path program 155 times [2022-01-18 11:19:09,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:09,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410069899] [2022-01-18 11:19:09,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:09,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:09,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:09,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:09,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410069899] [2022-01-18 11:19:09,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410069899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:09,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:09,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:09,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514792502] [2022-01-18 11:19:09,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:09,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:09,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:09,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:09,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:09,108 INFO L87 Difference]: Start difference. First operand 23899 states and 68540 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:09,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:09,871 INFO L93 Difference]: Finished difference Result 49049 states and 138680 transitions. [2022-01-18 11:19:09,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:19:09,872 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:09,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:09,949 INFO L225 Difference]: With dead ends: 49049 [2022-01-18 11:19:09,950 INFO L226 Difference]: Without dead ends: 49049 [2022-01-18 11:19:09,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:19:09,950 INFO L933 BasicCegarLoop]: 908 mSDtfsCounter, 702 mSDsluCounter, 5596 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 6438 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:09,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [702 Valid, 6438 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:10,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49049 states. [2022-01-18 11:19:10,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49049 to 23867. [2022-01-18 11:19:10,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23867 states, 23866 states have (on average 2.8676778680968744) internal successors, (68440), 23866 states have internal predecessors, (68440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23867 states to 23867 states and 68440 transitions. [2022-01-18 11:19:10,428 INFO L78 Accepts]: Start accepts. Automaton has 23867 states and 68440 transitions. Word has length 263 [2022-01-18 11:19:10,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:10,428 INFO L470 AbstractCegarLoop]: Abstraction has 23867 states and 68440 transitions. [2022-01-18 11:19:10,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:10,429 INFO L276 IsEmpty]: Start isEmpty. Operand 23867 states and 68440 transitions. [2022-01-18 11:19:10,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:10,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:10,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:10,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 11:19:10,460 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:10,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:10,460 INFO L85 PathProgramCache]: Analyzing trace with hash 446619269, now seen corresponding path program 156 times [2022-01-18 11:19:10,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:10,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092955685] [2022-01-18 11:19:10,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:10,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:10,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:10,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:10,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092955685] [2022-01-18 11:19:10,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092955685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:10,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:10,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:10,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555439258] [2022-01-18 11:19:10,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:10,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:10,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:10,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:10,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:10,547 INFO L87 Difference]: Start difference. First operand 23867 states and 68440 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:11,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:11,337 INFO L93 Difference]: Finished difference Result 51984 states and 146162 transitions. [2022-01-18 11:19:11,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:19:11,338 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:11,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:11,436 INFO L225 Difference]: With dead ends: 51984 [2022-01-18 11:19:11,437 INFO L226 Difference]: Without dead ends: 51984 [2022-01-18 11:19:11,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:19:11,437 INFO L933 BasicCegarLoop]: 949 mSDtfsCounter, 806 mSDsluCounter, 6563 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 7431 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:11,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [806 Valid, 7431 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:11,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51984 states. [2022-01-18 11:19:11,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51984 to 23795. [2022-01-18 11:19:11,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23795 states, 23794 states have (on average 2.867025300495923) internal successors, (68218), 23794 states have internal predecessors, (68218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:12,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23795 states to 23795 states and 68218 transitions. [2022-01-18 11:19:12,034 INFO L78 Accepts]: Start accepts. Automaton has 23795 states and 68218 transitions. Word has length 263 [2022-01-18 11:19:12,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:12,034 INFO L470 AbstractCegarLoop]: Abstraction has 23795 states and 68218 transitions. [2022-01-18 11:19:12,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:12,035 INFO L276 IsEmpty]: Start isEmpty. Operand 23795 states and 68218 transitions. [2022-01-18 11:19:12,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:12,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:12,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:12,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 11:19:12,065 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:12,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1315888299, now seen corresponding path program 157 times [2022-01-18 11:19:12,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:12,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375163133] [2022-01-18 11:19:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:12,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:12,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:12,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:12,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375163133] [2022-01-18 11:19:12,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375163133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:12,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:12,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:12,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490418814] [2022-01-18 11:19:12,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:12,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:12,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:12,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:12,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:12,167 INFO L87 Difference]: Start difference. First operand 23795 states and 68218 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:12,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:12,943 INFO L93 Difference]: Finished difference Result 46377 states and 130989 transitions. [2022-01-18 11:19:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:19:12,943 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:12,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:13,024 INFO L225 Difference]: With dead ends: 46377 [2022-01-18 11:19:13,024 INFO L226 Difference]: Without dead ends: 46377 [2022-01-18 11:19:13,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:19:13,025 INFO L933 BasicCegarLoop]: 894 mSDtfsCounter, 924 mSDsluCounter, 6745 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 7531 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:13,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [924 Valid, 7531 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:13,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46377 states. [2022-01-18 11:19:13,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46377 to 24223. [2022-01-18 11:19:13,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24223 states, 24222 states have (on average 2.878829163570308) internal successors, (69731), 24222 states have internal predecessors, (69731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:13,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24223 states to 24223 states and 69731 transitions. [2022-01-18 11:19:13,553 INFO L78 Accepts]: Start accepts. Automaton has 24223 states and 69731 transitions. Word has length 263 [2022-01-18 11:19:13,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:13,553 INFO L470 AbstractCegarLoop]: Abstraction has 24223 states and 69731 transitions. [2022-01-18 11:19:13,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:13,553 INFO L276 IsEmpty]: Start isEmpty. Operand 24223 states and 69731 transitions. [2022-01-18 11:19:13,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:13,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:13,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:13,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 11:19:13,588 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:13,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:13,588 INFO L85 PathProgramCache]: Analyzing trace with hash -363918467, now seen corresponding path program 158 times [2022-01-18 11:19:13,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:13,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686346325] [2022-01-18 11:19:13,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:13,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:13,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:13,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:13,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686346325] [2022-01-18 11:19:13,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686346325] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:13,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:13,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:13,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901353893] [2022-01-18 11:19:13,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:13,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:13,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:13,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:13,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:13,681 INFO L87 Difference]: Start difference. First operand 24223 states and 69731 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:14,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:14,370 INFO L93 Difference]: Finished difference Result 47247 states and 133642 transitions. [2022-01-18 11:19:14,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:19:14,371 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:14,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:14,452 INFO L225 Difference]: With dead ends: 47247 [2022-01-18 11:19:14,452 INFO L226 Difference]: Without dead ends: 47247 [2022-01-18 11:19:14,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:19:14,452 INFO L933 BasicCegarLoop]: 874 mSDtfsCounter, 878 mSDsluCounter, 5854 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 6656 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:14,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [878 Valid, 6656 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:14,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47247 states. [2022-01-18 11:19:14,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47247 to 23883. [2022-01-18 11:19:14,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23883 states, 23882 states have (on average 2.8679340088769787) internal successors, (68492), 23882 states have internal predecessors, (68492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23883 states to 23883 states and 68492 transitions. [2022-01-18 11:19:14,991 INFO L78 Accepts]: Start accepts. Automaton has 23883 states and 68492 transitions. Word has length 263 [2022-01-18 11:19:14,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:14,991 INFO L470 AbstractCegarLoop]: Abstraction has 23883 states and 68492 transitions. [2022-01-18 11:19:14,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand 23883 states and 68492 transitions. [2022-01-18 11:19:15,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:15,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:15,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:15,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 11:19:15,026 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:15,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:15,026 INFO L85 PathProgramCache]: Analyzing trace with hash 880523915, now seen corresponding path program 159 times [2022-01-18 11:19:15,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:15,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892190928] [2022-01-18 11:19:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:15,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:15,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:15,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:15,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892190928] [2022-01-18 11:19:15,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892190928] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:15,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:15,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:15,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920959662] [2022-01-18 11:19:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:15,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:15,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:15,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:15,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:15,109 INFO L87 Difference]: Start difference. First operand 23883 states and 68492 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:15,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:15,704 INFO L93 Difference]: Finished difference Result 47814 states and 135271 transitions. [2022-01-18 11:19:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:19:15,705 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:15,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:15,781 INFO L225 Difference]: With dead ends: 47814 [2022-01-18 11:19:15,781 INFO L226 Difference]: Without dead ends: 47814 [2022-01-18 11:19:15,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:19:15,781 INFO L933 BasicCegarLoop]: 841 mSDtfsCounter, 634 mSDsluCounter, 5181 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 5957 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:15,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 5957 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:19:15,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47814 states. [2022-01-18 11:19:16,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47814 to 23851. [2022-01-18 11:19:16,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23851 states, 23850 states have (on average 2.8675890985324948) internal successors, (68392), 23850 states have internal predecessors, (68392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:16,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23851 states to 23851 states and 68392 transitions. [2022-01-18 11:19:16,263 INFO L78 Accepts]: Start accepts. Automaton has 23851 states and 68392 transitions. Word has length 263 [2022-01-18 11:19:16,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:16,263 INFO L470 AbstractCegarLoop]: Abstraction has 23851 states and 68392 transitions. [2022-01-18 11:19:16,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:16,264 INFO L276 IsEmpty]: Start isEmpty. Operand 23851 states and 68392 transitions. [2022-01-18 11:19:16,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:16,294 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:16,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:16,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 11:19:16,294 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:16,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:16,294 INFO L85 PathProgramCache]: Analyzing trace with hash 840272039, now seen corresponding path program 160 times [2022-01-18 11:19:16,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:16,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915230103] [2022-01-18 11:19:16,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:16,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:16,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:16,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:16,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915230103] [2022-01-18 11:19:16,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915230103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:16,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:16,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:16,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462610457] [2022-01-18 11:19:16,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:16,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:16,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:16,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:16,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:16,379 INFO L87 Difference]: Start difference. First operand 23851 states and 68392 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:17,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:17,065 INFO L93 Difference]: Finished difference Result 51707 states and 145390 transitions. [2022-01-18 11:19:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:19:17,066 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:17,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:17,179 INFO L225 Difference]: With dead ends: 51707 [2022-01-18 11:19:17,179 INFO L226 Difference]: Without dead ends: 51707 [2022-01-18 11:19:17,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:19:17,179 INFO L933 BasicCegarLoop]: 856 mSDtfsCounter, 746 mSDsluCounter, 5931 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 6712 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:17,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 6712 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:17,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51707 states. [2022-01-18 11:19:17,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51707 to 23787. [2022-01-18 11:19:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23787 states, 23786 states have (on average 2.866896493735811) internal successors, (68192), 23786 states have internal predecessors, (68192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:17,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23787 states to 23787 states and 68192 transitions. [2022-01-18 11:19:17,842 INFO L78 Accepts]: Start accepts. Automaton has 23787 states and 68192 transitions. Word has length 263 [2022-01-18 11:19:17,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:17,842 INFO L470 AbstractCegarLoop]: Abstraction has 23787 states and 68192 transitions. [2022-01-18 11:19:17,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:17,842 INFO L276 IsEmpty]: Start isEmpty. Operand 23787 states and 68192 transitions. [2022-01-18 11:19:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:17,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:17,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:17,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 11:19:17,874 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:17,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:17,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1720872219, now seen corresponding path program 161 times [2022-01-18 11:19:17,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:17,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156145995] [2022-01-18 11:19:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:17,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:17,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:17,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156145995] [2022-01-18 11:19:17,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156145995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:17,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:17,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:17,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921443657] [2022-01-18 11:19:17,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:17,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:17,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:17,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:17,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:17,958 INFO L87 Difference]: Start difference. First operand 23787 states and 68192 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:18,385 INFO L93 Difference]: Finished difference Result 32013 states and 90491 transitions. [2022-01-18 11:19:18,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:19:18,386 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:18,442 INFO L225 Difference]: With dead ends: 32013 [2022-01-18 11:19:18,442 INFO L226 Difference]: Without dead ends: 32013 [2022-01-18 11:19:18,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:19:18,443 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 518 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 5001 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:18,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [518 Valid, 5001 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:19:18,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32013 states. [2022-01-18 11:19:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32013 to 23739. [2022-01-18 11:19:18,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23739 states, 23738 states have (on average 2.8666273485550593) internal successors, (68048), 23738 states have internal predecessors, (68048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:18,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23739 states to 23739 states and 68048 transitions. [2022-01-18 11:19:18,907 INFO L78 Accepts]: Start accepts. Automaton has 23739 states and 68048 transitions. Word has length 263 [2022-01-18 11:19:18,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:18,907 INFO L470 AbstractCegarLoop]: Abstraction has 23739 states and 68048 transitions. [2022-01-18 11:19:18,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:18,907 INFO L276 IsEmpty]: Start isEmpty. Operand 23739 states and 68048 transitions. [2022-01-18 11:19:18,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:18,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:18,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:18,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 11:19:18,937 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:18,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:18,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1617687953, now seen corresponding path program 162 times [2022-01-18 11:19:18,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:18,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882907592] [2022-01-18 11:19:18,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:18,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:19,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:19,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882907592] [2022-01-18 11:19:19,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882907592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:19,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:19,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:19,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435147092] [2022-01-18 11:19:19,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:19,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:19,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:19,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:19,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:19,020 INFO L87 Difference]: Start difference. First operand 23739 states and 68048 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:19,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:19,870 INFO L93 Difference]: Finished difference Result 62906 states and 177449 transitions. [2022-01-18 11:19:19,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:19:19,870 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:19,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:19,989 INFO L225 Difference]: With dead ends: 62906 [2022-01-18 11:19:19,990 INFO L226 Difference]: Without dead ends: 62906 [2022-01-18 11:19:19,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=715, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:19:19,990 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 1049 mSDsluCounter, 6488 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 7321 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:19,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 7321 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62906 states. [2022-01-18 11:19:20,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62906 to 24135. [2022-01-18 11:19:20,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24135 states, 24134 states have (on average 2.8773100190602467) internal successors, (69441), 24134 states have internal predecessors, (69441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:20,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24135 states to 24135 states and 69441 transitions. [2022-01-18 11:19:20,738 INFO L78 Accepts]: Start accepts. Automaton has 24135 states and 69441 transitions. Word has length 263 [2022-01-18 11:19:20,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:20,739 INFO L470 AbstractCegarLoop]: Abstraction has 24135 states and 69441 transitions. [2022-01-18 11:19:20,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:20,739 INFO L276 IsEmpty]: Start isEmpty. Operand 24135 states and 69441 transitions. [2022-01-18 11:19:20,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:20,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:20,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:20,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 11:19:20,775 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:20,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:20,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1725309511, now seen corresponding path program 163 times [2022-01-18 11:19:20,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:20,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460687535] [2022-01-18 11:19:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:20,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:20,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:20,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:20,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460687535] [2022-01-18 11:19:20,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460687535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:20,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:20,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:20,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326634699] [2022-01-18 11:19:20,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:20,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:20,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:20,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:20,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:20,861 INFO L87 Difference]: Start difference. First operand 24135 states and 69441 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:21,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:21,606 INFO L93 Difference]: Finished difference Result 63524 states and 179504 transitions. [2022-01-18 11:19:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:19:21,607 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:21,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:21,725 INFO L225 Difference]: With dead ends: 63524 [2022-01-18 11:19:21,725 INFO L226 Difference]: Without dead ends: 63524 [2022-01-18 11:19:21,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:19:21,725 INFO L933 BasicCegarLoop]: 955 mSDtfsCounter, 1047 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 7452 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:21,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 7452 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:21,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63524 states. [2022-01-18 11:19:22,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63524 to 23807. [2022-01-18 11:19:22,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23807 states, 23806 states have (on average 2.8667982861463495) internal successors, (68247), 23806 states have internal predecessors, (68247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:22,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23807 states to 23807 states and 68247 transitions. [2022-01-18 11:19:22,430 INFO L78 Accepts]: Start accepts. Automaton has 23807 states and 68247 transitions. Word has length 263 [2022-01-18 11:19:22,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:22,430 INFO L470 AbstractCegarLoop]: Abstraction has 23807 states and 68247 transitions. [2022-01-18 11:19:22,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:22,430 INFO L276 IsEmpty]: Start isEmpty. Operand 23807 states and 68247 transitions. [2022-01-18 11:19:22,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:22,461 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:22,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:22,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 11:19:22,461 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:22,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:22,461 INFO L85 PathProgramCache]: Analyzing trace with hash -480867129, now seen corresponding path program 164 times [2022-01-18 11:19:22,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:22,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213014495] [2022-01-18 11:19:22,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:22,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:22,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:22,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213014495] [2022-01-18 11:19:22,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213014495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:22,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:22,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:22,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798254210] [2022-01-18 11:19:22,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:22,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:22,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:22,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:22,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:22,544 INFO L87 Difference]: Start difference. First operand 23807 states and 68247 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:23,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:23,310 INFO L93 Difference]: Finished difference Result 50512 states and 143307 transitions. [2022-01-18 11:19:23,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:19:23,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:23,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:23,412 INFO L225 Difference]: With dead ends: 50512 [2022-01-18 11:19:23,412 INFO L226 Difference]: Without dead ends: 50512 [2022-01-18 11:19:23,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:19:23,412 INFO L933 BasicCegarLoop]: 863 mSDtfsCounter, 770 mSDsluCounter, 6049 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 6844 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:23,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [770 Valid, 6844 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:23,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50512 states. [2022-01-18 11:19:23,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50512 to 23775. [2022-01-18 11:19:23,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23775 states, 23774 states have (on average 2.8664507445108103) internal successors, (68147), 23774 states have internal predecessors, (68147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23775 states to 23775 states and 68147 transitions. [2022-01-18 11:19:23,982 INFO L78 Accepts]: Start accepts. Automaton has 23775 states and 68147 transitions. Word has length 263 [2022-01-18 11:19:23,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:23,982 INFO L470 AbstractCegarLoop]: Abstraction has 23775 states and 68147 transitions. [2022-01-18 11:19:23,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:23,983 INFO L276 IsEmpty]: Start isEmpty. Operand 23775 states and 68147 transitions. [2022-01-18 11:19:24,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:24,017 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:24,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:24,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 11:19:24,017 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:24,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:24,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1953751791, now seen corresponding path program 165 times [2022-01-18 11:19:24,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:24,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750293498] [2022-01-18 11:19:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:24,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:24,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:24,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750293498] [2022-01-18 11:19:24,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750293498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:24,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:24,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:24,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671769897] [2022-01-18 11:19:24,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:24,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:24,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:24,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:24,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:24,106 INFO L87 Difference]: Start difference. First operand 23775 states and 68147 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:25,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:25,085 INFO L93 Difference]: Finished difference Result 65721 states and 185816 transitions. [2022-01-18 11:19:25,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:19:25,085 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:25,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:25,207 INFO L225 Difference]: With dead ends: 65721 [2022-01-18 11:19:25,207 INFO L226 Difference]: Without dead ends: 65721 [2022-01-18 11:19:25,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:19:25,208 INFO L933 BasicCegarLoop]: 1004 mSDtfsCounter, 1080 mSDsluCounter, 6907 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 7819 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:25,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 7819 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:25,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65721 states. [2022-01-18 11:19:25,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65721 to 24135. [2022-01-18 11:19:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24135 states, 24134 states have (on average 2.8773100190602467) internal successors, (69441), 24134 states have internal predecessors, (69441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:25,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24135 states to 24135 states and 69441 transitions. [2022-01-18 11:19:25,839 INFO L78 Accepts]: Start accepts. Automaton has 24135 states and 69441 transitions. Word has length 263 [2022-01-18 11:19:25,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:25,840 INFO L470 AbstractCegarLoop]: Abstraction has 24135 states and 69441 transitions. [2022-01-18 11:19:25,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:25,840 INFO L276 IsEmpty]: Start isEmpty. Operand 24135 states and 69441 transitions. [2022-01-18 11:19:25,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:25,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:25,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:25,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 11:19:25,874 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:25,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:25,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1001781959, now seen corresponding path program 166 times [2022-01-18 11:19:25,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:25,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221380702] [2022-01-18 11:19:25,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:25,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:25,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:25,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:25,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221380702] [2022-01-18 11:19:25,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221380702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:25,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:25,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:25,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216608822] [2022-01-18 11:19:25,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:25,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:25,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:25,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:25,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:25,960 INFO L87 Difference]: Start difference. First operand 24135 states and 69441 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:26,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:26,851 INFO L93 Difference]: Finished difference Result 66142 states and 187307 transitions. [2022-01-18 11:19:26,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:19:26,852 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:26,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:26,974 INFO L225 Difference]: With dead ends: 66142 [2022-01-18 11:19:26,974 INFO L226 Difference]: Without dead ends: 66142 [2022-01-18 11:19:26,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:19:26,975 INFO L933 BasicCegarLoop]: 995 mSDtfsCounter, 1095 mSDsluCounter, 6829 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 7763 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:26,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 7763 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:27,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66142 states. [2022-01-18 11:19:27,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66142 to 23807. [2022-01-18 11:19:27,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23807 states, 23806 states have (on average 2.8667982861463495) internal successors, (68247), 23806 states have internal predecessors, (68247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:27,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23807 states to 23807 states and 68247 transitions. [2022-01-18 11:19:27,627 INFO L78 Accepts]: Start accepts. Automaton has 23807 states and 68247 transitions. Word has length 263 [2022-01-18 11:19:27,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:27,627 INFO L470 AbstractCegarLoop]: Abstraction has 23807 states and 68247 transitions. [2022-01-18 11:19:27,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:27,627 INFO L276 IsEmpty]: Start isEmpty. Operand 23807 states and 68247 transitions. [2022-01-18 11:19:27,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:27,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:27,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:27,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 11:19:27,659 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:27,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:27,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1696266889, now seen corresponding path program 167 times [2022-01-18 11:19:27,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:27,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96267074] [2022-01-18 11:19:27,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:27,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:27,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:27,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96267074] [2022-01-18 11:19:27,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96267074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:27,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:27,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:27,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460894287] [2022-01-18 11:19:27,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:27,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:27,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:27,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:27,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:27,740 INFO L87 Difference]: Start difference. First operand 23807 states and 68247 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:28,417 INFO L93 Difference]: Finished difference Result 50933 states and 144343 transitions. [2022-01-18 11:19:28,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:19:28,417 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:28,517 INFO L225 Difference]: With dead ends: 50933 [2022-01-18 11:19:28,518 INFO L226 Difference]: Without dead ends: 50933 [2022-01-18 11:19:28,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:28,518 INFO L933 BasicCegarLoop]: 930 mSDtfsCounter, 714 mSDsluCounter, 6466 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 7306 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:28,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 7306 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:28,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50933 states. [2022-01-18 11:19:29,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50933 to 23771. [2022-01-18 11:19:29,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23771 states, 23770 states have (on average 2.866470340765671) internal successors, (68136), 23770 states have internal predecessors, (68136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:29,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23771 states to 23771 states and 68136 transitions. [2022-01-18 11:19:29,216 INFO L78 Accepts]: Start accepts. Automaton has 23771 states and 68136 transitions. Word has length 263 [2022-01-18 11:19:29,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:29,216 INFO L470 AbstractCegarLoop]: Abstraction has 23771 states and 68136 transitions. [2022-01-18 11:19:29,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:29,217 INFO L276 IsEmpty]: Start isEmpty. Operand 23771 states and 68136 transitions. [2022-01-18 11:19:29,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:29,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:29,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:29,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 11:19:29,251 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:29,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:29,251 INFO L85 PathProgramCache]: Analyzing trace with hash 424966323, now seen corresponding path program 168 times [2022-01-18 11:19:29,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:29,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116499315] [2022-01-18 11:19:29,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:29,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:29,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:29,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116499315] [2022-01-18 11:19:29,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116499315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:29,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:29,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:29,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691656842] [2022-01-18 11:19:29,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:29,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:29,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:29,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:29,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:29,340 INFO L87 Difference]: Start difference. First operand 23771 states and 68136 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:30,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:30,311 INFO L93 Difference]: Finished difference Result 80835 states and 228364 transitions. [2022-01-18 11:19:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:19:30,311 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:30,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:30,476 INFO L225 Difference]: With dead ends: 80835 [2022-01-18 11:19:30,477 INFO L226 Difference]: Without dead ends: 80835 [2022-01-18 11:19:30,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=222, Invalid=1038, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:19:30,477 INFO L933 BasicCegarLoop]: 1070 mSDtfsCounter, 1545 mSDsluCounter, 7125 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 8089 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:30,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1545 Valid, 8089 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80835 states. [2022-01-18 11:19:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80835 to 24203. [2022-01-18 11:19:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24203 states, 24202 states have (on average 2.8782745227667137) internal successors, (69660), 24202 states have internal predecessors, (69660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:31,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24203 states to 24203 states and 69660 transitions. [2022-01-18 11:19:31,320 INFO L78 Accepts]: Start accepts. Automaton has 24203 states and 69660 transitions. Word has length 263 [2022-01-18 11:19:31,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:31,320 INFO L470 AbstractCegarLoop]: Abstraction has 24203 states and 69660 transitions. [2022-01-18 11:19:31,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:31,320 INFO L276 IsEmpty]: Start isEmpty. Operand 24203 states and 69660 transitions. [2022-01-18 11:19:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:31,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:31,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:31,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 11:19:31,351 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:31,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:31,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1376936155, now seen corresponding path program 169 times [2022-01-18 11:19:31,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:31,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874243805] [2022-01-18 11:19:31,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:31,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:31,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:31,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874243805] [2022-01-18 11:19:31,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874243805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:31,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:31,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:31,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929125844] [2022-01-18 11:19:31,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:31,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:31,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:31,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:31,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:31,438 INFO L87 Difference]: Start difference. First operand 24203 states and 69660 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:32,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:32,519 INFO L93 Difference]: Finished difference Result 81385 states and 230265 transitions. [2022-01-18 11:19:32,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:19:32,520 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:32,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:32,692 INFO L225 Difference]: With dead ends: 81385 [2022-01-18 11:19:32,693 INFO L226 Difference]: Without dead ends: 81385 [2022-01-18 11:19:32,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=225, Invalid=1035, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:19:32,693 INFO L933 BasicCegarLoop]: 1046 mSDtfsCounter, 1533 mSDsluCounter, 7849 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 8818 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:32,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1533 Valid, 8818 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:19:32,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81385 states. [2022-01-18 11:19:33,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81385 to 23867. [2022-01-18 11:19:33,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23867 states, 23866 states have (on average 2.8675102656498783) internal successors, (68436), 23866 states have internal predecessors, (68436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23867 states to 23867 states and 68436 transitions. [2022-01-18 11:19:33,588 INFO L78 Accepts]: Start accepts. Automaton has 23867 states and 68436 transitions. Word has length 263 [2022-01-18 11:19:33,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:33,588 INFO L470 AbstractCegarLoop]: Abstraction has 23867 states and 68436 transitions. [2022-01-18 11:19:33,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:33,588 INFO L276 IsEmpty]: Start isEmpty. Operand 23867 states and 68436 transitions. [2022-01-18 11:19:33,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:33,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:33,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:33,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 11:19:33,621 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:33,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:33,621 INFO L85 PathProgramCache]: Analyzing trace with hash 682451225, now seen corresponding path program 170 times [2022-01-18 11:19:33,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:33,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823233361] [2022-01-18 11:19:33,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:33,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:33,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:33,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823233361] [2022-01-18 11:19:33,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823233361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:33,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:33,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:33,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794900362] [2022-01-18 11:19:33,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:33,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:33,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:33,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:33,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:33,707 INFO L87 Difference]: Start difference. First operand 23867 states and 68436 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:34,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:34,554 INFO L93 Difference]: Finished difference Result 66503 states and 188141 transitions. [2022-01-18 11:19:34,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:19:34,555 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:34,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:34,689 INFO L225 Difference]: With dead ends: 66503 [2022-01-18 11:19:34,689 INFO L226 Difference]: Without dead ends: 66503 [2022-01-18 11:19:34,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:19:34,690 INFO L933 BasicCegarLoop]: 997 mSDtfsCounter, 1122 mSDsluCounter, 6763 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 7656 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:34,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1122 Valid, 7656 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:34,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66503 states. [2022-01-18 11:19:35,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66503 to 23835. [2022-01-18 11:19:35,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23835 states, 23834 states have (on average 2.8671645548376268) internal successors, (68336), 23834 states have internal predecessors, (68336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:35,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23835 states to 23835 states and 68336 transitions. [2022-01-18 11:19:35,626 INFO L78 Accepts]: Start accepts. Automaton has 23835 states and 68336 transitions. Word has length 263 [2022-01-18 11:19:35,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:35,626 INFO L470 AbstractCegarLoop]: Abstraction has 23835 states and 68336 transitions. [2022-01-18 11:19:35,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:35,626 INFO L276 IsEmpty]: Start isEmpty. Operand 23835 states and 68336 transitions. [2022-01-18 11:19:35,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:35,662 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:35,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:35,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 11:19:35,663 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:35,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:35,663 INFO L85 PathProgramCache]: Analyzing trace with hash 77057589, now seen corresponding path program 171 times [2022-01-18 11:19:35,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:35,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560206343] [2022-01-18 11:19:35,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:35,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:35,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:35,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:35,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560206343] [2022-01-18 11:19:35,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560206343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:35,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:35,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:35,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696714851] [2022-01-18 11:19:35,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:35,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:35,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:35,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:35,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:35,744 INFO L87 Difference]: Start difference. First operand 23835 states and 68336 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:36,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:36,796 INFO L93 Difference]: Finished difference Result 70009 states and 197450 transitions. [2022-01-18 11:19:36,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:19:36,797 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:36,926 INFO L225 Difference]: With dead ends: 70009 [2022-01-18 11:19:36,926 INFO L226 Difference]: Without dead ends: 70009 [2022-01-18 11:19:36,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2022-01-18 11:19:36,927 INFO L933 BasicCegarLoop]: 1026 mSDtfsCounter, 1213 mSDsluCounter, 6945 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:36,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1213 Valid, 7855 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70009 states. [2022-01-18 11:19:37,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70009 to 23763. [2022-01-18 11:19:37,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23763 states, 23762 states have (on average 2.8665095530679237) internal successors, (68114), 23762 states have internal predecessors, (68114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23763 states to 23763 states and 68114 transitions. [2022-01-18 11:19:37,526 INFO L78 Accepts]: Start accepts. Automaton has 23763 states and 68114 transitions. Word has length 263 [2022-01-18 11:19:37,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:37,526 INFO L470 AbstractCegarLoop]: Abstraction has 23763 states and 68114 transitions. [2022-01-18 11:19:37,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:37,526 INFO L276 IsEmpty]: Start isEmpty. Operand 23763 states and 68114 transitions. [2022-01-18 11:19:37,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:37,558 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:37,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:37,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 11:19:37,559 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:37,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2092412433, now seen corresponding path program 172 times [2022-01-18 11:19:37,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:37,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284350611] [2022-01-18 11:19:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:37,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:37,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:37,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284350611] [2022-01-18 11:19:37,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284350611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:37,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:37,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:37,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137227587] [2022-01-18 11:19:37,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:37,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:37,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:37,651 INFO L87 Difference]: Start difference. First operand 23763 states and 68114 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:38,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:38,710 INFO L93 Difference]: Finished difference Result 65602 states and 185495 transitions. [2022-01-18 11:19:38,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:19:38,710 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:38,839 INFO L225 Difference]: With dead ends: 65602 [2022-01-18 11:19:38,839 INFO L226 Difference]: Without dead ends: 65602 [2022-01-18 11:19:38,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:19:38,840 INFO L933 BasicCegarLoop]: 1006 mSDtfsCounter, 1043 mSDsluCounter, 7759 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 8665 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:38,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1043 Valid, 8665 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:19:38,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65602 states. [2022-01-18 11:19:39,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65602 to 24135. [2022-01-18 11:19:39,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24135 states, 24134 states have (on average 2.8773100190602467) internal successors, (69441), 24134 states have internal predecessors, (69441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:39,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24135 states to 24135 states and 69441 transitions. [2022-01-18 11:19:39,734 INFO L78 Accepts]: Start accepts. Automaton has 24135 states and 69441 transitions. Word has length 263 [2022-01-18 11:19:39,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:39,734 INFO L470 AbstractCegarLoop]: Abstraction has 24135 states and 69441 transitions. [2022-01-18 11:19:39,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:39,734 INFO L276 IsEmpty]: Start isEmpty. Operand 24135 states and 69441 transitions. [2022-01-18 11:19:39,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:39,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:39,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:39,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 11:19:39,769 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:39,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:39,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1250585031, now seen corresponding path program 173 times [2022-01-18 11:19:39,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:39,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18333861] [2022-01-18 11:19:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:39,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:39,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:39,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:39,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18333861] [2022-01-18 11:19:39,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18333861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:39,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:39,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:39,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095356218] [2022-01-18 11:19:39,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:39,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:39,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:39,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:39,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:39,854 INFO L87 Difference]: Start difference. First operand 24135 states and 69441 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:40,717 INFO L93 Difference]: Finished difference Result 66346 states and 187884 transitions. [2022-01-18 11:19:40,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:19:40,717 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:40,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:40,840 INFO L225 Difference]: With dead ends: 66346 [2022-01-18 11:19:40,840 INFO L226 Difference]: Without dead ends: 66346 [2022-01-18 11:19:40,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:19:40,841 INFO L933 BasicCegarLoop]: 1079 mSDtfsCounter, 1032 mSDsluCounter, 7233 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 8237 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:40,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 8237 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:40,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66346 states. [2022-01-18 11:19:41,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66346 to 23807. [2022-01-18 11:19:41,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23807 states, 23806 states have (on average 2.8667982861463495) internal successors, (68247), 23806 states have internal predecessors, (68247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23807 states to 23807 states and 68247 transitions. [2022-01-18 11:19:41,649 INFO L78 Accepts]: Start accepts. Automaton has 23807 states and 68247 transitions. Word has length 263 [2022-01-18 11:19:41,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:41,650 INFO L470 AbstractCegarLoop]: Abstraction has 23807 states and 68247 transitions. [2022-01-18 11:19:41,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:41,650 INFO L276 IsEmpty]: Start isEmpty. Operand 23807 states and 68247 transitions. [2022-01-18 11:19:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:41,680 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:41,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:41,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 11:19:41,680 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:41,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:41,681 INFO L85 PathProgramCache]: Analyzing trace with hash -6142649, now seen corresponding path program 174 times [2022-01-18 11:19:41,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:41,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27019507] [2022-01-18 11:19:41,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:41,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:41,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:41,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:41,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27019507] [2022-01-18 11:19:41,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27019507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:41,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:41,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:41,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362566214] [2022-01-18 11:19:41,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:41,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:41,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:41,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:41,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:41,764 INFO L87 Difference]: Start difference. First operand 23807 states and 68247 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:42,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:42,466 INFO L93 Difference]: Finished difference Result 50890 states and 144358 transitions. [2022-01-18 11:19:42,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:19:42,466 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:42,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:42,572 INFO L225 Difference]: With dead ends: 50890 [2022-01-18 11:19:42,573 INFO L226 Difference]: Without dead ends: 50890 [2022-01-18 11:19:42,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:42,573 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 705 mSDsluCounter, 6389 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 7247 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:42,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 7247 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:42,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50890 states. [2022-01-18 11:19:43,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50890 to 23775. [2022-01-18 11:19:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23775 states, 23774 states have (on average 2.8664507445108103) internal successors, (68147), 23774 states have internal predecessors, (68147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23775 states to 23775 states and 68147 transitions. [2022-01-18 11:19:43,274 INFO L78 Accepts]: Start accepts. Automaton has 23775 states and 68147 transitions. Word has length 263 [2022-01-18 11:19:43,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:43,274 INFO L470 AbstractCegarLoop]: Abstraction has 23775 states and 68147 transitions. [2022-01-18 11:19:43,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:43,274 INFO L276 IsEmpty]: Start isEmpty. Operand 23775 states and 68147 transitions. [2022-01-18 11:19:43,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:43,309 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:43,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:43,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 11:19:43,310 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:43,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1479027311, now seen corresponding path program 175 times [2022-01-18 11:19:43,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:43,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125831406] [2022-01-18 11:19:43,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:43,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:43,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:43,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:43,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125831406] [2022-01-18 11:19:43,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125831406] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:43,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:43,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:43,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485091346] [2022-01-18 11:19:43,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:43,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:43,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:43,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:43,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:43,403 INFO L87 Difference]: Start difference. First operand 23775 states and 68147 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:44,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:44,322 INFO L93 Difference]: Finished difference Result 65837 states and 186176 transitions. [2022-01-18 11:19:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:19:44,323 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:44,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:44,458 INFO L225 Difference]: With dead ends: 65837 [2022-01-18 11:19:44,458 INFO L226 Difference]: Without dead ends: 65837 [2022-01-18 11:19:44,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:19:44,458 INFO L933 BasicCegarLoop]: 988 mSDtfsCounter, 1015 mSDsluCounter, 7565 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 8466 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:44,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 8466 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:44,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65837 states. [2022-01-18 11:19:45,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65837 to 24135. [2022-01-18 11:19:45,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24135 states, 24134 states have (on average 2.8773100190602467) internal successors, (69441), 24134 states have internal predecessors, (69441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:45,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24135 states to 24135 states and 69441 transitions. [2022-01-18 11:19:45,252 INFO L78 Accepts]: Start accepts. Automaton has 24135 states and 69441 transitions. Word has length 263 [2022-01-18 11:19:45,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:45,253 INFO L470 AbstractCegarLoop]: Abstraction has 24135 states and 69441 transitions. [2022-01-18 11:19:45,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 24135 states and 69441 transitions. [2022-01-18 11:19:45,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:45,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:45,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:45,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 11:19:45,288 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:45,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:45,288 INFO L85 PathProgramCache]: Analyzing trace with hash -527057479, now seen corresponding path program 176 times [2022-01-18 11:19:45,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:45,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989225003] [2022-01-18 11:19:45,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:45,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:45,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:45,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989225003] [2022-01-18 11:19:45,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989225003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:45,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:45,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:45,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676436661] [2022-01-18 11:19:45,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:45,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:45,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:45,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:45,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:45,374 INFO L87 Difference]: Start difference. First operand 24135 states and 69441 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:46,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:46,354 INFO L93 Difference]: Finished difference Result 66444 states and 188162 transitions. [2022-01-18 11:19:46,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:19:46,354 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:46,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:46,475 INFO L225 Difference]: With dead ends: 66444 [2022-01-18 11:19:46,475 INFO L226 Difference]: Without dead ends: 66444 [2022-01-18 11:19:46,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=715, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:19:46,475 INFO L933 BasicCegarLoop]: 1012 mSDtfsCounter, 1001 mSDsluCounter, 6831 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 7788 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:46,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1001 Valid, 7788 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:46,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66444 states. [2022-01-18 11:19:47,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66444 to 23807. [2022-01-18 11:19:47,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23807 states, 23806 states have (on average 2.8667982861463495) internal successors, (68247), 23806 states have internal predecessors, (68247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:47,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23807 states to 23807 states and 68247 transitions. [2022-01-18 11:19:47,099 INFO L78 Accepts]: Start accepts. Automaton has 23807 states and 68247 transitions. Word has length 263 [2022-01-18 11:19:47,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:47,099 INFO L470 AbstractCegarLoop]: Abstraction has 23807 states and 68247 transitions. [2022-01-18 11:19:47,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:47,100 INFO L276 IsEmpty]: Start isEmpty. Operand 23807 states and 68247 transitions. [2022-01-18 11:19:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:47,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:47,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:47,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 11:19:47,133 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:47,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:47,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1221542409, now seen corresponding path program 177 times [2022-01-18 11:19:47,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:47,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334778398] [2022-01-18 11:19:47,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:47,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:47,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:47,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334778398] [2022-01-18 11:19:47,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334778398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:47,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:47,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:47,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061226635] [2022-01-18 11:19:47,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:47,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:47,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:47,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:47,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:47,217 INFO L87 Difference]: Start difference. First operand 23807 states and 68247 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:47,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:47,994 INFO L93 Difference]: Finished difference Result 51105 states and 144853 transitions. [2022-01-18 11:19:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:19:47,994 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:47,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:48,093 INFO L225 Difference]: With dead ends: 51105 [2022-01-18 11:19:48,093 INFO L226 Difference]: Without dead ends: 51105 [2022-01-18 11:19:48,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:19:48,093 INFO L933 BasicCegarLoop]: 916 mSDtfsCounter, 704 mSDsluCounter, 6334 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 7170 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:48,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 7170 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:48,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51105 states. [2022-01-18 11:19:48,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51105 to 23771. [2022-01-18 11:19:48,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23771 states, 23770 states have (on average 2.866470340765671) internal successors, (68136), 23770 states have internal predecessors, (68136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23771 states to 23771 states and 68136 transitions. [2022-01-18 11:19:48,657 INFO L78 Accepts]: Start accepts. Automaton has 23771 states and 68136 transitions. Word has length 263 [2022-01-18 11:19:48,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:48,657 INFO L470 AbstractCegarLoop]: Abstraction has 23771 states and 68136 transitions. [2022-01-18 11:19:48,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:48,657 INFO L276 IsEmpty]: Start isEmpty. Operand 23771 states and 68136 transitions. [2022-01-18 11:19:48,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:48,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:48,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:48,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 11:19:48,690 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:48,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:48,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1732872013, now seen corresponding path program 178 times [2022-01-18 11:19:48,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:48,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952582787] [2022-01-18 11:19:48,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:48,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:48,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:48,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:48,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952582787] [2022-01-18 11:19:48,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952582787] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:48,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:48,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:48,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455192596] [2022-01-18 11:19:48,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:48,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:48,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:48,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:48,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:48,780 INFO L87 Difference]: Start difference. First operand 23771 states and 68136 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:49,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:49,846 INFO L93 Difference]: Finished difference Result 65308 states and 184683 transitions. [2022-01-18 11:19:49,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:19:49,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:49,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:49,962 INFO L225 Difference]: With dead ends: 65308 [2022-01-18 11:19:49,962 INFO L226 Difference]: Without dead ends: 65308 [2022-01-18 11:19:49,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=916, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:19:49,962 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 1342 mSDsluCounter, 7768 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 8724 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:49,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1342 Valid, 8724 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:19:50,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65308 states. [2022-01-18 11:19:50,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65308 to 24203. [2022-01-18 11:19:50,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24203 states, 24202 states have (on average 2.8782745227667137) internal successors, (69660), 24202 states have internal predecessors, (69660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:50,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24203 states to 24203 states and 69660 transitions. [2022-01-18 11:19:50,577 INFO L78 Accepts]: Start accepts. Automaton has 24203 states and 69660 transitions. Word has length 263 [2022-01-18 11:19:50,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:50,578 INFO L470 AbstractCegarLoop]: Abstraction has 24203 states and 69660 transitions. [2022-01-18 11:19:50,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:50,578 INFO L276 IsEmpty]: Start isEmpty. Operand 24203 states and 69660 transitions. [2022-01-18 11:19:50,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:50,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:50,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:50,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 11:19:50,611 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:50,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash -780902181, now seen corresponding path program 179 times [2022-01-18 11:19:50,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:50,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801972320] [2022-01-18 11:19:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:50,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:50,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:50,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801972320] [2022-01-18 11:19:50,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801972320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:50,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:50,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:50,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461978121] [2022-01-18 11:19:50,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:50,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:50,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:50,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:50,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:50,714 INFO L87 Difference]: Start difference. First operand 24203 states and 69660 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:51,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:51,711 INFO L93 Difference]: Finished difference Result 66241 states and 187573 transitions. [2022-01-18 11:19:51,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:19:51,711 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:51,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:51,845 INFO L225 Difference]: With dead ends: 66241 [2022-01-18 11:19:51,846 INFO L226 Difference]: Without dead ends: 66241 [2022-01-18 11:19:51,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=1038, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:19:51,846 INFO L933 BasicCegarLoop]: 1142 mSDtfsCounter, 1331 mSDsluCounter, 7222 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 8291 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:51,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1331 Valid, 8291 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66241 states. [2022-01-18 11:19:52,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66241 to 23867. [2022-01-18 11:19:52,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23867 states, 23866 states have (on average 2.8675102656498783) internal successors, (68436), 23866 states have internal predecessors, (68436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:52,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23867 states to 23867 states and 68436 transitions. [2022-01-18 11:19:52,515 INFO L78 Accepts]: Start accepts. Automaton has 23867 states and 68436 transitions. Word has length 263 [2022-01-18 11:19:52,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:52,515 INFO L470 AbstractCegarLoop]: Abstraction has 23867 states and 68436 transitions. [2022-01-18 11:19:52,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:52,516 INFO L276 IsEmpty]: Start isEmpty. Operand 23867 states and 68436 transitions. [2022-01-18 11:19:52,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:52,548 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:52,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:52,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 11:19:52,548 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:52,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:52,548 INFO L85 PathProgramCache]: Analyzing trace with hash 463540201, now seen corresponding path program 180 times [2022-01-18 11:19:52,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:52,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741726780] [2022-01-18 11:19:52,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:52,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:52,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:52,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:52,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741726780] [2022-01-18 11:19:52,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741726780] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:52,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:52,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:52,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896034728] [2022-01-18 11:19:52,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:52,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:52,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:52,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:52,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:52,638 INFO L87 Difference]: Start difference. First operand 23867 states and 68436 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:53,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:53,369 INFO L93 Difference]: Finished difference Result 50905 states and 144377 transitions. [2022-01-18 11:19:53,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:19:53,370 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:53,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:53,463 INFO L225 Difference]: With dead ends: 50905 [2022-01-18 11:19:53,463 INFO L226 Difference]: Without dead ends: 50905 [2022-01-18 11:19:53,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:19:53,463 INFO L933 BasicCegarLoop]: 988 mSDtfsCounter, 976 mSDsluCounter, 6536 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 7458 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:53,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 7458 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:53,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50905 states. [2022-01-18 11:19:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50905 to 23835. [2022-01-18 11:19:53,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23835 states, 23834 states have (on average 2.8671645548376268) internal successors, (68336), 23834 states have internal predecessors, (68336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:54,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23835 states to 23835 states and 68336 transitions. [2022-01-18 11:19:54,035 INFO L78 Accepts]: Start accepts. Automaton has 23835 states and 68336 transitions. Word has length 263 [2022-01-18 11:19:54,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:54,035 INFO L470 AbstractCegarLoop]: Abstraction has 23835 states and 68336 transitions. [2022-01-18 11:19:54,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:54,036 INFO L276 IsEmpty]: Start isEmpty. Operand 23835 states and 68336 transitions. [2022-01-18 11:19:54,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:54,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:54,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:54,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 11:19:54,067 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:54,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:54,067 INFO L85 PathProgramCache]: Analyzing trace with hash 423288325, now seen corresponding path program 181 times [2022-01-18 11:19:54,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:54,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430678270] [2022-01-18 11:19:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:54,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:54,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:54,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:54,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430678270] [2022-01-18 11:19:54,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430678270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:54,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:54,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:54,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137299501] [2022-01-18 11:19:54,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:54,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:54,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:54,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:54,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:54,149 INFO L87 Difference]: Start difference. First operand 23835 states and 68336 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:54,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:54,991 INFO L93 Difference]: Finished difference Result 54525 states and 153926 transitions. [2022-01-18 11:19:54,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:19:54,992 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:54,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:55,097 INFO L225 Difference]: With dead ends: 54525 [2022-01-18 11:19:55,097 INFO L226 Difference]: Without dead ends: 54525 [2022-01-18 11:19:55,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2022-01-18 11:19:55,098 INFO L933 BasicCegarLoop]: 1015 mSDtfsCounter, 1131 mSDsluCounter, 7503 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 8444 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:55,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 8444 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:55,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54525 states. [2022-01-18 11:19:55,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54525 to 23747. [2022-01-18 11:19:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23747 states, 23746 states have (on average 2.866588056935905) internal successors, (68070), 23746 states have internal predecessors, (68070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:55,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23747 states to 23747 states and 68070 transitions. [2022-01-18 11:19:55,759 INFO L78 Accepts]: Start accepts. Automaton has 23747 states and 68070 transitions. Word has length 263 [2022-01-18 11:19:55,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:55,759 INFO L470 AbstractCegarLoop]: Abstraction has 23747 states and 68070 transitions. [2022-01-18 11:19:55,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:55,759 INFO L276 IsEmpty]: Start isEmpty. Operand 23747 states and 68070 transitions. [2022-01-18 11:19:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:55,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:55,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:55,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 11:19:55,790 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:55,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:55,790 INFO L85 PathProgramCache]: Analyzing trace with hash 412620305, now seen corresponding path program 182 times [2022-01-18 11:19:55,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:55,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282318393] [2022-01-18 11:19:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:55,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:55,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:55,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282318393] [2022-01-18 11:19:55,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282318393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:55,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:55,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:55,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455200940] [2022-01-18 11:19:55,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:55,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:55,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:55,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:55,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:55,873 INFO L87 Difference]: Start difference. First operand 23747 states and 68070 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:56,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:56,455 INFO L93 Difference]: Finished difference Result 46092 states and 130233 transitions. [2022-01-18 11:19:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:19:56,455 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:56,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:56,541 INFO L225 Difference]: With dead ends: 46092 [2022-01-18 11:19:56,542 INFO L226 Difference]: Without dead ends: 46092 [2022-01-18 11:19:56,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:19:56,542 INFO L933 BasicCegarLoop]: 825 mSDtfsCounter, 680 mSDsluCounter, 5746 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:56,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 6497 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:19:56,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46092 states. [2022-01-18 11:19:56,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46092 to 24123. [2022-01-18 11:19:57,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24123 states, 24122 states have (on average 2.8773733521266895) internal successors, (69408), 24122 states have internal predecessors, (69408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:57,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24123 states to 24123 states and 69408 transitions. [2022-01-18 11:19:57,066 INFO L78 Accepts]: Start accepts. Automaton has 24123 states and 69408 transitions. Word has length 263 [2022-01-18 11:19:57,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:57,067 INFO L470 AbstractCegarLoop]: Abstraction has 24123 states and 69408 transitions. [2022-01-18 11:19:57,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:57,067 INFO L276 IsEmpty]: Start isEmpty. Operand 24123 states and 69408 transitions. [2022-01-18 11:19:57,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:57,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:57,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:57,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 11:19:57,099 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:57,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:57,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1364590137, now seen corresponding path program 183 times [2022-01-18 11:19:57,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:57,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227515353] [2022-01-18 11:19:57,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:57,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:57,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:57,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227515353] [2022-01-18 11:19:57,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227515353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:57,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:57,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:57,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709757707] [2022-01-18 11:19:57,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:57,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:57,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:57,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:57,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:57,187 INFO L87 Difference]: Start difference. First operand 24123 states and 69408 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:57,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:57,832 INFO L93 Difference]: Finished difference Result 47019 states and 133041 transitions. [2022-01-18 11:19:57,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:19:57,832 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:57,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:57,913 INFO L225 Difference]: With dead ends: 47019 [2022-01-18 11:19:57,914 INFO L226 Difference]: Without dead ends: 47019 [2022-01-18 11:19:57,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:19:57,914 INFO L933 BasicCegarLoop]: 854 mSDtfsCounter, 679 mSDsluCounter, 5903 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 6698 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:57,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [679 Valid, 6698 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:19:57,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47019 states. [2022-01-18 11:19:58,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47019 to 23795. [2022-01-18 11:19:58,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23795 states, 23794 states have (on average 2.8668571908884593) internal successors, (68214), 23794 states have internal predecessors, (68214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23795 states to 23795 states and 68214 transitions. [2022-01-18 11:19:58,388 INFO L78 Accepts]: Start accepts. Automaton has 23795 states and 68214 transitions. Word has length 263 [2022-01-18 11:19:58,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:58,388 INFO L470 AbstractCegarLoop]: Abstraction has 23795 states and 68214 transitions. [2022-01-18 11:19:58,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 23795 states and 68214 transitions. [2022-01-18 11:19:58,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:58,419 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:58,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:58,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 11:19:58,419 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:58,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:58,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1685934777, now seen corresponding path program 184 times [2022-01-18 11:19:58,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:58,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215400627] [2022-01-18 11:19:58,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:58,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:58,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:58,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215400627] [2022-01-18 11:19:58,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215400627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:58,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:58,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:58,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201957595] [2022-01-18 11:19:58,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:58,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:58,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:58,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:58,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:58,510 INFO L87 Difference]: Start difference. First operand 23795 states and 68214 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:58,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:58,982 INFO L93 Difference]: Finished difference Result 31563 states and 89515 transitions. [2022-01-18 11:19:58,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:19:58,982 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:19:58,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:59,037 INFO L225 Difference]: With dead ends: 31563 [2022-01-18 11:19:59,037 INFO L226 Difference]: Without dead ends: 31563 [2022-01-18 11:19:59,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:19:59,038 INFO L933 BasicCegarLoop]: 694 mSDtfsCounter, 446 mSDsluCounter, 5486 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 6124 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:59,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 6124 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:19:59,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31563 states. [2022-01-18 11:19:59,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31563 to 23763. [2022-01-18 11:19:59,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23763 states, 23762 states have (on average 2.8665095530679237) internal successors, (68114), 23762 states have internal predecessors, (68114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:59,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23763 states to 23763 states and 68114 transitions. [2022-01-18 11:19:59,437 INFO L78 Accepts]: Start accepts. Automaton has 23763 states and 68114 transitions. Word has length 263 [2022-01-18 11:19:59,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:59,437 INFO L470 AbstractCegarLoop]: Abstraction has 23763 states and 68114 transitions. [2022-01-18 11:19:59,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:59,437 INFO L276 IsEmpty]: Start isEmpty. Operand 23763 states and 68114 transitions. [2022-01-18 11:19:59,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:19:59,467 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:59,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:59,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 11:19:59,468 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:59,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:59,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1136147857, now seen corresponding path program 185 times [2022-01-18 11:19:59,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:59,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751448022] [2022-01-18 11:19:59,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:59,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:59,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:59,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751448022] [2022-01-18 11:19:59,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751448022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:59,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:59,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:19:59,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852167937] [2022-01-18 11:19:59,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:59,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:19:59,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:59,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:19:59,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:19:59,552 INFO L87 Difference]: Start difference. First operand 23763 states and 68114 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:00,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:00,325 INFO L93 Difference]: Finished difference Result 47064 states and 132929 transitions. [2022-01-18 11:20:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:20:00,326 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:00,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:00,403 INFO L225 Difference]: With dead ends: 47064 [2022-01-18 11:20:00,403 INFO L226 Difference]: Without dead ends: 47064 [2022-01-18 11:20:00,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:20:00,403 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 740 mSDsluCounter, 6868 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 7662 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:00,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 7662 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:00,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47064 states. [2022-01-18 11:20:00,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47064 to 24123. [2022-01-18 11:20:00,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24123 states, 24122 states have (on average 2.8773733521266895) internal successors, (69408), 24122 states have internal predecessors, (69408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:00,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24123 states to 24123 states and 69408 transitions. [2022-01-18 11:20:00,891 INFO L78 Accepts]: Start accepts. Automaton has 24123 states and 69408 transitions. Word has length 263 [2022-01-18 11:20:00,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:00,891 INFO L470 AbstractCegarLoop]: Abstraction has 24123 states and 69408 transitions. [2022-01-18 11:20:00,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:00,892 INFO L276 IsEmpty]: Start isEmpty. Operand 24123 states and 69408 transitions. [2022-01-18 11:20:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:00,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:00,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:00,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 11:20:00,923 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:00,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:00,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2088117689, now seen corresponding path program 186 times [2022-01-18 11:20:00,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:00,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736161954] [2022-01-18 11:20:00,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:00,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:01,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:01,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:01,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736161954] [2022-01-18 11:20:01,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736161954] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:01,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:01,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:01,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235169681] [2022-01-18 11:20:01,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:01,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:01,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:01,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:01,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:01,010 INFO L87 Difference]: Start difference. First operand 24123 states and 69408 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:01,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:01,638 INFO L93 Difference]: Finished difference Result 47731 states and 135006 transitions. [2022-01-18 11:20:01,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:20:01,638 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:01,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:01,731 INFO L225 Difference]: With dead ends: 47731 [2022-01-18 11:20:01,731 INFO L226 Difference]: Without dead ends: 47731 [2022-01-18 11:20:01,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:20:01,732 INFO L933 BasicCegarLoop]: 870 mSDtfsCounter, 784 mSDsluCounter, 6082 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 6903 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:01,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [784 Valid, 6903 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:01,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47731 states. [2022-01-18 11:20:02,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47731 to 23795. [2022-01-18 11:20:02,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23795 states, 23794 states have (on average 2.8668571908884593) internal successors, (68214), 23794 states have internal predecessors, (68214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:02,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23795 states to 23795 states and 68214 transitions. [2022-01-18 11:20:02,307 INFO L78 Accepts]: Start accepts. Automaton has 23795 states and 68214 transitions. Word has length 263 [2022-01-18 11:20:02,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:02,307 INFO L470 AbstractCegarLoop]: Abstraction has 23795 states and 68214 transitions. [2022-01-18 11:20:02,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:02,307 INFO L276 IsEmpty]: Start isEmpty. Operand 23795 states and 68214 transitions. [2022-01-18 11:20:02,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:02,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:02,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:02,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 11:20:02,340 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:02,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:02,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1393632759, now seen corresponding path program 187 times [2022-01-18 11:20:02,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:02,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289361602] [2022-01-18 11:20:02,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:02,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:02,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:02,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:02,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289361602] [2022-01-18 11:20:02,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289361602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:02,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:02,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:02,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765593657] [2022-01-18 11:20:02,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:02,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:02,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:02,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:02,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:02,431 INFO L87 Difference]: Start difference. First operand 23795 states and 68214 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:02,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:02,999 INFO L93 Difference]: Finished difference Result 32276 states and 91456 transitions. [2022-01-18 11:20:02,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:20:02,999 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:02,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:03,061 INFO L225 Difference]: With dead ends: 32276 [2022-01-18 11:20:03,061 INFO L226 Difference]: Without dead ends: 32276 [2022-01-18 11:20:03,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:20:03,061 INFO L933 BasicCegarLoop]: 768 mSDtfsCounter, 431 mSDsluCounter, 6077 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 6771 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:03,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 6771 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:03,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32276 states. [2022-01-18 11:20:03,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32276 to 23759. [2022-01-18 11:20:03,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23759 states, 23758 states have (on average 2.86652916912198) internal successors, (68103), 23758 states have internal predecessors, (68103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:03,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23759 states to 23759 states and 68103 transitions. [2022-01-18 11:20:03,576 INFO L78 Accepts]: Start accepts. Automaton has 23759 states and 68103 transitions. Word has length 263 [2022-01-18 11:20:03,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:03,576 INFO L470 AbstractCegarLoop]: Abstraction has 23759 states and 68103 transitions. [2022-01-18 11:20:03,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:03,576 INFO L276 IsEmpty]: Start isEmpty. Operand 23759 states and 68103 transitions. [2022-01-18 11:20:03,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:03,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:03,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:03,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 11:20:03,608 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:03,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:03,608 INFO L85 PathProgramCache]: Analyzing trace with hash -780101325, now seen corresponding path program 188 times [2022-01-18 11:20:03,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:03,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838298734] [2022-01-18 11:20:03,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:03,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:03,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:03,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838298734] [2022-01-18 11:20:03,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838298734] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:03,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:03,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:03,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228609404] [2022-01-18 11:20:03,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:03,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:03,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:03,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:03,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:03,694 INFO L87 Difference]: Start difference. First operand 23759 states and 68103 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:04,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:04,542 INFO L93 Difference]: Finished difference Result 63614 states and 179472 transitions. [2022-01-18 11:20:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:20:04,543 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:04,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:04,671 INFO L225 Difference]: With dead ends: 63614 [2022-01-18 11:20:04,671 INFO L226 Difference]: Without dead ends: 63614 [2022-01-18 11:20:04,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:20:04,672 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 1097 mSDsluCounter, 7761 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 8663 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:04,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1097 Valid, 8663 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:04,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63614 states. [2022-01-18 11:20:05,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63614 to 24191. [2022-01-18 11:20:05,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24191 states, 24190 states have (on average 2.8783381562629184) internal successors, (69627), 24190 states have internal predecessors, (69627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:05,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24191 states to 24191 states and 69627 transitions. [2022-01-18 11:20:05,364 INFO L78 Accepts]: Start accepts. Automaton has 24191 states and 69627 transitions. Word has length 263 [2022-01-18 11:20:05,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:05,364 INFO L470 AbstractCegarLoop]: Abstraction has 24191 states and 69627 transitions. [2022-01-18 11:20:05,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 24191 states and 69627 transitions. [2022-01-18 11:20:05,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:05,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:05,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:05,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 11:20:05,397 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:05,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:05,397 INFO L85 PathProgramCache]: Analyzing trace with hash 171868507, now seen corresponding path program 189 times [2022-01-18 11:20:05,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:05,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847995121] [2022-01-18 11:20:05,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:05,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:05,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:05,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:05,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847995121] [2022-01-18 11:20:05,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847995121] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:05,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:05,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:05,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500178225] [2022-01-18 11:20:05,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:05,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:05,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:05,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:05,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:05,486 INFO L87 Difference]: Start difference. First operand 24191 states and 69627 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:06,333 INFO L93 Difference]: Finished difference Result 64317 states and 181703 transitions. [2022-01-18 11:20:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:20:06,333 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:06,476 INFO L225 Difference]: With dead ends: 64317 [2022-01-18 11:20:06,476 INFO L226 Difference]: Without dead ends: 64317 [2022-01-18 11:20:06,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=723, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:20:06,476 INFO L933 BasicCegarLoop]: 996 mSDtfsCounter, 1083 mSDsluCounter, 7765 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 8693 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:06,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1083 Valid, 8693 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:06,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64317 states. [2022-01-18 11:20:07,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64317 to 23855. [2022-01-18 11:20:07,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23855 states, 23854 states have (on average 2.8675693803974176) internal successors, (68403), 23854 states have internal predecessors, (68403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:07,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23855 states to 23855 states and 68403 transitions. [2022-01-18 11:20:07,235 INFO L78 Accepts]: Start accepts. Automaton has 23855 states and 68403 transitions. Word has length 263 [2022-01-18 11:20:07,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:07,235 INFO L470 AbstractCegarLoop]: Abstraction has 23855 states and 68403 transitions. [2022-01-18 11:20:07,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:07,235 INFO L276 IsEmpty]: Start isEmpty. Operand 23855 states and 68403 transitions. [2022-01-18 11:20:07,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:07,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:07,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:07,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 11:20:07,267 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:07,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:07,268 INFO L85 PathProgramCache]: Analyzing trace with hash -522616423, now seen corresponding path program 190 times [2022-01-18 11:20:07,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:07,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229624833] [2022-01-18 11:20:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:07,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:07,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:07,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:07,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229624833] [2022-01-18 11:20:07,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229624833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:07,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:07,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:07,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756814168] [2022-01-18 11:20:07,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:07,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:07,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:07,350 INFO L87 Difference]: Start difference. First operand 23855 states and 68403 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:08,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:08,047 INFO L93 Difference]: Finished difference Result 49318 states and 139364 transitions. [2022-01-18 11:20:08,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:20:08,048 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:08,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:08,136 INFO L225 Difference]: With dead ends: 49318 [2022-01-18 11:20:08,136 INFO L226 Difference]: Without dead ends: 49318 [2022-01-18 11:20:08,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:20:08,137 INFO L933 BasicCegarLoop]: 930 mSDtfsCounter, 703 mSDsluCounter, 7256 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 8087 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:08,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [703 Valid, 8087 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:08,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49318 states. [2022-01-18 11:20:08,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49318 to 23823. [2022-01-18 11:20:08,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23823 states, 23822 states have (on average 2.8672235748467805) internal successors, (68303), 23822 states have internal predecessors, (68303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:08,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23823 states to 23823 states and 68303 transitions. [2022-01-18 11:20:08,627 INFO L78 Accepts]: Start accepts. Automaton has 23823 states and 68303 transitions. Word has length 263 [2022-01-18 11:20:08,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:08,627 INFO L470 AbstractCegarLoop]: Abstraction has 23823 states and 68303 transitions. [2022-01-18 11:20:08,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:08,628 INFO L276 IsEmpty]: Start isEmpty. Operand 23823 states and 68303 transitions. [2022-01-18 11:20:08,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:08,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:08,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:08,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 11:20:08,658 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:08,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:08,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1128010059, now seen corresponding path program 191 times [2022-01-18 11:20:08,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:08,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175207865] [2022-01-18 11:20:08,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:08,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:08,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:08,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175207865] [2022-01-18 11:20:08,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175207865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:08,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:08,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:08,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857297423] [2022-01-18 11:20:08,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:08,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:08,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:08,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:08,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:08,740 INFO L87 Difference]: Start difference. First operand 23823 states and 68303 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:09,440 INFO L93 Difference]: Finished difference Result 52172 states and 146684 transitions. [2022-01-18 11:20:09,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:20:09,440 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:09,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:09,542 INFO L225 Difference]: With dead ends: 52172 [2022-01-18 11:20:09,543 INFO L226 Difference]: Without dead ends: 52172 [2022-01-18 11:20:09,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:09,543 INFO L933 BasicCegarLoop]: 944 mSDtfsCounter, 836 mSDsluCounter, 6579 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 7423 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:09,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 7423 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:09,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52172 states. [2022-01-18 11:20:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52172 to 23751. [2022-01-18 11:20:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23751 states, 23750 states have (on average 2.8665684210526314) internal successors, (68081), 23750 states have internal predecessors, (68081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:10,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23751 states to 23751 states and 68081 transitions. [2022-01-18 11:20:10,174 INFO L78 Accepts]: Start accepts. Automaton has 23751 states and 68081 transitions. Word has length 263 [2022-01-18 11:20:10,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:10,175 INFO L470 AbstractCegarLoop]: Abstraction has 23751 states and 68081 transitions. [2022-01-18 11:20:10,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:10,175 INFO L276 IsEmpty]: Start isEmpty. Operand 23751 states and 68081 transitions. [2022-01-18 11:20:10,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:10,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:10,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:10,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 11:20:10,206 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:10,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:10,206 INFO L85 PathProgramCache]: Analyzing trace with hash -704044203, now seen corresponding path program 192 times [2022-01-18 11:20:10,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:10,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276194831] [2022-01-18 11:20:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:10,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:10,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:10,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276194831] [2022-01-18 11:20:10,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276194831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:10,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:10,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:10,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978714361] [2022-01-18 11:20:10,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:10,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:10,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:10,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:10,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:10,306 INFO L87 Difference]: Start difference. First operand 23751 states and 68081 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:10,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:10,936 INFO L93 Difference]: Finished difference Result 46319 states and 130880 transitions. [2022-01-18 11:20:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:20:10,937 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:10,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:11,014 INFO L225 Difference]: With dead ends: 46319 [2022-01-18 11:20:11,014 INFO L226 Difference]: Without dead ends: 46319 [2022-01-18 11:20:11,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:20:11,015 INFO L933 BasicCegarLoop]: 839 mSDtfsCounter, 905 mSDsluCounter, 6419 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 7187 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:11,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 7187 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:11,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46319 states. [2022-01-18 11:20:11,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46319 to 24219. [2022-01-18 11:20:11,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24219 states, 24218 states have (on average 2.8788504418201337) internal successors, (69720), 24218 states have internal predecessors, (69720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:11,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24219 states to 24219 states and 69720 transitions. [2022-01-18 11:20:11,511 INFO L78 Accepts]: Start accepts. Automaton has 24219 states and 69720 transitions. Word has length 263 [2022-01-18 11:20:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:11,512 INFO L470 AbstractCegarLoop]: Abstraction has 24219 states and 69720 transitions. [2022-01-18 11:20:11,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:11,512 INFO L276 IsEmpty]: Start isEmpty. Operand 24219 states and 69720 transitions. [2022-01-18 11:20:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:11,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:11,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:11,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 11:20:11,544 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:11,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:11,544 INFO L85 PathProgramCache]: Analyzing trace with hash 247925629, now seen corresponding path program 193 times [2022-01-18 11:20:11,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:11,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383599703] [2022-01-18 11:20:11,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:11,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:11,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:11,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383599703] [2022-01-18 11:20:11,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383599703] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:11,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:11,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:11,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649588799] [2022-01-18 11:20:11,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:11,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:11,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:11,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:11,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:11,629 INFO L87 Difference]: Start difference. First operand 24219 states and 69720 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:12,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:12,309 INFO L93 Difference]: Finished difference Result 47109 states and 133285 transitions. [2022-01-18 11:20:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:20:12,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:12,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:12,390 INFO L225 Difference]: With dead ends: 47109 [2022-01-18 11:20:12,390 INFO L226 Difference]: Without dead ends: 47109 [2022-01-18 11:20:12,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:12,390 INFO L933 BasicCegarLoop]: 865 mSDtfsCounter, 937 mSDsluCounter, 6584 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 7401 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:12,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 7401 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:12,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47109 states. [2022-01-18 11:20:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47109 to 23879. [2022-01-18 11:20:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23879 states, 23878 states have (on average 2.867953764971941) internal successors, (68481), 23878 states have internal predecessors, (68481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23879 states to 23879 states and 68481 transitions. [2022-01-18 11:20:12,944 INFO L78 Accepts]: Start accepts. Automaton has 23879 states and 68481 transitions. Word has length 263 [2022-01-18 11:20:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:12,944 INFO L470 AbstractCegarLoop]: Abstraction has 23879 states and 68481 transitions. [2022-01-18 11:20:12,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 23879 states and 68481 transitions. [2022-01-18 11:20:12,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:12,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:12,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:12,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 11:20:12,975 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:12,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:12,975 INFO L85 PathProgramCache]: Analyzing trace with hash -446559301, now seen corresponding path program 194 times [2022-01-18 11:20:12,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:12,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598566596] [2022-01-18 11:20:12,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:12,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:13,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:13,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598566596] [2022-01-18 11:20:13,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598566596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:13,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:13,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:13,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832793360] [2022-01-18 11:20:13,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:13,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:13,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:13,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:13,057 INFO L87 Difference]: Start difference. First operand 23879 states and 68481 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:13,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:13,726 INFO L93 Difference]: Finished difference Result 48043 states and 135829 transitions. [2022-01-18 11:20:13,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:20:13,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:13,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:13,817 INFO L225 Difference]: With dead ends: 48043 [2022-01-18 11:20:13,818 INFO L226 Difference]: Without dead ends: 48043 [2022-01-18 11:20:13,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:20:13,818 INFO L933 BasicCegarLoop]: 861 mSDtfsCounter, 626 mSDsluCounter, 6682 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 7458 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:13,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 7458 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:13,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48043 states. [2022-01-18 11:20:14,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48043 to 23847. [2022-01-18 11:20:14,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23847 states, 23846 states have (on average 2.867608823282731) internal successors, (68381), 23846 states have internal predecessors, (68381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23847 states to 23847 states and 68381 transitions. [2022-01-18 11:20:14,367 INFO L78 Accepts]: Start accepts. Automaton has 23847 states and 68381 transitions. Word has length 263 [2022-01-18 11:20:14,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:14,367 INFO L470 AbstractCegarLoop]: Abstraction has 23847 states and 68381 transitions. [2022-01-18 11:20:14,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 23847 states and 68381 transitions. [2022-01-18 11:20:14,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:14,400 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:14,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:14,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 11:20:14,400 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:14,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:14,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1051952937, now seen corresponding path program 195 times [2022-01-18 11:20:14,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:14,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031120981] [2022-01-18 11:20:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:14,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:14,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:14,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031120981] [2022-01-18 11:20:14,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031120981] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:14,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:14,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:14,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192556217] [2022-01-18 11:20:14,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:14,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:14,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:14,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:14,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:14,484 INFO L87 Difference]: Start difference. First operand 23847 states and 68381 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:15,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:15,182 INFO L93 Difference]: Finished difference Result 51843 states and 145762 transitions. [2022-01-18 11:20:15,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:20:15,182 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:15,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:15,288 INFO L225 Difference]: With dead ends: 51843 [2022-01-18 11:20:15,288 INFO L226 Difference]: Without dead ends: 51843 [2022-01-18 11:20:15,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:20:15,288 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 738 mSDsluCounter, 6778 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 7561 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:15,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [738 Valid, 7561 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:15,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51843 states. [2022-01-18 11:20:15,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51843 to 23783. [2022-01-18 11:20:15,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23783 states, 23782 states have (on average 2.866916155075267) internal successors, (68181), 23782 states have internal predecessors, (68181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23783 states to 23783 states and 68181 transitions. [2022-01-18 11:20:15,956 INFO L78 Accepts]: Start accepts. Automaton has 23783 states and 68181 transitions. Word has length 263 [2022-01-18 11:20:15,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:15,957 INFO L470 AbstractCegarLoop]: Abstraction has 23783 states and 68181 transitions. [2022-01-18 11:20:15,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:15,957 INFO L276 IsEmpty]: Start isEmpty. Operand 23783 states and 68181 transitions. [2022-01-18 11:20:15,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:15,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:15,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:15,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 11:20:15,988 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:15,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:15,988 INFO L85 PathProgramCache]: Analyzing trace with hash -99789803, now seen corresponding path program 196 times [2022-01-18 11:20:15,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:15,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484536670] [2022-01-18 11:20:15,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:15,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:16,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:16,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484536670] [2022-01-18 11:20:16,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484536670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:16,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:16,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:16,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882882575] [2022-01-18 11:20:16,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:16,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:16,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:16,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:16,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:16,072 INFO L87 Difference]: Start difference. First operand 23783 states and 68181 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:16,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:16,507 INFO L93 Difference]: Finished difference Result 32105 states and 90737 transitions. [2022-01-18 11:20:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:20:16,507 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:16,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:16,563 INFO L225 Difference]: With dead ends: 32105 [2022-01-18 11:20:16,563 INFO L226 Difference]: Without dead ends: 32105 [2022-01-18 11:20:16,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:20:16,564 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 507 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 5639 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:16,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [507 Valid, 5639 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:20:16,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32105 states. [2022-01-18 11:20:16,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32105 to 23735. [2022-01-18 11:20:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23735 states, 23734 states have (on average 2.866647004297632) internal successors, (68037), 23734 states have internal predecessors, (68037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:16,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23735 states to 23735 states and 68037 transitions. [2022-01-18 11:20:16,976 INFO L78 Accepts]: Start accepts. Automaton has 23735 states and 68037 transitions. Word has length 263 [2022-01-18 11:20:16,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:16,976 INFO L470 AbstractCegarLoop]: Abstraction has 23735 states and 68037 transitions. [2022-01-18 11:20:16,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:16,976 INFO L276 IsEmpty]: Start isEmpty. Operand 23735 states and 68037 transitions. [2022-01-18 11:20:17,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:17,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:17,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:17,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 11:20:17,008 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:17,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:17,008 INFO L85 PathProgramCache]: Analyzing trace with hash -923430989, now seen corresponding path program 197 times [2022-01-18 11:20:17,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:17,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479311595] [2022-01-18 11:20:17,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:17,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:17,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:17,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479311595] [2022-01-18 11:20:17,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479311595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:17,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:17,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:17,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479172221] [2022-01-18 11:20:17,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:17,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:17,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:17,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:17,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:17,095 INFO L87 Difference]: Start difference. First operand 23735 states and 68037 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:18,067 INFO L93 Difference]: Finished difference Result 60915 states and 171343 transitions. [2022-01-18 11:20:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:20:18,068 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:18,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:18,190 INFO L225 Difference]: With dead ends: 60915 [2022-01-18 11:20:18,191 INFO L226 Difference]: Without dead ends: 60915 [2022-01-18 11:20:18,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=856, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:20:18,191 INFO L933 BasicCegarLoop]: 977 mSDtfsCounter, 1292 mSDsluCounter, 7140 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 8008 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:18,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1292 Valid, 8008 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:18,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60915 states. [2022-01-18 11:20:18,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60915 to 24107. [2022-01-18 11:20:18,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24107 states, 24106 states have (on average 2.877457894300174) internal successors, (69364), 24106 states have internal predecessors, (69364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24107 states to 24107 states and 69364 transitions. [2022-01-18 11:20:19,066 INFO L78 Accepts]: Start accepts. Automaton has 24107 states and 69364 transitions. Word has length 263 [2022-01-18 11:20:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:19,067 INFO L470 AbstractCegarLoop]: Abstraction has 24107 states and 69364 transitions. [2022-01-18 11:20:19,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 24107 states and 69364 transitions. [2022-01-18 11:20:19,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:19,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:19,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:19,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 11:20:19,098 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:19,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:19,099 INFO L85 PathProgramCache]: Analyzing trace with hash 28538843, now seen corresponding path program 198 times [2022-01-18 11:20:19,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:19,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962566753] [2022-01-18 11:20:19,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:19,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:19,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:19,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:19,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962566753] [2022-01-18 11:20:19,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962566753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:19,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:19,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:19,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140059567] [2022-01-18 11:20:19,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:19,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:19,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:19,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:19,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:19,178 INFO L87 Difference]: Start difference. First operand 24107 states and 69364 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:19,962 INFO L93 Difference]: Finished difference Result 61512 states and 173327 transitions. [2022-01-18 11:20:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:20:19,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:20,077 INFO L225 Difference]: With dead ends: 61512 [2022-01-18 11:20:20,077 INFO L226 Difference]: Without dead ends: 61512 [2022-01-18 11:20:20,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:20:20,078 INFO L933 BasicCegarLoop]: 991 mSDtfsCounter, 1318 mSDsluCounter, 6238 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 7159 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:20,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1318 Valid, 7159 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:20,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61512 states. [2022-01-18 11:20:20,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61512 to 23779. [2022-01-18 11:20:20,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23779 states, 23778 states have (on average 2.8669358230296913) internal successors, (68170), 23778 states have internal predecessors, (68170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23779 states to 23779 states and 68170 transitions. [2022-01-18 11:20:20,703 INFO L78 Accepts]: Start accepts. Automaton has 23779 states and 68170 transitions. Word has length 263 [2022-01-18 11:20:20,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:20,703 INFO L470 AbstractCegarLoop]: Abstraction has 23779 states and 68170 transitions. [2022-01-18 11:20:20,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:20,704 INFO L276 IsEmpty]: Start isEmpty. Operand 23779 states and 68170 transitions. [2022-01-18 11:20:20,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:20,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:20,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:20,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 11:20:20,739 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:20,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:20,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1272981225, now seen corresponding path program 199 times [2022-01-18 11:20:20,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:20,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120551662] [2022-01-18 11:20:20,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:20,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:20,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:20,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:20,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120551662] [2022-01-18 11:20:20,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120551662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:20,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:20,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:20,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977746669] [2022-01-18 11:20:20,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:20,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:20,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:20,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:20,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:20,877 INFO L87 Difference]: Start difference. First operand 23779 states and 68170 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:21,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:21,562 INFO L93 Difference]: Finished difference Result 48500 states and 137130 transitions. [2022-01-18 11:20:21,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:20:21,562 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:21,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:21,650 INFO L225 Difference]: With dead ends: 48500 [2022-01-18 11:20:21,650 INFO L226 Difference]: Without dead ends: 48500 [2022-01-18 11:20:21,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:20:21,650 INFO L933 BasicCegarLoop]: 899 mSDtfsCounter, 983 mSDsluCounter, 6316 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 7140 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:21,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [983 Valid, 7140 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:21,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48500 states. [2022-01-18 11:20:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48500 to 23747. [2022-01-18 11:20:22,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23747 states, 23746 states have (on average 2.866588056935905) internal successors, (68070), 23746 states have internal predecessors, (68070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:22,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23747 states to 23747 states and 68070 transitions. [2022-01-18 11:20:22,164 INFO L78 Accepts]: Start accepts. Automaton has 23747 states and 68070 transitions. Word has length 263 [2022-01-18 11:20:22,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:22,164 INFO L470 AbstractCegarLoop]: Abstraction has 23747 states and 68070 transitions. [2022-01-18 11:20:22,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:22,164 INFO L276 IsEmpty]: Start isEmpty. Operand 23747 states and 68070 transitions. [2022-01-18 11:20:22,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:22,197 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:22,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:22,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 11:20:22,197 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:22,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:22,198 INFO L85 PathProgramCache]: Analyzing trace with hash -199903437, now seen corresponding path program 200 times [2022-01-18 11:20:22,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:22,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588670833] [2022-01-18 11:20:22,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:22,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:22,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:22,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:22,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588670833] [2022-01-18 11:20:22,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588670833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:22,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:22,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:22,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541503922] [2022-01-18 11:20:22,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:22,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:22,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:22,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:22,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:22,280 INFO L87 Difference]: Start difference. First operand 23747 states and 68070 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:23,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:23,204 INFO L93 Difference]: Finished difference Result 63730 states and 179710 transitions. [2022-01-18 11:20:23,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:20:23,205 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:23,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:23,331 INFO L225 Difference]: With dead ends: 63730 [2022-01-18 11:20:23,331 INFO L226 Difference]: Without dead ends: 63730 [2022-01-18 11:20:23,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=203, Invalid=919, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:20:23,331 INFO L933 BasicCegarLoop]: 1056 mSDtfsCounter, 1410 mSDsluCounter, 6891 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 7850 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:23,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1410 Valid, 7850 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:23,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63730 states. [2022-01-18 11:20:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63730 to 24107. [2022-01-18 11:20:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24107 states, 24106 states have (on average 2.877457894300174) internal successors, (69364), 24106 states have internal predecessors, (69364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24107 states to 24107 states and 69364 transitions. [2022-01-18 11:20:23,992 INFO L78 Accepts]: Start accepts. Automaton has 24107 states and 69364 transitions. Word has length 263 [2022-01-18 11:20:23,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:23,992 INFO L470 AbstractCegarLoop]: Abstraction has 24107 states and 69364 transitions. [2022-01-18 11:20:23,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand 24107 states and 69364 transitions. [2022-01-18 11:20:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:24,024 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:24,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:24,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 11:20:24,024 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:24,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:24,025 INFO L85 PathProgramCache]: Analyzing trace with hash 752066395, now seen corresponding path program 201 times [2022-01-18 11:20:24,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:24,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330194360] [2022-01-18 11:20:24,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:24,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:24,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:24,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:24,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330194360] [2022-01-18 11:20:24,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330194360] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:24,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:24,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:24,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850008079] [2022-01-18 11:20:24,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:24,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:24,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:24,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:24,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:24,104 INFO L87 Difference]: Start difference. First operand 24107 states and 69364 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:25,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:25,103 INFO L93 Difference]: Finished difference Result 64130 states and 181130 transitions. [2022-01-18 11:20:25,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:20:25,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:25,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:25,222 INFO L225 Difference]: With dead ends: 64130 [2022-01-18 11:20:25,222 INFO L226 Difference]: Without dead ends: 64130 [2022-01-18 11:20:25,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=195, Invalid=861, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:20:25,222 INFO L933 BasicCegarLoop]: 1031 mSDtfsCounter, 1308 mSDsluCounter, 6790 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 7756 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:25,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1308 Valid, 7756 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:25,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64130 states. [2022-01-18 11:20:25,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64130 to 23779. [2022-01-18 11:20:25,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23779 states, 23778 states have (on average 2.8669358230296913) internal successors, (68170), 23778 states have internal predecessors, (68170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23779 states to 23779 states and 68170 transitions. [2022-01-18 11:20:25,798 INFO L78 Accepts]: Start accepts. Automaton has 23779 states and 68170 transitions. Word has length 263 [2022-01-18 11:20:25,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:25,798 INFO L470 AbstractCegarLoop]: Abstraction has 23779 states and 68170 transitions. [2022-01-18 11:20:25,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:25,798 INFO L276 IsEmpty]: Start isEmpty. Operand 23779 states and 68170 transitions. [2022-01-18 11:20:25,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:25,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:25,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:25,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 11:20:25,829 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:25,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:25,829 INFO L85 PathProgramCache]: Analyzing trace with hash 57581465, now seen corresponding path program 202 times [2022-01-18 11:20:25,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:25,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613285148] [2022-01-18 11:20:25,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:25,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:25,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:25,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613285148] [2022-01-18 11:20:25,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613285148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:25,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:25,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:25,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699504175] [2022-01-18 11:20:25,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:25,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:25,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:25,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:25,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:25,910 INFO L87 Difference]: Start difference. First operand 23779 states and 68170 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:26,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:26,656 INFO L93 Difference]: Finished difference Result 48942 states and 138237 transitions. [2022-01-18 11:20:26,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:20:26,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:26,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:26,737 INFO L225 Difference]: With dead ends: 48942 [2022-01-18 11:20:26,737 INFO L226 Difference]: Without dead ends: 48942 [2022-01-18 11:20:26,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=663, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:20:26,738 INFO L933 BasicCegarLoop]: 982 mSDtfsCounter, 957 mSDsluCounter, 7107 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 7982 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:26,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [957 Valid, 7982 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:26,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48942 states. [2022-01-18 11:20:27,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48942 to 23743. [2022-01-18 11:20:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23743 states, 23742 states have (on average 2.8666076994355993) internal successors, (68059), 23742 states have internal predecessors, (68059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:27,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23743 states to 23743 states and 68059 transitions. [2022-01-18 11:20:27,272 INFO L78 Accepts]: Start accepts. Automaton has 23743 states and 68059 transitions. Word has length 263 [2022-01-18 11:20:27,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:27,273 INFO L470 AbstractCegarLoop]: Abstraction has 23743 states and 68059 transitions. [2022-01-18 11:20:27,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:27,273 INFO L276 IsEmpty]: Start isEmpty. Operand 23743 states and 68059 transitions. [2022-01-18 11:20:27,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:27,303 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:27,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:27,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 11:20:27,303 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:27,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:27,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2116152619, now seen corresponding path program 203 times [2022-01-18 11:20:27,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:27,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478162241] [2022-01-18 11:20:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:27,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:27,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:27,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478162241] [2022-01-18 11:20:27,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478162241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:27,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:27,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:27,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599373974] [2022-01-18 11:20:27,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:27,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:27,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:27,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:27,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:27,384 INFO L87 Difference]: Start difference. First operand 23743 states and 68059 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:28,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:28,396 INFO L93 Difference]: Finished difference Result 78844 states and 222258 transitions. [2022-01-18 11:20:28,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:20:28,396 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:28,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:28,557 INFO L225 Difference]: With dead ends: 78844 [2022-01-18 11:20:28,557 INFO L226 Difference]: Without dead ends: 78844 [2022-01-18 11:20:28,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=1206, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:20:28,557 INFO L933 BasicCegarLoop]: 1122 mSDtfsCounter, 1904 mSDsluCounter, 6784 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1904 SdHoareTripleChecker+Valid, 7802 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:28,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1904 Valid, 7802 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:28,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78844 states. [2022-01-18 11:20:29,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78844 to 24175. [2022-01-18 11:20:29,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24175 states, 24174 states have (on average 2.878423099197485) internal successors, (69583), 24174 states have internal predecessors, (69583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:29,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24175 states to 24175 states and 69583 transitions. [2022-01-18 11:20:29,396 INFO L78 Accepts]: Start accepts. Automaton has 24175 states and 69583 transitions. Word has length 263 [2022-01-18 11:20:29,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:29,396 INFO L470 AbstractCegarLoop]: Abstraction has 24175 states and 69583 transitions. [2022-01-18 11:20:29,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:29,396 INFO L276 IsEmpty]: Start isEmpty. Operand 24175 states and 69583 transitions. [2022-01-18 11:20:29,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:29,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:29,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:29,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-18 11:20:29,432 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:29,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:29,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1164182787, now seen corresponding path program 204 times [2022-01-18 11:20:29,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:29,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132892981] [2022-01-18 11:20:29,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:29,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:29,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:29,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:29,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132892981] [2022-01-18 11:20:29,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132892981] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:29,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:29,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:29,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4474558] [2022-01-18 11:20:29,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:29,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:29,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:29,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:29,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:29,515 INFO L87 Difference]: Start difference. First operand 24175 states and 69583 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:30,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:30,528 INFO L93 Difference]: Finished difference Result 79373 states and 224088 transitions. [2022-01-18 11:20:30,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:20:30,529 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:30,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:30,686 INFO L225 Difference]: With dead ends: 79373 [2022-01-18 11:20:30,686 INFO L226 Difference]: Without dead ends: 79373 [2022-01-18 11:20:30,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=271, Invalid=1135, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:20:30,687 INFO L933 BasicCegarLoop]: 1082 mSDtfsCounter, 1746 mSDsluCounter, 6939 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 7946 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:30,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1746 Valid, 7946 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:30,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79373 states. [2022-01-18 11:20:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79373 to 23839. [2022-01-18 11:20:31,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23839 states, 23838 states have (on average 2.8676482926420004) internal successors, (68359), 23838 states have internal predecessors, (68359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:31,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23839 states to 23839 states and 68359 transitions. [2022-01-18 11:20:31,582 INFO L78 Accepts]: Start accepts. Automaton has 23839 states and 68359 transitions. Word has length 263 [2022-01-18 11:20:31,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:31,582 INFO L470 AbstractCegarLoop]: Abstraction has 23839 states and 68359 transitions. [2022-01-18 11:20:31,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:31,582 INFO L276 IsEmpty]: Start isEmpty. Operand 23839 states and 68359 transitions. [2022-01-18 11:20:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:31,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:31,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:31,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-18 11:20:31,622 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:31,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:31,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1858667717, now seen corresponding path program 205 times [2022-01-18 11:20:31,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:31,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296073404] [2022-01-18 11:20:31,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:31,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:31,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:31,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296073404] [2022-01-18 11:20:31,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296073404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:31,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:31,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:31,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077467236] [2022-01-18 11:20:31,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:31,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:31,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:31,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:31,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:31,714 INFO L87 Difference]: Start difference. First operand 23839 states and 68359 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:32,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:32,611 INFO L93 Difference]: Finished difference Result 64512 states and 182035 transitions. [2022-01-18 11:20:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:20:32,611 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:32,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:32,750 INFO L225 Difference]: With dead ends: 64512 [2022-01-18 11:20:32,750 INFO L226 Difference]: Without dead ends: 64512 [2022-01-18 11:20:32,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=914, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:20:32,751 INFO L933 BasicCegarLoop]: 1049 mSDtfsCounter, 1423 mSDsluCounter, 6077 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 7030 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:32,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1423 Valid, 7030 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1221 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:32,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64512 states. [2022-01-18 11:20:33,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64512 to 23807. [2022-01-18 11:20:33,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23807 states, 23806 states have (on average 2.867302360749391) internal successors, (68259), 23806 states have internal predecessors, (68259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:33,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23807 states to 23807 states and 68259 transitions. [2022-01-18 11:20:33,482 INFO L78 Accepts]: Start accepts. Automaton has 23807 states and 68259 transitions. Word has length 263 [2022-01-18 11:20:33,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:33,482 INFO L470 AbstractCegarLoop]: Abstraction has 23807 states and 68259 transitions. [2022-01-18 11:20:33,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:33,482 INFO L276 IsEmpty]: Start isEmpty. Operand 23807 states and 68259 transitions. [2022-01-18 11:20:33,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:33,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:33,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:33,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-18 11:20:33,513 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:33,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:33,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1830905943, now seen corresponding path program 206 times [2022-01-18 11:20:33,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:33,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558491544] [2022-01-18 11:20:33,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:33,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:33,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:33,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558491544] [2022-01-18 11:20:33,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558491544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:33,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:33,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:33,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884488067] [2022-01-18 11:20:33,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:33,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:33,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:33,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:33,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:33,602 INFO L87 Difference]: Start difference. First operand 23807 states and 68259 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:34,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:34,524 INFO L93 Difference]: Finished difference Result 68018 states and 191344 transitions. [2022-01-18 11:20:34,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 11:20:34,525 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:34,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:34,656 INFO L225 Difference]: With dead ends: 68018 [2022-01-18 11:20:34,656 INFO L226 Difference]: Without dead ends: 68018 [2022-01-18 11:20:34,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 11:20:34,656 INFO L933 BasicCegarLoop]: 1078 mSDtfsCounter, 1514 mSDsluCounter, 6936 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 7895 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:34,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1514 Valid, 7895 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:34,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68018 states. [2022-01-18 11:20:35,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68018 to 23735. [2022-01-18 11:20:35,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23735 states, 23734 states have (on average 2.866647004297632) internal successors, (68037), 23734 states have internal predecessors, (68037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23735 states to 23735 states and 68037 transitions. [2022-01-18 11:20:35,400 INFO L78 Accepts]: Start accepts. Automaton has 23735 states and 68037 transitions. Word has length 263 [2022-01-18 11:20:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:35,400 INFO L470 AbstractCegarLoop]: Abstraction has 23735 states and 68037 transitions. [2022-01-18 11:20:35,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:35,400 INFO L276 IsEmpty]: Start isEmpty. Operand 23735 states and 68037 transitions. [2022-01-18 11:20:35,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:35,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:35,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:35,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-18 11:20:35,432 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:35,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:35,433 INFO L85 PathProgramCache]: Analyzing trace with hash -448706509, now seen corresponding path program 207 times [2022-01-18 11:20:35,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:35,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726373192] [2022-01-18 11:20:35,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:35,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:35,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:35,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:35,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726373192] [2022-01-18 11:20:35,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726373192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:35,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:35,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:35,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929040131] [2022-01-18 11:20:35,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:35,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:35,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:35,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:35,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:35,515 INFO L87 Difference]: Start difference. First operand 23735 states and 68037 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:36,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:36,601 INFO L93 Difference]: Finished difference Result 63611 states and 179389 transitions. [2022-01-18 11:20:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:20:36,602 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:36,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:36,728 INFO L225 Difference]: With dead ends: 63611 [2022-01-18 11:20:36,729 INFO L226 Difference]: Without dead ends: 63611 [2022-01-18 11:20:36,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=203, Invalid=919, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:20:36,729 INFO L933 BasicCegarLoop]: 1058 mSDtfsCounter, 1286 mSDsluCounter, 7256 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 8210 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:36,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1286 Valid, 8210 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:36,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63611 states. [2022-01-18 11:20:37,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63611 to 24099. [2022-01-18 11:20:37,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24099 states, 24098 states have (on average 2.8775002074860985) internal successors, (69342), 24098 states have internal predecessors, (69342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:37,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24099 states to 24099 states and 69342 transitions. [2022-01-18 11:20:37,347 INFO L78 Accepts]: Start accepts. Automaton has 24099 states and 69342 transitions. Word has length 263 [2022-01-18 11:20:37,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:37,347 INFO L470 AbstractCegarLoop]: Abstraction has 24099 states and 69342 transitions. [2022-01-18 11:20:37,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:37,348 INFO L276 IsEmpty]: Start isEmpty. Operand 24099 states and 69342 transitions. [2022-01-18 11:20:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:37,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:37,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:37,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-18 11:20:37,382 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:37,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:37,382 INFO L85 PathProgramCache]: Analyzing trace with hash 503263323, now seen corresponding path program 208 times [2022-01-18 11:20:37,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:37,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536126770] [2022-01-18 11:20:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:37,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:37,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:37,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:37,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536126770] [2022-01-18 11:20:37,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536126770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:37,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:37,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:37,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604040507] [2022-01-18 11:20:37,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:37,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:37,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:37,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:37,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:37,472 INFO L87 Difference]: Start difference. First operand 24099 states and 69342 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:38,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:38,415 INFO L93 Difference]: Finished difference Result 64334 states and 181707 transitions. [2022-01-18 11:20:38,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:20:38,416 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:38,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:38,548 INFO L225 Difference]: With dead ends: 64334 [2022-01-18 11:20:38,548 INFO L226 Difference]: Without dead ends: 64334 [2022-01-18 11:20:38,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=195, Invalid=861, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:20:38,548 INFO L933 BasicCegarLoop]: 1115 mSDtfsCounter, 1245 mSDsluCounter, 7489 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 8522 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:38,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 8522 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:38,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64334 states. [2022-01-18 11:20:39,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64334 to 23771. [2022-01-18 11:20:39,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23771 states, 23770 states have (on average 2.8669751787968027) internal successors, (68148), 23770 states have internal predecessors, (68148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:39,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23771 states to 23771 states and 68148 transitions. [2022-01-18 11:20:39,176 INFO L78 Accepts]: Start accepts. Automaton has 23771 states and 68148 transitions. Word has length 263 [2022-01-18 11:20:39,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:39,176 INFO L470 AbstractCegarLoop]: Abstraction has 23771 states and 68148 transitions. [2022-01-18 11:20:39,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:39,177 INFO L276 IsEmpty]: Start isEmpty. Operand 23771 states and 68148 transitions. [2022-01-18 11:20:39,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:39,209 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:39,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:39,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-18 11:20:39,209 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:39,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:39,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1747705705, now seen corresponding path program 209 times [2022-01-18 11:20:39,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:39,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931121126] [2022-01-18 11:20:39,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:39,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:39,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:39,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:39,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931121126] [2022-01-18 11:20:39,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931121126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:39,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:39,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:39,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031761606] [2022-01-18 11:20:39,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:39,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:39,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:39,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:39,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:39,285 INFO L87 Difference]: Start difference. First operand 23771 states and 68148 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:39,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:39,966 INFO L93 Difference]: Finished difference Result 48878 states and 138181 transitions. [2022-01-18 11:20:39,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:20:39,966 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:39,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:40,055 INFO L225 Difference]: With dead ends: 48878 [2022-01-18 11:20:40,055 INFO L226 Difference]: Without dead ends: 48878 [2022-01-18 11:20:40,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:20:40,055 INFO L933 BasicCegarLoop]: 961 mSDtfsCounter, 947 mSDsluCounter, 6362 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 7253 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:40,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 7253 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:40,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48878 states. [2022-01-18 11:20:40,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48878 to 23739. [2022-01-18 11:20:40,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23739 states, 23738 states have (on average 2.8666273485550593) internal successors, (68048), 23738 states have internal predecessors, (68048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:40,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23739 states to 23739 states and 68048 transitions. [2022-01-18 11:20:40,555 INFO L78 Accepts]: Start accepts. Automaton has 23739 states and 68048 transitions. Word has length 263 [2022-01-18 11:20:40,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:40,555 INFO L470 AbstractCegarLoop]: Abstraction has 23739 states and 68048 transitions. [2022-01-18 11:20:40,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 23739 states and 68048 transitions. [2022-01-18 11:20:40,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:40,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:40,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:40,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-18 11:20:40,587 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:40,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:40,587 INFO L85 PathProgramCache]: Analyzing trace with hash 274821043, now seen corresponding path program 210 times [2022-01-18 11:20:40,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:40,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422561249] [2022-01-18 11:20:40,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:40,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:40,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:40,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422561249] [2022-01-18 11:20:40,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422561249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:40,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:40,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:40,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122090146] [2022-01-18 11:20:40,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:40,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:40,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:40,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:40,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:40,668 INFO L87 Difference]: Start difference. First operand 23739 states and 68048 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:41,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:41,538 INFO L93 Difference]: Finished difference Result 63846 states and 180070 transitions. [2022-01-18 11:20:41,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:20:41,538 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:41,662 INFO L225 Difference]: With dead ends: 63846 [2022-01-18 11:20:41,663 INFO L226 Difference]: Without dead ends: 63846 [2022-01-18 11:20:41,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=753, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:20:41,663 INFO L933 BasicCegarLoop]: 1040 mSDtfsCounter, 1345 mSDsluCounter, 6749 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 7703 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:41,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1345 Valid, 7703 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:41,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63846 states. [2022-01-18 11:20:42,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63846 to 24099. [2022-01-18 11:20:42,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24099 states, 24098 states have (on average 2.8775002074860985) internal successors, (69342), 24098 states have internal predecessors, (69342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:42,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24099 states to 24099 states and 69342 transitions. [2022-01-18 11:20:42,324 INFO L78 Accepts]: Start accepts. Automaton has 24099 states and 69342 transitions. Word has length 263 [2022-01-18 11:20:42,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:42,324 INFO L470 AbstractCegarLoop]: Abstraction has 24099 states and 69342 transitions. [2022-01-18 11:20:42,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:42,324 INFO L276 IsEmpty]: Start isEmpty. Operand 24099 states and 69342 transitions. [2022-01-18 11:20:42,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:42,357 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:42,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:42,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-18 11:20:42,357 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:42,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:42,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1226790875, now seen corresponding path program 211 times [2022-01-18 11:20:42,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:42,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209719835] [2022-01-18 11:20:42,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:42,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:42,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:42,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:42,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209719835] [2022-01-18 11:20:42,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209719835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:42,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:42,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:42,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221143381] [2022-01-18 11:20:42,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:42,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:42,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:42,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:42,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:42,439 INFO L87 Difference]: Start difference. First operand 24099 states and 69342 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:43,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:43,270 INFO L93 Difference]: Finished difference Result 64432 states and 181985 transitions. [2022-01-18 11:20:43,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:20:43,271 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:43,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:43,402 INFO L225 Difference]: With dead ends: 64432 [2022-01-18 11:20:43,402 INFO L226 Difference]: Without dead ends: 64432 [2022-01-18 11:20:43,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2022-01-18 11:20:43,402 INFO L933 BasicCegarLoop]: 1048 mSDtfsCounter, 1272 mSDsluCounter, 6795 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 7785 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:43,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1272 Valid, 7785 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:43,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64432 states. [2022-01-18 11:20:43,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64432 to 23771. [2022-01-18 11:20:43,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23771 states, 23770 states have (on average 2.8669751787968027) internal successors, (68148), 23770 states have internal predecessors, (68148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:44,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23771 states to 23771 states and 68148 transitions. [2022-01-18 11:20:44,031 INFO L78 Accepts]: Start accepts. Automaton has 23771 states and 68148 transitions. Word has length 263 [2022-01-18 11:20:44,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:44,031 INFO L470 AbstractCegarLoop]: Abstraction has 23771 states and 68148 transitions. [2022-01-18 11:20:44,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:44,032 INFO L276 IsEmpty]: Start isEmpty. Operand 23771 states and 68148 transitions. [2022-01-18 11:20:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:44,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:44,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:44,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-18 11:20:44,062 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:44,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:44,063 INFO L85 PathProgramCache]: Analyzing trace with hash 532305945, now seen corresponding path program 212 times [2022-01-18 11:20:44,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:44,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395427738] [2022-01-18 11:20:44,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:44,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:44,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:44,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395427738] [2022-01-18 11:20:44,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395427738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:44,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:44,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:44,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825288654] [2022-01-18 11:20:44,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:44,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:44,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:44,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:44,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:44,146 INFO L87 Difference]: Start difference. First operand 23771 states and 68148 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:44,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:44,875 INFO L93 Difference]: Finished difference Result 49114 states and 138747 transitions. [2022-01-18 11:20:44,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:20:44,875 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:44,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:44,961 INFO L225 Difference]: With dead ends: 49114 [2022-01-18 11:20:44,961 INFO L226 Difference]: Without dead ends: 49114 [2022-01-18 11:20:44,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:20:44,961 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 947 mSDsluCounter, 6635 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 7512 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:44,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 7512 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:45,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49114 states. [2022-01-18 11:20:45,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49114 to 23735. [2022-01-18 11:20:45,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23735 states, 23734 states have (on average 2.866647004297632) internal successors, (68037), 23734 states have internal predecessors, (68037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23735 states to 23735 states and 68037 transitions. [2022-01-18 11:20:45,474 INFO L78 Accepts]: Start accepts. Automaton has 23735 states and 68037 transitions. Word has length 263 [2022-01-18 11:20:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:45,474 INFO L470 AbstractCegarLoop]: Abstraction has 23735 states and 68037 transitions. [2022-01-18 11:20:45,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:45,474 INFO L276 IsEmpty]: Start isEmpty. Operand 23735 states and 68037 transitions. [2022-01-18 11:20:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:45,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:45,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:45,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-18 11:20:45,504 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:45,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash 20976341, now seen corresponding path program 213 times [2022-01-18 11:20:45,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:45,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922902982] [2022-01-18 11:20:45,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:45,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:45,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:45,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922902982] [2022-01-18 11:20:45,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922902982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:45,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:45,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:45,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039076571] [2022-01-18 11:20:45,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:45,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:45,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:45,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:45,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:45,588 INFO L87 Difference]: Start difference. First operand 23735 states and 68037 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:46,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:46,723 INFO L93 Difference]: Finished difference Result 63317 states and 178577 transitions. [2022-01-18 11:20:46,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:20:46,723 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:46,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:46,861 INFO L225 Difference]: With dead ends: 63317 [2022-01-18 11:20:46,861 INFO L226 Difference]: Without dead ends: 63317 [2022-01-18 11:20:46,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:20:46,862 INFO L933 BasicCegarLoop]: 1106 mSDtfsCounter, 1585 mSDsluCounter, 7197 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 8202 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:46,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 8202 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:20:47,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63317 states. [2022-01-18 11:20:47,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63317 to 24087. [2022-01-18 11:20:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24087 states, 24086 states have (on average 2.877563729967616) internal successors, (69309), 24086 states have internal predecessors, (69309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:47,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24087 states to 24087 states and 69309 transitions. [2022-01-18 11:20:47,638 INFO L78 Accepts]: Start accepts. Automaton has 24087 states and 69309 transitions. Word has length 263 [2022-01-18 11:20:47,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:47,638 INFO L470 AbstractCegarLoop]: Abstraction has 24087 states and 69309 transitions. [2022-01-18 11:20:47,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:47,639 INFO L276 IsEmpty]: Start isEmpty. Operand 24087 states and 69309 transitions. [2022-01-18 11:20:47,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:47,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:47,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:47,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-18 11:20:47,675 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:47,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:47,676 INFO L85 PathProgramCache]: Analyzing trace with hash 972946173, now seen corresponding path program 214 times [2022-01-18 11:20:47,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:47,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173334244] [2022-01-18 11:20:47,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:47,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:47,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:47,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:47,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173334244] [2022-01-18 11:20:47,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173334244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:47,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:47,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:47,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123933696] [2022-01-18 11:20:47,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:47,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:47,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:47,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:47,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:47,780 INFO L87 Difference]: Start difference. First operand 24087 states and 69309 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:48,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:48,848 INFO L93 Difference]: Finished difference Result 64229 states and 181396 transitions. [2022-01-18 11:20:48,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:20:48,848 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:48,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:48,969 INFO L225 Difference]: With dead ends: 64229 [2022-01-18 11:20:48,969 INFO L226 Difference]: Without dead ends: 64229 [2022-01-18 11:20:48,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=269, Invalid=1137, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:20:48,969 INFO L933 BasicCegarLoop]: 1178 mSDtfsCounter, 1544 mSDsluCounter, 7784 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 8879 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:48,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 8879 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:20:49,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64229 states. [2022-01-18 11:20:49,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64229 to 23751. [2022-01-18 11:20:49,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23751 states, 23750 states have (on average 2.8667368421052632) internal successors, (68085), 23750 states have internal predecessors, (68085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23751 states to 23751 states and 68085 transitions. [2022-01-18 11:20:49,628 INFO L78 Accepts]: Start accepts. Automaton has 23751 states and 68085 transitions. Word has length 263 [2022-01-18 11:20:49,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:49,628 INFO L470 AbstractCegarLoop]: Abstraction has 23751 states and 68085 transitions. [2022-01-18 11:20:49,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:49,628 INFO L276 IsEmpty]: Start isEmpty. Operand 23751 states and 68085 transitions. [2022-01-18 11:20:49,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:49,660 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:49,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:49,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-18 11:20:49,660 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:49,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:49,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2077578741, now seen corresponding path program 215 times [2022-01-18 11:20:49,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:49,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621402331] [2022-01-18 11:20:49,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:49,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:49,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:49,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:49,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621402331] [2022-01-18 11:20:49,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621402331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:49,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:49,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:49,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050447428] [2022-01-18 11:20:49,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:49,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:49,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:49,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:49,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:49,759 INFO L87 Difference]: Start difference. First operand 23751 states and 68085 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:50,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:50,585 INFO L93 Difference]: Finished difference Result 48893 states and 138200 transitions. [2022-01-18 11:20:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:20:50,586 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:50,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:50,672 INFO L225 Difference]: With dead ends: 48893 [2022-01-18 11:20:50,672 INFO L226 Difference]: Without dead ends: 48893 [2022-01-18 11:20:50,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=201, Invalid=855, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:20:50,672 INFO L933 BasicCegarLoop]: 1024 mSDtfsCounter, 1189 mSDsluCounter, 7106 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 8054 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:50,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1189 Valid, 8054 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:50,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48893 states. [2022-01-18 11:20:51,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48893 to 23719. [2022-01-18 11:20:51,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23719 states, 23718 states have (on average 2.8663883969980604) internal successors, (67985), 23718 states have internal predecessors, (67985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:51,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23719 states to 23719 states and 67985 transitions. [2022-01-18 11:20:51,289 INFO L78 Accepts]: Start accepts. Automaton has 23719 states and 67985 transitions. Word has length 263 [2022-01-18 11:20:51,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:51,290 INFO L470 AbstractCegarLoop]: Abstraction has 23719 states and 67985 transitions. [2022-01-18 11:20:51,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:51,290 INFO L276 IsEmpty]: Start isEmpty. Operand 23719 states and 67985 transitions. [2022-01-18 11:20:51,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:51,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:51,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:51,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-18 11:20:51,325 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:51,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:51,325 INFO L85 PathProgramCache]: Analyzing trace with hash -2117830617, now seen corresponding path program 216 times [2022-01-18 11:20:51,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:51,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188621802] [2022-01-18 11:20:51,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:51,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:51,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:51,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:51,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188621802] [2022-01-18 11:20:51,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188621802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:51,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:51,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:51,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499193962] [2022-01-18 11:20:51,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:51,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:51,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:51,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:51,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:51,405 INFO L87 Difference]: Start difference. First operand 23719 states and 67985 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:52,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:52,247 INFO L93 Difference]: Finished difference Result 52513 states and 147749 transitions. [2022-01-18 11:20:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:20:52,248 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:52,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:52,355 INFO L225 Difference]: With dead ends: 52513 [2022-01-18 11:20:52,356 INFO L226 Difference]: Without dead ends: 52513 [2022-01-18 11:20:52,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=215, Invalid=907, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:20:52,356 INFO L933 BasicCegarLoop]: 1051 mSDtfsCounter, 1344 mSDsluCounter, 6941 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 7917 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:52,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 7917 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:52,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52513 states. [2022-01-18 11:20:52,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52513 to 23623. [2022-01-18 11:20:52,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23623 states, 23622 states have (on average 2.865845398357463) internal successors, (67697), 23622 states have internal predecessors, (67697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:53,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23623 states to 23623 states and 67697 transitions. [2022-01-18 11:20:53,020 INFO L78 Accepts]: Start accepts. Automaton has 23623 states and 67697 transitions. Word has length 263 [2022-01-18 11:20:53,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:53,020 INFO L470 AbstractCegarLoop]: Abstraction has 23623 states and 67697 transitions. [2022-01-18 11:20:53,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:53,021 INFO L276 IsEmpty]: Start isEmpty. Operand 23623 states and 67697 transitions. [2022-01-18 11:20:53,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:53,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:53,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:53,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-18 11:20:53,050 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:53,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:53,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2128498637, now seen corresponding path program 217 times [2022-01-18 11:20:53,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:53,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053199036] [2022-01-18 11:20:53,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:53,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:53,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:53,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053199036] [2022-01-18 11:20:53,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053199036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:53,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:53,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:53,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541744506] [2022-01-18 11:20:53,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:53,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:53,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:53,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:53,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:53,130 INFO L87 Difference]: Start difference. First operand 23623 states and 67697 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:53,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:53,780 INFO L93 Difference]: Finished difference Result 45758 states and 129263 transitions. [2022-01-18 11:20:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:20:53,780 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:53,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:53,868 INFO L225 Difference]: With dead ends: 45758 [2022-01-18 11:20:53,868 INFO L226 Difference]: Without dead ends: 45758 [2022-01-18 11:20:53,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:20:53,869 INFO L933 BasicCegarLoop]: 864 mSDtfsCounter, 927 mSDsluCounter, 5456 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 6241 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:53,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 6241 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:53,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45758 states. [2022-01-18 11:20:54,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45758 to 23999. [2022-01-18 11:20:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23999 states, 23998 states have (on average 2.8766980581715145) internal successors, (69035), 23998 states have internal predecessors, (69035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:54,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23999 states to 23999 states and 69035 transitions. [2022-01-18 11:20:54,568 INFO L78 Accepts]: Start accepts. Automaton has 23999 states and 69035 transitions. Word has length 263 [2022-01-18 11:20:54,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:54,568 INFO L470 AbstractCegarLoop]: Abstraction has 23999 states and 69035 transitions. [2022-01-18 11:20:54,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:54,568 INFO L276 IsEmpty]: Start isEmpty. Operand 23999 states and 69035 transitions. [2022-01-18 11:20:54,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:54,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:54,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:54,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-18 11:20:54,600 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:54,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:54,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1176528805, now seen corresponding path program 218 times [2022-01-18 11:20:54,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:54,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130976530] [2022-01-18 11:20:54,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:54,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:54,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:54,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:54,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130976530] [2022-01-18 11:20:54,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130976530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:54,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:54,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:54,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659535620] [2022-01-18 11:20:54,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:54,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:54,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:54,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:54,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:54,679 INFO L87 Difference]: Start difference. First operand 23999 states and 69035 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:55,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:55,275 INFO L93 Difference]: Finished difference Result 46691 states and 132083 transitions. [2022-01-18 11:20:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:20:55,276 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:55,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:55,361 INFO L225 Difference]: With dead ends: 46691 [2022-01-18 11:20:55,361 INFO L226 Difference]: Without dead ends: 46691 [2022-01-18 11:20:55,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:20:55,361 INFO L933 BasicCegarLoop]: 880 mSDtfsCounter, 925 mSDsluCounter, 5596 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 6414 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:55,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [925 Valid, 6414 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:20:55,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46691 states. [2022-01-18 11:20:55,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46691 to 23671. [2022-01-18 11:20:55,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23671 states, 23670 states have (on average 2.866117448246726) internal successors, (67841), 23670 states have internal predecessors, (67841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:56,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23671 states to 23671 states and 67841 transitions. [2022-01-18 11:20:56,067 INFO L78 Accepts]: Start accepts. Automaton has 23671 states and 67841 transitions. Word has length 263 [2022-01-18 11:20:56,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:56,067 INFO L470 AbstractCegarLoop]: Abstraction has 23671 states and 67841 transitions. [2022-01-18 11:20:56,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:56,067 INFO L276 IsEmpty]: Start isEmpty. Operand 23671 states and 67841 transitions. [2022-01-18 11:20:56,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:56,096 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:56,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:56,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-18 11:20:56,096 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:56,097 INFO L85 PathProgramCache]: Analyzing trace with hash 67913577, now seen corresponding path program 219 times [2022-01-18 11:20:56,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:56,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394974450] [2022-01-18 11:20:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:56,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:56,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:56,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:56,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394974450] [2022-01-18 11:20:56,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394974450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:56,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:56,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:56,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598328905] [2022-01-18 11:20:56,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:56,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:56,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:56,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:56,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:56,172 INFO L87 Difference]: Start difference. First operand 23671 states and 67841 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:56,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:56,632 INFO L93 Difference]: Finished difference Result 31235 states and 88557 transitions. [2022-01-18 11:20:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:20:56,632 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:56,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:56,685 INFO L225 Difference]: With dead ends: 31235 [2022-01-18 11:20:56,685 INFO L226 Difference]: Without dead ends: 31235 [2022-01-18 11:20:56,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:20:56,685 INFO L933 BasicCegarLoop]: 728 mSDtfsCounter, 663 mSDsluCounter, 4627 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 5301 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:56,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [663 Valid, 5301 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:20:56,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31235 states. [2022-01-18 11:20:57,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31235 to 23639. [2022-01-18 11:20:57,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23639 states, 23638 states have (on average 2.865766985362552) internal successors, (67741), 23638 states have internal predecessors, (67741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:57,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23639 states to 23639 states and 67741 transitions. [2022-01-18 11:20:57,075 INFO L78 Accepts]: Start accepts. Automaton has 23639 states and 67741 transitions. Word has length 263 [2022-01-18 11:20:57,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:57,075 INFO L470 AbstractCegarLoop]: Abstraction has 23639 states and 67741 transitions. [2022-01-18 11:20:57,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:57,075 INFO L276 IsEmpty]: Start isEmpty. Operand 23639 states and 67741 transitions. [2022-01-18 11:20:57,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:57,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:57,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:57,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-18 11:20:57,105 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:57,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:57,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1404971085, now seen corresponding path program 220 times [2022-01-18 11:20:57,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:57,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712620056] [2022-01-18 11:20:57,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:57,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:57,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:57,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:57,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712620056] [2022-01-18 11:20:57,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712620056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:57,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:57,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:57,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942192105] [2022-01-18 11:20:57,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:57,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:57,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:57,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:57,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:57,189 INFO L87 Difference]: Start difference. First operand 23639 states and 67741 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:58,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:58,040 INFO L93 Difference]: Finished difference Result 46730 states and 131959 transitions. [2022-01-18 11:20:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:20:58,041 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:58,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:58,117 INFO L225 Difference]: With dead ends: 46730 [2022-01-18 11:20:58,117 INFO L226 Difference]: Without dead ends: 46730 [2022-01-18 11:20:58,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:20:58,118 INFO L933 BasicCegarLoop]: 912 mSDtfsCounter, 1016 mSDsluCounter, 6503 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 7323 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:58,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 7323 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:20:58,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46730 states. [2022-01-18 11:20:58,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46730 to 23999. [2022-01-18 11:20:58,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23999 states, 23998 states have (on average 2.8766980581715145) internal successors, (69035), 23998 states have internal predecessors, (69035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:58,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23999 states to 23999 states and 69035 transitions. [2022-01-18 11:20:58,644 INFO L78 Accepts]: Start accepts. Automaton has 23999 states and 69035 transitions. Word has length 263 [2022-01-18 11:20:58,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:58,644 INFO L470 AbstractCegarLoop]: Abstraction has 23999 states and 69035 transitions. [2022-01-18 11:20:58,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:58,644 INFO L276 IsEmpty]: Start isEmpty. Operand 23999 states and 69035 transitions. [2022-01-18 11:20:58,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:20:58,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:58,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:58,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-18 11:20:58,678 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:58,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:58,678 INFO L85 PathProgramCache]: Analyzing trace with hash -453001253, now seen corresponding path program 221 times [2022-01-18 11:20:58,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:58,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022532417] [2022-01-18 11:20:58,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:58,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:58,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:58,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022532417] [2022-01-18 11:20:58,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022532417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:58,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:58,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:20:58,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722637632] [2022-01-18 11:20:58,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:58,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:20:58,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:58,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:20:58,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:20:58,759 INFO L87 Difference]: Start difference. First operand 23999 states and 69035 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:59,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:59,547 INFO L93 Difference]: Finished difference Result 47403 states and 134048 transitions. [2022-01-18 11:20:59,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:20:59,547 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:20:59,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:59,631 INFO L225 Difference]: With dead ends: 47403 [2022-01-18 11:20:59,631 INFO L226 Difference]: Without dead ends: 47403 [2022-01-18 11:20:59,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:20:59,631 INFO L933 BasicCegarLoop]: 890 mSDtfsCounter, 1030 mSDsluCounter, 6365 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 7198 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:59,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 7198 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:59,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47403 states. [2022-01-18 11:21:00,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47403 to 23671. [2022-01-18 11:21:00,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23671 states, 23670 states have (on average 2.866117448246726) internal successors, (67841), 23670 states have internal predecessors, (67841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:00,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23671 states to 23671 states and 67841 transitions. [2022-01-18 11:21:00,149 INFO L78 Accepts]: Start accepts. Automaton has 23671 states and 67841 transitions. Word has length 263 [2022-01-18 11:21:00,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:00,149 INFO L470 AbstractCegarLoop]: Abstraction has 23671 states and 67841 transitions. [2022-01-18 11:21:00,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:00,150 INFO L276 IsEmpty]: Start isEmpty. Operand 23671 states and 67841 transitions. [2022-01-18 11:21:00,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:00,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:00,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:00,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-18 11:21:00,182 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:00,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:00,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1147486183, now seen corresponding path program 222 times [2022-01-18 11:21:00,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:00,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253999425] [2022-01-18 11:21:00,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:00,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:00,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:00,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253999425] [2022-01-18 11:21:00,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253999425] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:00,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:00,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:00,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64052943] [2022-01-18 11:21:00,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:00,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:00,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:00,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:00,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:00,258 INFO L87 Difference]: Start difference. First operand 23671 states and 67841 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:00,873 INFO L93 Difference]: Finished difference Result 31942 states and 90486 transitions. [2022-01-18 11:21:00,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:21:00,873 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:00,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:00,931 INFO L225 Difference]: With dead ends: 31942 [2022-01-18 11:21:00,931 INFO L226 Difference]: Without dead ends: 31942 [2022-01-18 11:21:00,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:21:00,931 INFO L933 BasicCegarLoop]: 810 mSDtfsCounter, 649 mSDsluCounter, 5487 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 6218 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:00,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 6218 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:21:00,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31942 states. [2022-01-18 11:21:01,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31942 to 23635. [2022-01-18 11:21:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23635 states, 23634 states have (on average 2.8657865786578656) internal successors, (67730), 23634 states have internal predecessors, (67730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:01,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23635 states to 23635 states and 67730 transitions. [2022-01-18 11:21:01,393 INFO L78 Accepts]: Start accepts. Automaton has 23635 states and 67730 transitions. Word has length 263 [2022-01-18 11:21:01,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:01,394 INFO L470 AbstractCegarLoop]: Abstraction has 23635 states and 67730 transitions. [2022-01-18 11:21:01,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:01,394 INFO L276 IsEmpty]: Start isEmpty. Operand 23635 states and 67730 transitions. [2022-01-18 11:21:01,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:01,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:01,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:01,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-18 11:21:01,426 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:01,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:01,427 INFO L85 PathProgramCache]: Analyzing trace with hash 973747029, now seen corresponding path program 223 times [2022-01-18 11:21:01,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:01,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880119546] [2022-01-18 11:21:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:01,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:01,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:01,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880119546] [2022-01-18 11:21:01,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880119546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:01,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:01,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:01,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413456522] [2022-01-18 11:21:01,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:01,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:01,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:01,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:01,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:01,507 INFO L87 Difference]: Start difference. First operand 23635 states and 67730 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:02,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:02,512 INFO L93 Difference]: Finished difference Result 63280 states and 178502 transitions. [2022-01-18 11:21:02,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:21:02,513 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:02,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:02,796 INFO L225 Difference]: With dead ends: 63280 [2022-01-18 11:21:02,796 INFO L226 Difference]: Without dead ends: 63280 [2022-01-18 11:21:02,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=188, Invalid=868, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:21:02,796 INFO L933 BasicCegarLoop]: 1055 mSDtfsCounter, 1373 mSDsluCounter, 7313 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 8263 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:02,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1373 Valid, 8263 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:02,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63280 states. [2022-01-18 11:21:03,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63280 to 24067. [2022-01-18 11:21:03,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24067 states, 24066 states have (on average 2.877669741544087) internal successors, (69254), 24066 states have internal predecessors, (69254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:03,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24067 states to 24067 states and 69254 transitions. [2022-01-18 11:21:03,342 INFO L78 Accepts]: Start accepts. Automaton has 24067 states and 69254 transitions. Word has length 263 [2022-01-18 11:21:03,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:03,343 INFO L470 AbstractCegarLoop]: Abstraction has 24067 states and 69254 transitions. [2022-01-18 11:21:03,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:03,343 INFO L276 IsEmpty]: Start isEmpty. Operand 24067 states and 69254 transitions. [2022-01-18 11:21:03,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:03,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:03,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:03,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-18 11:21:03,374 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:03,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:03,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1925716861, now seen corresponding path program 224 times [2022-01-18 11:21:03,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:03,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844373679] [2022-01-18 11:21:03,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:03,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:03,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:03,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:03,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844373679] [2022-01-18 11:21:03,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844373679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:03,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:03,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:03,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951174756] [2022-01-18 11:21:03,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:03,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:03,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:03,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:03,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:03,455 INFO L87 Difference]: Start difference. First operand 24067 states and 69254 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:04,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:04,401 INFO L93 Difference]: Finished difference Result 63989 states and 180745 transitions. [2022-01-18 11:21:04,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:21:04,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:04,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:04,516 INFO L225 Difference]: With dead ends: 63989 [2022-01-18 11:21:04,517 INFO L226 Difference]: Without dead ends: 63989 [2022-01-18 11:21:04,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=808, Unknown=0, NotChecked=0, Total=992 [2022-01-18 11:21:04,517 INFO L933 BasicCegarLoop]: 1034 mSDtfsCounter, 1300 mSDsluCounter, 7221 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 8184 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:04,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 8184 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:04,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63989 states. [2022-01-18 11:21:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63989 to 23731. [2022-01-18 11:21:05,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23731 states, 23730 states have (on average 2.866835229667088) internal successors, (68030), 23730 states have internal predecessors, (68030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:05,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23731 states to 23731 states and 68030 transitions. [2022-01-18 11:21:05,156 INFO L78 Accepts]: Start accepts. Automaton has 23731 states and 68030 transitions. Word has length 263 [2022-01-18 11:21:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:05,156 INFO L470 AbstractCegarLoop]: Abstraction has 23731 states and 68030 transitions. [2022-01-18 11:21:05,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:05,156 INFO L276 IsEmpty]: Start isEmpty. Operand 23731 states and 68030 transitions. [2022-01-18 11:21:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:05,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:05,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:05,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-18 11:21:05,186 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:05,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:05,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1231231931, now seen corresponding path program 225 times [2022-01-18 11:21:05,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:05,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598444155] [2022-01-18 11:21:05,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:05,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:05,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:05,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:05,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598444155] [2022-01-18 11:21:05,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598444155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:05,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:05,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:05,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449538008] [2022-01-18 11:21:05,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:05,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:05,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:05,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:05,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:05,265 INFO L87 Difference]: Start difference. First operand 23731 states and 68030 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:06,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:06,089 INFO L93 Difference]: Finished difference Result 48984 states and 138394 transitions. [2022-01-18 11:21:06,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:21:06,090 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:06,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:06,173 INFO L225 Difference]: With dead ends: 48984 [2022-01-18 11:21:06,174 INFO L226 Difference]: Without dead ends: 48984 [2022-01-18 11:21:06,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:21:06,174 INFO L933 BasicCegarLoop]: 982 mSDtfsCounter, 921 mSDsluCounter, 7207 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 8079 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:06,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 8079 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:06,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48984 states. [2022-01-18 11:21:06,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48984 to 23699. [2022-01-18 11:21:06,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23699 states, 23698 states have (on average 2.866486623343742) internal successors, (67930), 23698 states have internal predecessors, (67930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23699 states to 23699 states and 67930 transitions. [2022-01-18 11:21:06,685 INFO L78 Accepts]: Start accepts. Automaton has 23699 states and 67930 transitions. Word has length 263 [2022-01-18 11:21:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:06,685 INFO L470 AbstractCegarLoop]: Abstraction has 23699 states and 67930 transitions. [2022-01-18 11:21:06,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 23699 states and 67930 transitions. [2022-01-18 11:21:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:06,716 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:06,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:06,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-18 11:21:06,716 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:06,717 INFO L85 PathProgramCache]: Analyzing trace with hash 625838295, now seen corresponding path program 226 times [2022-01-18 11:21:06,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:06,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483037501] [2022-01-18 11:21:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:06,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:06,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:06,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:06,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483037501] [2022-01-18 11:21:06,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483037501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:06,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:06,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:06,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56789814] [2022-01-18 11:21:06,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:06,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:06,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:06,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:06,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:06,791 INFO L87 Difference]: Start difference. First operand 23699 states and 67930 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:07,618 INFO L93 Difference]: Finished difference Result 51838 states and 145714 transitions. [2022-01-18 11:21:07,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:21:07,618 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:07,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:07,713 INFO L225 Difference]: With dead ends: 51838 [2022-01-18 11:21:07,713 INFO L226 Difference]: Without dead ends: 51838 [2022-01-18 11:21:07,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:21:07,714 INFO L933 BasicCegarLoop]: 996 mSDtfsCounter, 1054 mSDsluCounter, 6665 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 7550 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:07,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 7550 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:07,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51838 states. [2022-01-18 11:21:08,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51838 to 23627. [2022-01-18 11:21:08,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23627 states, 23626 states have (on average 2.865825785151951) internal successors, (67708), 23626 states have internal predecessors, (67708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:08,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23627 states to 23627 states and 67708 transitions. [2022-01-18 11:21:08,245 INFO L78 Accepts]: Start accepts. Automaton has 23627 states and 67708 transitions. Word has length 263 [2022-01-18 11:21:08,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:08,245 INFO L470 AbstractCegarLoop]: Abstraction has 23627 states and 67708 transitions. [2022-01-18 11:21:08,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:08,245 INFO L276 IsEmpty]: Start isEmpty. Operand 23627 states and 67708 transitions. [2022-01-18 11:21:08,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:08,279 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:08,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:08,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-18 11:21:08,279 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:08,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:08,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1049804151, now seen corresponding path program 227 times [2022-01-18 11:21:08,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:08,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755004845] [2022-01-18 11:21:08,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:08,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:08,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:08,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:08,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755004845] [2022-01-18 11:21:08,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755004845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:08,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:08,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:08,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062701647] [2022-01-18 11:21:08,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:08,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:08,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:08,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:08,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:08,360 INFO L87 Difference]: Start difference. First operand 23627 states and 67708 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:09,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:09,041 INFO L93 Difference]: Finished difference Result 46401 states and 131078 transitions. [2022-01-18 11:21:09,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:21:09,041 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:09,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:09,124 INFO L225 Difference]: With dead ends: 46401 [2022-01-18 11:21:09,124 INFO L226 Difference]: Without dead ends: 46401 [2022-01-18 11:21:09,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:09,124 INFO L933 BasicCegarLoop]: 891 mSDtfsCounter, 1235 mSDsluCounter, 6190 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 7002 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:09,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1235 Valid, 7002 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:09,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46401 states. [2022-01-18 11:21:09,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46401 to 24095. [2022-01-18 11:21:09,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24095 states, 24094 states have (on average 2.8781854403585956) internal successors, (69347), 24094 states have internal predecessors, (69347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:09,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24095 states to 24095 states and 69347 transitions. [2022-01-18 11:21:09,737 INFO L78 Accepts]: Start accepts. Automaton has 24095 states and 69347 transitions. Word has length 263 [2022-01-18 11:21:09,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:09,738 INFO L470 AbstractCegarLoop]: Abstraction has 24095 states and 69347 transitions. [2022-01-18 11:21:09,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:09,738 INFO L276 IsEmpty]: Start isEmpty. Operand 24095 states and 69347 transitions. [2022-01-18 11:21:09,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:09,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:09,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:09,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-18 11:21:09,772 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:09,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:09,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2001773983, now seen corresponding path program 228 times [2022-01-18 11:21:09,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:09,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281534586] [2022-01-18 11:21:09,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:09,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:09,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:09,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:09,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281534586] [2022-01-18 11:21:09,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281534586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:09,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:09,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:09,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228030814] [2022-01-18 11:21:09,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:09,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:09,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:09,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:09,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:09,854 INFO L87 Difference]: Start difference. First operand 24095 states and 69347 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:10,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:10,496 INFO L93 Difference]: Finished difference Result 47317 states and 133817 transitions. [2022-01-18 11:21:10,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:21:10,496 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:10,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:10,577 INFO L225 Difference]: With dead ends: 47317 [2022-01-18 11:21:10,577 INFO L226 Difference]: Without dead ends: 47317 [2022-01-18 11:21:10,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=655, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:21:10,577 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 1238 mSDsluCounter, 5335 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 6194 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:10,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 6194 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:10,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47317 states. [2022-01-18 11:21:11,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47317 to 23755. [2022-01-18 11:21:11,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23755 states, 23754 states have (on average 2.8672223625494655) internal successors, (68108), 23754 states have internal predecessors, (68108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:11,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23755 states to 23755 states and 68108 transitions. [2022-01-18 11:21:11,209 INFO L78 Accepts]: Start accepts. Automaton has 23755 states and 68108 transitions. Word has length 263 [2022-01-18 11:21:11,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:11,209 INFO L470 AbstractCegarLoop]: Abstraction has 23755 states and 68108 transitions. [2022-01-18 11:21:11,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:11,209 INFO L276 IsEmpty]: Start isEmpty. Operand 23755 states and 68108 transitions. [2022-01-18 11:21:11,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:11,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:11,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:11,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-18 11:21:11,243 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:11,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:11,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1307289053, now seen corresponding path program 229 times [2022-01-18 11:21:11,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:11,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298033148] [2022-01-18 11:21:11,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:11,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:11,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:11,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298033148] [2022-01-18 11:21:11,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298033148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:11,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:11,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:11,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219108642] [2022-01-18 11:21:11,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:11,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:11,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:11,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:11,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:11,322 INFO L87 Difference]: Start difference. First operand 23755 states and 68108 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:11,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:11,959 INFO L93 Difference]: Finished difference Result 48125 states and 136027 transitions. [2022-01-18 11:21:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:21:11,959 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:11,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:12,044 INFO L225 Difference]: With dead ends: 48125 [2022-01-18 11:21:12,044 INFO L226 Difference]: Without dead ends: 48125 [2022-01-18 11:21:12,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:21:12,044 INFO L933 BasicCegarLoop]: 913 mSDtfsCounter, 898 mSDsluCounter, 6418 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 7239 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:12,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [898 Valid, 7239 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:12,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48125 states. [2022-01-18 11:21:12,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48125 to 23723. [2022-01-18 11:21:12,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23723 states, 23722 states have (on average 2.8668746311440856) internal successors, (68008), 23722 states have internal predecessors, (68008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23723 states to 23723 states and 68008 transitions. [2022-01-18 11:21:12,579 INFO L78 Accepts]: Start accepts. Automaton has 23723 states and 68008 transitions. Word has length 263 [2022-01-18 11:21:12,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:12,580 INFO L470 AbstractCegarLoop]: Abstraction has 23723 states and 68008 transitions. [2022-01-18 11:21:12,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:12,580 INFO L276 IsEmpty]: Start isEmpty. Operand 23723 states and 68008 transitions. [2022-01-18 11:21:12,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:12,674 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:12,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:12,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-18 11:21:12,674 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:12,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:12,674 INFO L85 PathProgramCache]: Analyzing trace with hash 701895417, now seen corresponding path program 230 times [2022-01-18 11:21:12,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:12,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128825663] [2022-01-18 11:21:12,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:12,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:12,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:12,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:12,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128825663] [2022-01-18 11:21:12,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128825663] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:12,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:12,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:12,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117098442] [2022-01-18 11:21:12,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:12,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:12,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:12,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:12,751 INFO L87 Difference]: Start difference. First operand 23723 states and 68008 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:13,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:13,377 INFO L93 Difference]: Finished difference Result 51925 states and 145960 transitions. [2022-01-18 11:21:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:21:13,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:13,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:13,475 INFO L225 Difference]: With dead ends: 51925 [2022-01-18 11:21:13,475 INFO L226 Difference]: Without dead ends: 51925 [2022-01-18 11:21:13,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:21:13,476 INFO L933 BasicCegarLoop]: 929 mSDtfsCounter, 1039 mSDsluCounter, 5483 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 6329 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:13,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 6329 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:21:13,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51925 states. [2022-01-18 11:21:13,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51925 to 23659. [2022-01-18 11:21:14,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23659 states, 23658 states have (on average 2.8661763462676473) internal successors, (67808), 23658 states have internal predecessors, (67808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:14,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23659 states to 23659 states and 67808 transitions. [2022-01-18 11:21:14,063 INFO L78 Accepts]: Start accepts. Automaton has 23659 states and 67808 transitions. Word has length 263 [2022-01-18 11:21:14,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:14,063 INFO L470 AbstractCegarLoop]: Abstraction has 23659 states and 67808 transitions. [2022-01-18 11:21:14,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:14,064 INFO L276 IsEmpty]: Start isEmpty. Operand 23659 states and 67808 transitions. [2022-01-18 11:21:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:14,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:14,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:14,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-18 11:21:14,094 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:14,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:14,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1654058551, now seen corresponding path program 231 times [2022-01-18 11:21:14,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:14,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036362044] [2022-01-18 11:21:14,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:14,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:14,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:14,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:14,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036362044] [2022-01-18 11:21:14,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036362044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:14,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:14,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:14,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482297181] [2022-01-18 11:21:14,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:14,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:14,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:14,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:14,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:14,170 INFO L87 Difference]: Start difference. First operand 23659 states and 67808 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:14,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:14,664 INFO L93 Difference]: Finished difference Result 32187 states and 90935 transitions. [2022-01-18 11:21:14,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:21:14,665 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:14,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:14,717 INFO L225 Difference]: With dead ends: 32187 [2022-01-18 11:21:14,717 INFO L226 Difference]: Without dead ends: 32187 [2022-01-18 11:21:14,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:21:14,718 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 766 mSDsluCounter, 5138 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 5826 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:14,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 5826 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:21:14,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32187 states. [2022-01-18 11:21:15,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32187 to 23615. [2022-01-18 11:21:15,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23615 states, 23614 states have (on average 2.8658846447022954) internal successors, (67675), 23614 states have internal predecessors, (67675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23615 states to 23615 states and 67675 transitions. [2022-01-18 11:21:15,192 INFO L78 Accepts]: Start accepts. Automaton has 23615 states and 67675 transitions. Word has length 263 [2022-01-18 11:21:15,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:15,192 INFO L470 AbstractCegarLoop]: Abstraction has 23615 states and 67675 transitions. [2022-01-18 11:21:15,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:15,192 INFO L276 IsEmpty]: Start isEmpty. Operand 23615 states and 67675 transitions. [2022-01-18 11:21:15,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:15,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:15,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:15,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-18 11:21:15,223 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:15,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:15,223 INFO L85 PathProgramCache]: Analyzing trace with hash -4162859, now seen corresponding path program 232 times [2022-01-18 11:21:15,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:15,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722702811] [2022-01-18 11:21:15,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:15,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:15,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:15,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:15,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722702811] [2022-01-18 11:21:15,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722702811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:15,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:15,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:15,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114112057] [2022-01-18 11:21:15,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:15,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:15,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:15,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:15,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:15,302 INFO L87 Difference]: Start difference. First operand 23615 states and 67675 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:15,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:15,968 INFO L93 Difference]: Finished difference Result 44996 states and 127148 transitions. [2022-01-18 11:21:15,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:21:15,969 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:15,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:16,057 INFO L225 Difference]: With dead ends: 44996 [2022-01-18 11:21:16,057 INFO L226 Difference]: Without dead ends: 44996 [2022-01-18 11:21:16,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=604, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:21:16,057 INFO L933 BasicCegarLoop]: 884 mSDtfsCounter, 927 mSDsluCounter, 5494 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 6288 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:16,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 6288 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:16,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44996 states. [2022-01-18 11:21:16,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44996 to 23935. [2022-01-18 11:21:16,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23935 states, 23934 states have (on average 2.8763683462856187) internal successors, (68843), 23934 states have internal predecessors, (68843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:16,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23935 states to 23935 states and 68843 transitions. [2022-01-18 11:21:16,578 INFO L78 Accepts]: Start accepts. Automaton has 23935 states and 68843 transitions. Word has length 263 [2022-01-18 11:21:16,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:16,578 INFO L470 AbstractCegarLoop]: Abstraction has 23935 states and 68843 transitions. [2022-01-18 11:21:16,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:16,578 INFO L276 IsEmpty]: Start isEmpty. Operand 23935 states and 68843 transitions. [2022-01-18 11:21:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:16,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:16,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:16,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-18 11:21:16,617 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:16,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash 947806973, now seen corresponding path program 233 times [2022-01-18 11:21:16,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:16,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424809303] [2022-01-18 11:21:16,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:16,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:16,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:16,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:16,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424809303] [2022-01-18 11:21:16,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424809303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:16,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:16,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:16,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835964897] [2022-01-18 11:21:16,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:16,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:16,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:16,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:16,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:16,708 INFO L87 Difference]: Start difference. First operand 23935 states and 68843 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:17,380 INFO L93 Difference]: Finished difference Result 46055 states and 130302 transitions. [2022-01-18 11:21:17,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:21:17,381 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:17,458 INFO L225 Difference]: With dead ends: 46055 [2022-01-18 11:21:17,458 INFO L226 Difference]: Without dead ends: 46055 [2022-01-18 11:21:17,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:21:17,458 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 923 mSDsluCounter, 5774 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 6573 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:17,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [923 Valid, 6573 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:17,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46055 states. [2022-01-18 11:21:17,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46055 to 23607. [2022-01-18 11:21:17,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23607 states, 23606 states have (on average 2.865754469202745) internal successors, (67649), 23606 states have internal predecessors, (67649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:17,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23607 states to 23607 states and 67649 transitions. [2022-01-18 11:21:17,998 INFO L78 Accepts]: Start accepts. Automaton has 23607 states and 67649 transitions. Word has length 263 [2022-01-18 11:21:17,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:17,998 INFO L470 AbstractCegarLoop]: Abstraction has 23607 states and 67649 transitions. [2022-01-18 11:21:17,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:17,999 INFO L276 IsEmpty]: Start isEmpty. Operand 23607 states and 67649 transitions. [2022-01-18 11:21:18,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:18,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:18,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:18,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-18 11:21:18,029 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:18,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:18,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2102717941, now seen corresponding path program 234 times [2022-01-18 11:21:18,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:18,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770593123] [2022-01-18 11:21:18,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:18,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:18,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:18,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:18,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770593123] [2022-01-18 11:21:18,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770593123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:18,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:18,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:18,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934748695] [2022-01-18 11:21:18,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:18,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:18,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:18,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:18,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:18,104 INFO L87 Difference]: Start difference. First operand 23607 states and 67649 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:18,615 INFO L93 Difference]: Finished difference Result 30599 states and 86776 transitions. [2022-01-18 11:21:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:21:18,616 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:18,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:18,669 INFO L225 Difference]: With dead ends: 30599 [2022-01-18 11:21:18,670 INFO L226 Difference]: Without dead ends: 30599 [2022-01-18 11:21:18,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:21:18,670 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 660 mSDsluCounter, 5405 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 6054 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:18,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 6054 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:21:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30599 states. [2022-01-18 11:21:18,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30599 to 23571. [2022-01-18 11:21:19,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23571 states, 23570 states have (on average 2.8654221467967758) internal successors, (67538), 23570 states have internal predecessors, (67538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:19,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23571 states to 23571 states and 67538 transitions. [2022-01-18 11:21:19,070 INFO L78 Accepts]: Start accepts. Automaton has 23571 states and 67538 transitions. Word has length 263 [2022-01-18 11:21:19,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:19,070 INFO L470 AbstractCegarLoop]: Abstraction has 23571 states and 67538 transitions. [2022-01-18 11:21:19,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:19,070 INFO L276 IsEmpty]: Start isEmpty. Operand 23571 states and 67538 transitions. [2022-01-18 11:21:19,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:19,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:19,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:19,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-18 11:21:19,102 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:19,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash 719364693, now seen corresponding path program 235 times [2022-01-18 11:21:19,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:19,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825336475] [2022-01-18 11:21:19,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:19,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:19,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:19,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825336475] [2022-01-18 11:21:19,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825336475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:19,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:19,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:19,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599850371] [2022-01-18 11:21:19,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:19,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:19,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:19,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:19,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:19,182 INFO L87 Difference]: Start difference. First operand 23571 states and 67538 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:19,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:19,901 INFO L93 Difference]: Finished difference Result 45968 states and 129844 transitions. [2022-01-18 11:21:19,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:21:19,901 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:19,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:19,991 INFO L225 Difference]: With dead ends: 45968 [2022-01-18 11:21:19,991 INFO L226 Difference]: Without dead ends: 45968 [2022-01-18 11:21:19,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:21:19,991 INFO L933 BasicCegarLoop]: 932 mSDtfsCounter, 1016 mSDsluCounter, 5869 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 6709 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:19,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 6709 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:20,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45968 states. [2022-01-18 11:21:20,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45968 to 23931. [2022-01-18 11:21:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23931 states, 23930 states have (on average 2.876389469285416) internal successors, (68832), 23930 states have internal predecessors, (68832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:20,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23931 states to 23931 states and 68832 transitions. [2022-01-18 11:21:20,583 INFO L78 Accepts]: Start accepts. Automaton has 23931 states and 68832 transitions. Word has length 263 [2022-01-18 11:21:20,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:20,583 INFO L470 AbstractCegarLoop]: Abstraction has 23931 states and 68832 transitions. [2022-01-18 11:21:20,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:20,584 INFO L276 IsEmpty]: Start isEmpty. Operand 23931 states and 68832 transitions. [2022-01-18 11:21:20,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:20,618 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:20,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:20,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-18 11:21:20,618 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:20,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:20,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1671334525, now seen corresponding path program 236 times [2022-01-18 11:21:20,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:20,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881548521] [2022-01-18 11:21:20,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:20,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:20,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:20,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881548521] [2022-01-18 11:21:20,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881548521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:20,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:20,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:20,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666031083] [2022-01-18 11:21:20,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:20,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:20,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:20,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:20,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:20,704 INFO L87 Difference]: Start difference. First operand 23931 states and 68832 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:21,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:21,353 INFO L93 Difference]: Finished difference Result 46767 states and 132267 transitions. [2022-01-18 11:21:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:21:21,353 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:21,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:21,432 INFO L225 Difference]: With dead ends: 46767 [2022-01-18 11:21:21,432 INFO L226 Difference]: Without dead ends: 46767 [2022-01-18 11:21:21,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:21:21,432 INFO L933 BasicCegarLoop]: 879 mSDtfsCounter, 1028 mSDsluCounter, 5639 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 6460 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:21,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1028 Valid, 6460 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46767 states. [2022-01-18 11:21:21,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46767 to 23603. [2022-01-18 11:21:21,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23603 states, 23602 states have (on average 2.8657740869417845) internal successors, (67638), 23602 states have internal predecessors, (67638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:21,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23603 states to 23603 states and 67638 transitions. [2022-01-18 11:21:21,921 INFO L78 Accepts]: Start accepts. Automaton has 23603 states and 67638 transitions. Word has length 263 [2022-01-18 11:21:21,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:21,921 INFO L470 AbstractCegarLoop]: Abstraction has 23603 states and 67638 transitions. [2022-01-18 11:21:21,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:21,921 INFO L276 IsEmpty]: Start isEmpty. Operand 23603 states and 67638 transitions. [2022-01-18 11:21:21,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:21,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:21,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:21,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-18 11:21:21,958 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:21,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:21,959 INFO L85 PathProgramCache]: Analyzing trace with hash 976849595, now seen corresponding path program 237 times [2022-01-18 11:21:21,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:21,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798148723] [2022-01-18 11:21:21,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:21,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:22,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:22,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:22,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798148723] [2022-01-18 11:21:22,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798148723] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:22,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:22,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:22,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711490617] [2022-01-18 11:21:22,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:22,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:22,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:22,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:22,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:22,037 INFO L87 Difference]: Start difference. First operand 23603 states and 67638 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:22,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:22,602 INFO L93 Difference]: Finished difference Result 31180 states and 88371 transitions. [2022-01-18 11:21:22,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:21:22,602 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:22,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:22,653 INFO L225 Difference]: With dead ends: 31180 [2022-01-18 11:21:22,653 INFO L226 Difference]: Without dead ends: 31180 [2022-01-18 11:21:22,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:21:22,654 INFO L933 BasicCegarLoop]: 830 mSDtfsCounter, 649 mSDsluCounter, 5531 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 6273 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:22,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 6273 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:21:22,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31180 states. [2022-01-18 11:21:23,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31180 to 23567. [2022-01-18 11:21:23,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23567 states, 23566 states have (on average 2.8654417380972586) internal successors, (67527), 23566 states have internal predecessors, (67527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23567 states to 23567 states and 67527 transitions. [2022-01-18 11:21:23,076 INFO L78 Accepts]: Start accepts. Automaton has 23567 states and 67527 transitions. Word has length 263 [2022-01-18 11:21:23,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:23,077 INFO L470 AbstractCegarLoop]: Abstraction has 23567 states and 67527 transitions. [2022-01-18 11:21:23,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 23567 states and 67527 transitions. [2022-01-18 11:21:23,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:23,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:23,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:23,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-18 11:21:23,107 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:23,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:23,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1196884489, now seen corresponding path program 238 times [2022-01-18 11:21:23,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:23,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654843583] [2022-01-18 11:21:23,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:23,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:23,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:23,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:23,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654843583] [2022-01-18 11:21:23,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654843583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:23,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:23,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:23,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573832657] [2022-01-18 11:21:23,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:23,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:23,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:23,190 INFO L87 Difference]: Start difference. First operand 23567 states and 67527 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:24,042 INFO L93 Difference]: Finished difference Result 62518 states and 176387 transitions. [2022-01-18 11:21:24,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:21:24,042 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:24,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:24,165 INFO L225 Difference]: With dead ends: 62518 [2022-01-18 11:21:24,165 INFO L226 Difference]: Without dead ends: 62518 [2022-01-18 11:21:24,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=850, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:21:24,165 INFO L933 BasicCegarLoop]: 1075 mSDtfsCounter, 1316 mSDsluCounter, 6679 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 7649 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:24,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1316 Valid, 7649 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62518 states. [2022-01-18 11:21:24,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62518 to 23999. [2022-01-18 11:21:24,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23999 states, 23998 states have (on average 2.8773647803983664) internal successors, (69051), 23998 states have internal predecessors, (69051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:24,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23999 states to 23999 states and 69051 transitions. [2022-01-18 11:21:24,839 INFO L78 Accepts]: Start accepts. Automaton has 23999 states and 69051 transitions. Word has length 263 [2022-01-18 11:21:24,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:24,839 INFO L470 AbstractCegarLoop]: Abstraction has 23999 states and 69051 transitions. [2022-01-18 11:21:24,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:24,839 INFO L276 IsEmpty]: Start isEmpty. Operand 23999 states and 69051 transitions. [2022-01-18 11:21:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:24,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:24,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:24,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-18 11:21:24,872 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:24,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:24,872 INFO L85 PathProgramCache]: Analyzing trace with hash -244914657, now seen corresponding path program 239 times [2022-01-18 11:21:24,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:24,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901949357] [2022-01-18 11:21:24,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:24,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:24,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:24,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:24,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901949357] [2022-01-18 11:21:24,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901949357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:24,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:24,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:24,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350798289] [2022-01-18 11:21:24,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:24,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:24,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:24,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:24,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:24,954 INFO L87 Difference]: Start difference. First operand 23999 states and 69051 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:25,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:25,778 INFO L93 Difference]: Finished difference Result 63353 states and 178964 transitions. [2022-01-18 11:21:25,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:21:25,779 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:25,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:25,914 INFO L225 Difference]: With dead ends: 63353 [2022-01-18 11:21:25,914 INFO L226 Difference]: Without dead ends: 63353 [2022-01-18 11:21:25,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=639, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:21:25,914 INFO L933 BasicCegarLoop]: 1023 mSDtfsCounter, 1269 mSDsluCounter, 6201 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:25,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1269 Valid, 7156 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:26,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63353 states. [2022-01-18 11:21:26,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63353 to 23663. [2022-01-18 11:21:26,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23663 states, 23662 states have (on average 2.8664948017919025) internal successors, (67827), 23662 states have internal predecessors, (67827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:26,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23663 states to 23663 states and 67827 transitions. [2022-01-18 11:21:26,663 INFO L78 Accepts]: Start accepts. Automaton has 23663 states and 67827 transitions. Word has length 263 [2022-01-18 11:21:26,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:26,663 INFO L470 AbstractCegarLoop]: Abstraction has 23663 states and 67827 transitions. [2022-01-18 11:21:26,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:26,663 INFO L276 IsEmpty]: Start isEmpty. Operand 23663 states and 67827 transitions. [2022-01-18 11:21:26,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:26,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:26,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:26,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-18 11:21:26,693 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:26,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:26,693 INFO L85 PathProgramCache]: Analyzing trace with hash -939399587, now seen corresponding path program 240 times [2022-01-18 11:21:26,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:26,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491700709] [2022-01-18 11:21:26,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:26,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:26,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:26,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:26,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491700709] [2022-01-18 11:21:26,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491700709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:26,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:26,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:26,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625553315] [2022-01-18 11:21:26,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:26,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:26,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:26,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:26,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:26,769 INFO L87 Difference]: Start difference. First operand 23663 states and 67827 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:27,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:27,503 INFO L93 Difference]: Finished difference Result 48222 states and 136279 transitions. [2022-01-18 11:21:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:21:27,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:27,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:27,583 INFO L225 Difference]: With dead ends: 48222 [2022-01-18 11:21:27,583 INFO L226 Difference]: Without dead ends: 48222 [2022-01-18 11:21:27,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:21:27,584 INFO L933 BasicCegarLoop]: 1002 mSDtfsCounter, 892 mSDsluCounter, 6914 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 7803 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:27,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [892 Valid, 7803 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:27,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48222 states. [2022-01-18 11:21:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48222 to 23631. [2022-01-18 11:21:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23631 states, 23630 states have (on average 2.8661447312738044) internal successors, (67727), 23630 states have internal predecessors, (67727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:28,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23631 states to 23631 states and 67727 transitions. [2022-01-18 11:21:28,074 INFO L78 Accepts]: Start accepts. Automaton has 23631 states and 67727 transitions. Word has length 263 [2022-01-18 11:21:28,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:28,074 INFO L470 AbstractCegarLoop]: Abstraction has 23631 states and 67727 transitions. [2022-01-18 11:21:28,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:28,074 INFO L276 IsEmpty]: Start isEmpty. Operand 23631 states and 67727 transitions. [2022-01-18 11:21:28,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:28,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:28,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:28,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-18 11:21:28,105 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:28,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:28,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1544793223, now seen corresponding path program 241 times [2022-01-18 11:21:28,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:28,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093784420] [2022-01-18 11:21:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:28,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:28,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:28,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093784420] [2022-01-18 11:21:28,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093784420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:28,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:28,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:28,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441629994] [2022-01-18 11:21:28,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:28,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:28,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:28,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:28,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:28,182 INFO L87 Difference]: Start difference. First operand 23631 states and 67727 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:28,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:28,945 INFO L93 Difference]: Finished difference Result 51076 states and 143599 transitions. [2022-01-18 11:21:28,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:21:28,946 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:28,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:29,044 INFO L225 Difference]: With dead ends: 51076 [2022-01-18 11:21:29,044 INFO L226 Difference]: Without dead ends: 51076 [2022-01-18 11:21:29,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:21:29,044 INFO L933 BasicCegarLoop]: 1016 mSDtfsCounter, 976 mSDsluCounter, 6034 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 6941 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:29,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 6941 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51076 states. [2022-01-18 11:21:29,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51076 to 23559. [2022-01-18 11:21:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23559 states, 23558 states have (on average 2.865480940657102) internal successors, (67505), 23558 states have internal predecessors, (67505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:29,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23559 states to 23559 states and 67505 transitions. [2022-01-18 11:21:29,653 INFO L78 Accepts]: Start accepts. Automaton has 23559 states and 67505 transitions. Word has length 263 [2022-01-18 11:21:29,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:29,654 INFO L470 AbstractCegarLoop]: Abstraction has 23559 states and 67505 transitions. [2022-01-18 11:21:29,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:29,654 INFO L276 IsEmpty]: Start isEmpty. Operand 23559 states and 67505 transitions. [2022-01-18 11:21:29,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:29,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:29,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:29,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-18 11:21:29,684 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:29,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:29,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1120827367, now seen corresponding path program 242 times [2022-01-18 11:21:29,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:29,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3496052] [2022-01-18 11:21:29,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:29,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:29,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:29,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3496052] [2022-01-18 11:21:29,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3496052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:29,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:29,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:29,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49197206] [2022-01-18 11:21:29,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:29,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:29,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:29,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:29,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:29,763 INFO L87 Difference]: Start difference. First operand 23559 states and 67505 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:30,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:30,439 INFO L93 Difference]: Finished difference Result 45926 states and 129770 transitions. [2022-01-18 11:21:30,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:21:30,439 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:30,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:30,520 INFO L225 Difference]: With dead ends: 45926 [2022-01-18 11:21:30,520 INFO L226 Difference]: Without dead ends: 45926 [2022-01-18 11:21:30,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:21:30,521 INFO L933 BasicCegarLoop]: 960 mSDtfsCounter, 1307 mSDsluCounter, 5626 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 6510 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:30,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1307 Valid, 6510 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:30,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45926 states. [2022-01-18 11:21:31,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45926 to 24027. [2022-01-18 11:21:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24027 states, 24026 states have (on average 2.8778822941813034) internal successors, (69144), 24026 states have internal predecessors, (69144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24027 states to 24027 states and 69144 transitions. [2022-01-18 11:21:31,074 INFO L78 Accepts]: Start accepts. Automaton has 24027 states and 69144 transitions. Word has length 263 [2022-01-18 11:21:31,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:31,075 INFO L470 AbstractCegarLoop]: Abstraction has 24027 states and 69144 transitions. [2022-01-18 11:21:31,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 24027 states and 69144 transitions. [2022-01-18 11:21:31,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:31,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:31,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:31,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-18 11:21:31,106 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:31,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:31,106 INFO L85 PathProgramCache]: Analyzing trace with hash -168857535, now seen corresponding path program 243 times [2022-01-18 11:21:31,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:31,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388938424] [2022-01-18 11:21:31,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:31,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:31,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:31,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:31,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388938424] [2022-01-18 11:21:31,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388938424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:31,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:31,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:31,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324920886] [2022-01-18 11:21:31,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:31,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:31,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:31,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:31,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:31,190 INFO L87 Difference]: Start difference. First operand 24027 states and 69144 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:31,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:31,953 INFO L93 Difference]: Finished difference Result 46905 states and 132676 transitions. [2022-01-18 11:21:31,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:21:31,953 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:31,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:32,046 INFO L225 Difference]: With dead ends: 46905 [2022-01-18 11:21:32,046 INFO L226 Difference]: Without dead ends: 46905 [2022-01-18 11:21:32,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:21:32,047 INFO L933 BasicCegarLoop]: 955 mSDtfsCounter, 1353 mSDsluCounter, 5697 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 6601 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:32,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1353 Valid, 6601 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:32,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46905 states. [2022-01-18 11:21:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46905 to 23687. [2022-01-18 11:21:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23687 states, 23686 states have (on average 2.8668833910326774) internal successors, (67905), 23686 states have internal predecessors, (67905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:32,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23687 states to 23687 states and 67905 transitions. [2022-01-18 11:21:32,653 INFO L78 Accepts]: Start accepts. Automaton has 23687 states and 67905 transitions. Word has length 263 [2022-01-18 11:21:32,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:32,653 INFO L470 AbstractCegarLoop]: Abstraction has 23687 states and 67905 transitions. [2022-01-18 11:21:32,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:32,653 INFO L276 IsEmpty]: Start isEmpty. Operand 23687 states and 67905 transitions. [2022-01-18 11:21:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:32,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:32,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:32,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-18 11:21:32,684 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:32,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:32,685 INFO L85 PathProgramCache]: Analyzing trace with hash -863342465, now seen corresponding path program 244 times [2022-01-18 11:21:32,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:32,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950164156] [2022-01-18 11:21:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:32,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:32,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:32,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950164156] [2022-01-18 11:21:32,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950164156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:32,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:32,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:32,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719671881] [2022-01-18 11:21:32,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:32,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:32,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:32,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:32,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:32,763 INFO L87 Difference]: Start difference. First operand 23687 states and 67905 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:33,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:33,453 INFO L93 Difference]: Finished difference Result 47650 states and 134719 transitions. [2022-01-18 11:21:33,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:21:33,454 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:33,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:33,541 INFO L225 Difference]: With dead ends: 47650 [2022-01-18 11:21:33,541 INFO L226 Difference]: Without dead ends: 47650 [2022-01-18 11:21:33,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:21:33,541 INFO L933 BasicCegarLoop]: 982 mSDtfsCounter, 913 mSDsluCounter, 6187 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 7074 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:33,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [913 Valid, 7074 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:33,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47650 states. [2022-01-18 11:21:33,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47650 to 23655. [2022-01-18 11:21:34,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23655 states, 23654 states have (on average 2.866534201403568) internal successors, (67805), 23654 states have internal predecessors, (67805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:34,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23655 states to 23655 states and 67805 transitions. [2022-01-18 11:21:34,060 INFO L78 Accepts]: Start accepts. Automaton has 23655 states and 67805 transitions. Word has length 263 [2022-01-18 11:21:34,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:34,061 INFO L470 AbstractCegarLoop]: Abstraction has 23655 states and 67805 transitions. [2022-01-18 11:21:34,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:34,061 INFO L276 IsEmpty]: Start isEmpty. Operand 23655 states and 67805 transitions. [2022-01-18 11:21:34,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:34,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:34,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:34,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-18 11:21:34,094 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:34,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:34,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1468736101, now seen corresponding path program 245 times [2022-01-18 11:21:34,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:34,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839581764] [2022-01-18 11:21:34,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:34,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:34,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:34,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839581764] [2022-01-18 11:21:34,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839581764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:34,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:34,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:34,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777720046] [2022-01-18 11:21:34,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:34,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:34,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:34,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:34,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:34,171 INFO L87 Difference]: Start difference. First operand 23655 states and 67805 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:34,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:34,955 INFO L93 Difference]: Finished difference Result 51450 states and 144652 transitions. [2022-01-18 11:21:34,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:21:34,955 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:34,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:35,059 INFO L225 Difference]: With dead ends: 51450 [2022-01-18 11:21:35,059 INFO L226 Difference]: Without dead ends: 51450 [2022-01-18 11:21:35,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:21:35,060 INFO L933 BasicCegarLoop]: 998 mSDtfsCounter, 1018 mSDsluCounter, 6955 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 7841 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:35,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1018 Valid, 7841 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:35,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51450 states. [2022-01-18 11:21:35,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51450 to 23591. [2022-01-18 11:21:35,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23591 states, 23590 states have (on average 2.8658329800763034) internal successors, (67605), 23590 states have internal predecessors, (67605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:35,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23591 states to 23591 states and 67605 transitions. [2022-01-18 11:21:35,721 INFO L78 Accepts]: Start accepts. Automaton has 23591 states and 67605 transitions. Word has length 263 [2022-01-18 11:21:35,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:35,722 INFO L470 AbstractCegarLoop]: Abstraction has 23591 states and 67605 transitions. [2022-01-18 11:21:35,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:35,722 INFO L276 IsEmpty]: Start isEmpty. Operand 23591 states and 67605 transitions. [2022-01-18 11:21:35,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:35,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:35,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:35,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-18 11:21:35,757 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:35,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:35,758 INFO L85 PathProgramCache]: Analyzing trace with hash -516572967, now seen corresponding path program 246 times [2022-01-18 11:21:35,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:35,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213462290] [2022-01-18 11:21:35,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:35,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:35,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:35,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213462290] [2022-01-18 11:21:35,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213462290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:35,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:35,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:35,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113519957] [2022-01-18 11:21:35,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:35,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:35,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:35,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:35,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:35,834 INFO L87 Difference]: Start difference. First operand 23591 states and 67605 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:36,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:36,330 INFO L93 Difference]: Finished difference Result 31712 states and 89627 transitions. [2022-01-18 11:21:36,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:21:36,331 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:36,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:36,385 INFO L225 Difference]: With dead ends: 31712 [2022-01-18 11:21:36,386 INFO L226 Difference]: Without dead ends: 31712 [2022-01-18 11:21:36,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:21:36,386 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 712 mSDsluCounter, 5237 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 5985 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:36,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 5985 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:21:36,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31712 states. [2022-01-18 11:21:36,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31712 to 23555. [2022-01-18 11:21:36,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23555 states, 23554 states have (on average 2.8655005519232404) internal successors, (67494), 23554 states have internal predecessors, (67494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:36,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23555 states to 23555 states and 67494 transitions. [2022-01-18 11:21:36,768 INFO L78 Accepts]: Start accepts. Automaton has 23555 states and 67494 transitions. Word has length 263 [2022-01-18 11:21:36,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:36,769 INFO L470 AbstractCegarLoop]: Abstraction has 23555 states and 67494 transitions. [2022-01-18 11:21:36,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:36,769 INFO L276 IsEmpty]: Start isEmpty. Operand 23555 states and 67494 transitions. [2022-01-18 11:21:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:36,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:36,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:36,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-18 11:21:36,800 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:36,800 INFO L85 PathProgramCache]: Analyzing trace with hash 23983633, now seen corresponding path program 247 times [2022-01-18 11:21:36,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:36,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411961155] [2022-01-18 11:21:36,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:36,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:36,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:36,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:36,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411961155] [2022-01-18 11:21:36,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411961155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:36,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:36,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:36,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642019085] [2022-01-18 11:21:36,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:36,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:36,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:36,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:36,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:36,882 INFO L87 Difference]: Start difference. First operand 23555 states and 67494 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:37,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:37,636 INFO L93 Difference]: Finished difference Result 44316 states and 124741 transitions. [2022-01-18 11:21:37,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:21:37,637 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:37,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:37,712 INFO L225 Difference]: With dead ends: 44316 [2022-01-18 11:21:37,712 INFO L226 Difference]: Without dead ends: 44316 [2022-01-18 11:21:37,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=223, Invalid=899, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:21:37,713 INFO L933 BasicCegarLoop]: 1029 mSDtfsCounter, 1634 mSDsluCounter, 5593 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 6538 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:37,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1634 Valid, 6538 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:37,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44316 states. [2022-01-18 11:21:38,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44316 to 23519. [2022-01-18 11:21:38,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23519 states, 23518 states have (on average 2.864997023556425) internal successors, (67379), 23518 states have internal predecessors, (67379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:38,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23519 states to 23519 states and 67379 transitions. [2022-01-18 11:21:38,239 INFO L78 Accepts]: Start accepts. Automaton has 23519 states and 67379 transitions. Word has length 263 [2022-01-18 11:21:38,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:38,239 INFO L470 AbstractCegarLoop]: Abstraction has 23519 states and 67379 transitions. [2022-01-18 11:21:38,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:38,239 INFO L276 IsEmpty]: Start isEmpty. Operand 23519 states and 67379 transitions. [2022-01-18 11:21:38,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:38,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:38,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:38,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-18 11:21:38,270 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:38,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:38,270 INFO L85 PathProgramCache]: Analyzing trace with hash 975953465, now seen corresponding path program 248 times [2022-01-18 11:21:38,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:38,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933855055] [2022-01-18 11:21:38,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:38,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:38,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:38,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:38,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933855055] [2022-01-18 11:21:38,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933855055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:38,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:38,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:38,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15680818] [2022-01-18 11:21:38,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:38,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:38,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:38,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:38,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:38,353 INFO L87 Difference]: Start difference. First operand 23519 states and 67379 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:39,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:39,144 INFO L93 Difference]: Finished difference Result 45085 states and 127075 transitions. [2022-01-18 11:21:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:21:39,144 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:39,233 INFO L225 Difference]: With dead ends: 45085 [2022-01-18 11:21:39,233 INFO L226 Difference]: Without dead ends: 45085 [2022-01-18 11:21:39,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=827, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:21:39,234 INFO L933 BasicCegarLoop]: 1005 mSDtfsCounter, 1591 mSDsluCounter, 6158 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 7101 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:39,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 7101 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:39,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45085 states. [2022-01-18 11:21:39,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45085 to 23151. [2022-01-18 11:21:39,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23151 states, 23150 states have (on average 2.8523110151187905) internal successors, (66031), 23150 states have internal predecessors, (66031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:39,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23151 states to 23151 states and 66031 transitions. [2022-01-18 11:21:39,733 INFO L78 Accepts]: Start accepts. Automaton has 23151 states and 66031 transitions. Word has length 263 [2022-01-18 11:21:39,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:39,733 INFO L470 AbstractCegarLoop]: Abstraction has 23151 states and 66031 transitions. [2022-01-18 11:21:39,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 23151 states and 66031 transitions. [2022-01-18 11:21:39,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:39,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:39,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:39,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-18 11:21:39,763 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:39,764 INFO L85 PathProgramCache]: Analyzing trace with hash 281468535, now seen corresponding path program 249 times [2022-01-18 11:21:39,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:39,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453134592] [2022-01-18 11:21:39,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:39,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:39,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:39,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:39,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453134592] [2022-01-18 11:21:39,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453134592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:39,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:39,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:39,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361203568] [2022-01-18 11:21:39,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:39,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:39,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:39,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:39,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:39,844 INFO L87 Difference]: Start difference. First operand 23151 states and 66031 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:40,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:40,632 INFO L93 Difference]: Finished difference Result 46100 states and 129851 transitions. [2022-01-18 11:21:40,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:21:40,632 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:40,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:40,711 INFO L225 Difference]: With dead ends: 46100 [2022-01-18 11:21:40,711 INFO L226 Difference]: Without dead ends: 46100 [2022-01-18 11:21:40,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=748, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:21:40,711 INFO L933 BasicCegarLoop]: 1050 mSDtfsCounter, 1097 mSDsluCounter, 7175 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 8105 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:40,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1097 Valid, 8105 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:40,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46100 states. [2022-01-18 11:21:41,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46100 to 23119. [2022-01-18 11:21:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23119 states, 23118 states have (on average 2.851933558266286) internal successors, (65931), 23118 states have internal predecessors, (65931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23119 states to 23119 states and 65931 transitions. [2022-01-18 11:21:41,182 INFO L78 Accepts]: Start accepts. Automaton has 23119 states and 65931 transitions. Word has length 263 [2022-01-18 11:21:41,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:41,183 INFO L470 AbstractCegarLoop]: Abstraction has 23119 states and 65931 transitions. [2022-01-18 11:21:41,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:41,183 INFO L276 IsEmpty]: Start isEmpty. Operand 23119 states and 65931 transitions. [2022-01-18 11:21:41,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:41,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:41,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:41,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-18 11:21:41,214 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:41,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:41,214 INFO L85 PathProgramCache]: Analyzing trace with hash -323925101, now seen corresponding path program 250 times [2022-01-18 11:21:41,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:41,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175975045] [2022-01-18 11:21:41,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:41,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:41,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:41,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:41,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175975045] [2022-01-18 11:21:41,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175975045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:41,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:41,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:41,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615986813] [2022-01-18 11:21:41,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:41,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:41,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:41,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:41,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:41,294 INFO L87 Difference]: Start difference. First operand 23119 states and 65931 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:42,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:42,104 INFO L93 Difference]: Finished difference Result 49900 states and 139784 transitions. [2022-01-18 11:21:42,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:21:42,105 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:42,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:42,208 INFO L225 Difference]: With dead ends: 49900 [2022-01-18 11:21:42,208 INFO L226 Difference]: Without dead ends: 49900 [2022-01-18 11:21:42,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2022-01-18 11:21:42,209 INFO L933 BasicCegarLoop]: 1066 mSDtfsCounter, 1316 mSDsluCounter, 6564 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 7516 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:42,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1316 Valid, 7516 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49900 states. [2022-01-18 11:21:42,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49900 to 23055. [2022-01-18 11:21:42,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23055 states, 23054 states have (on average 2.8511755009976576) internal successors, (65731), 23054 states have internal predecessors, (65731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:42,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23055 states to 23055 states and 65731 transitions. [2022-01-18 11:21:42,746 INFO L78 Accepts]: Start accepts. Automaton has 23055 states and 65731 transitions. Word has length 263 [2022-01-18 11:21:42,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:42,746 INFO L470 AbstractCegarLoop]: Abstraction has 23055 states and 65731 transitions. [2022-01-18 11:21:42,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:42,746 INFO L276 IsEmpty]: Start isEmpty. Operand 23055 states and 65731 transitions. [2022-01-18 11:21:42,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:42,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:42,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:42,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-18 11:21:42,778 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:42,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:42,778 INFO L85 PathProgramCache]: Analyzing trace with hash 628238033, now seen corresponding path program 251 times [2022-01-18 11:21:42,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:42,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374749676] [2022-01-18 11:21:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:42,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:42,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:42,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:42,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374749676] [2022-01-18 11:21:42,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374749676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:42,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:42,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:42,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357239956] [2022-01-18 11:21:42,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:42,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:42,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:42,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:42,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:42,852 INFO L87 Difference]: Start difference. First operand 23055 states and 65731 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:43,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:43,432 INFO L93 Difference]: Finished difference Result 30542 states and 85820 transitions. [2022-01-18 11:21:43,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:21:43,433 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:43,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:43,484 INFO L225 Difference]: With dead ends: 30542 [2022-01-18 11:21:43,485 INFO L226 Difference]: Without dead ends: 30542 [2022-01-18 11:21:43,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:21:43,485 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 840 mSDsluCounter, 6074 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 6869 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:43,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [840 Valid, 6869 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:21:43,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30542 states. [2022-01-18 11:21:43,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30542 to 23023. [2022-01-18 11:21:43,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23023 states, 23022 states have (on average 2.850794891842585) internal successors, (65631), 23022 states have internal predecessors, (65631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:43,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23023 states to 23023 states and 65631 transitions. [2022-01-18 11:21:43,933 INFO L78 Accepts]: Start accepts. Automaton has 23023 states and 65631 transitions. Word has length 263 [2022-01-18 11:21:43,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:43,933 INFO L470 AbstractCegarLoop]: Abstraction has 23023 states and 65631 transitions. [2022-01-18 11:21:43,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:43,933 INFO L276 IsEmpty]: Start isEmpty. Operand 23023 states and 65631 transitions. [2022-01-18 11:21:43,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 11:21:43,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:43,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:43,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-01-18 11:21:43,964 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:43,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:43,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2052365337, now seen corresponding path program 252 times [2022-01-18 11:21:43,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:43,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121081894] [2022-01-18 11:21:43,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:43,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:44,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:44,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:44,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121081894] [2022-01-18 11:21:44,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121081894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:44,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:44,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:21:44,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612833337] [2022-01-18 11:21:44,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:44,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:21:44,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:44,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:21:44,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:44,040 INFO L87 Difference]: Start difference. First operand 23023 states and 65631 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:44,659 INFO L93 Difference]: Finished difference Result 33836 states and 94490 transitions. [2022-01-18 11:21:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:21:44,660 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-01-18 11:21:44,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:44,722 INFO L225 Difference]: With dead ends: 33836 [2022-01-18 11:21:44,722 INFO L226 Difference]: Without dead ends: 33836 [2022-01-18 11:21:44,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=560, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:21:44,722 INFO L933 BasicCegarLoop]: 895 mSDtfsCounter, 1113 mSDsluCounter, 5601 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 6392 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:44,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 6392 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:21:44,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33836 states. [2022-01-18 11:21:45,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33836 to 23027. [2022-01-18 11:21:45,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23027 states, 23026 states have (on average 2.850082515417354) internal successors, (65626), 23026 states have internal predecessors, (65626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:45,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23027 states to 23027 states and 65626 transitions. [2022-01-18 11:21:45,158 INFO L78 Accepts]: Start accepts. Automaton has 23027 states and 65626 transitions. Word has length 263 [2022-01-18 11:21:45,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:45,158 INFO L470 AbstractCegarLoop]: Abstraction has 23027 states and 65626 transitions. [2022-01-18 11:21:45,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 23027 states and 65626 transitions. [2022-01-18 11:21:45,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-01-18 11:21:45,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:45,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:45,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-18 11:21:45,189 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:45,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:45,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1974415561, now seen corresponding path program 1 times [2022-01-18 11:21:45,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:45,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086970589] [2022-01-18 11:21:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:45,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:45,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:45,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086970589] [2022-01-18 11:21:45,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086970589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:45,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:45,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 11:21:45,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252943619] [2022-01-18 11:21:45,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:45,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 11:21:45,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:45,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 11:21:45,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 11:21:45,234 INFO L87 Difference]: Start difference. First operand 23027 states and 65626 transitions. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:45,375 INFO L93 Difference]: Finished difference Result 26578 states and 75129 transitions. [2022-01-18 11:21:45,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:21:45,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2022-01-18 11:21:45,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:45,428 INFO L225 Difference]: With dead ends: 26578 [2022-01-18 11:21:45,428 INFO L226 Difference]: Without dead ends: 26578 [2022-01-18 11:21:45,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:45,429 INFO L933 BasicCegarLoop]: 656 mSDtfsCounter, 510 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:45,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 2756 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:21:45,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26578 states. [2022-01-18 11:21:45,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26578 to 26558. [2022-01-18 11:21:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26558 states, 26557 states have (on average 2.828180893926272) internal successors, (75108), 26557 states have internal predecessors, (75108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:45,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26558 states to 26558 states and 75108 transitions. [2022-01-18 11:21:45,962 INFO L78 Accepts]: Start accepts. Automaton has 26558 states and 75108 transitions. Word has length 265 [2022-01-18 11:21:45,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:45,963 INFO L470 AbstractCegarLoop]: Abstraction has 26558 states and 75108 transitions. [2022-01-18 11:21:45,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:45,963 INFO L276 IsEmpty]: Start isEmpty. Operand 26558 states and 75108 transitions. [2022-01-18 11:21:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-01-18 11:21:46,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:46,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:46,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-18 11:21:46,005 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:46,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:46,005 INFO L85 PathProgramCache]: Analyzing trace with hash -619040247, now seen corresponding path program 1 times [2022-01-18 11:21:46,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:46,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989476488] [2022-01-18 11:21:46,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:46,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:46,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:46,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989476488] [2022-01-18 11:21:46,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989476488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:46,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:46,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 11:21:46,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329737052] [2022-01-18 11:21:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:46,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 11:21:46,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:46,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 11:21:46,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 11:21:46,041 INFO L87 Difference]: Start difference. First operand 26558 states and 75108 transitions. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:46,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:46,190 INFO L93 Difference]: Finished difference Result 29746 states and 83712 transitions. [2022-01-18 11:21:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:21:46,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2022-01-18 11:21:46,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:46,244 INFO L225 Difference]: With dead ends: 29746 [2022-01-18 11:21:46,244 INFO L226 Difference]: Without dead ends: 29746 [2022-01-18 11:21:46,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:46,245 INFO L933 BasicCegarLoop]: 639 mSDtfsCounter, 411 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 2697 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:46,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 2697 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:21:46,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29746 states. [2022-01-18 11:21:46,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29746 to 29732. [2022-01-18 11:21:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29732 states, 29731 states have (on average 2.8152097137667753) internal successors, (83699), 29731 states have internal predecessors, (83699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29732 states to 29732 states and 83699 transitions. [2022-01-18 11:21:46,683 INFO L78 Accepts]: Start accepts. Automaton has 29732 states and 83699 transitions. Word has length 265 [2022-01-18 11:21:46,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:46,683 INFO L470 AbstractCegarLoop]: Abstraction has 29732 states and 83699 transitions. [2022-01-18 11:21:46,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:46,683 INFO L276 IsEmpty]: Start isEmpty. Operand 29732 states and 83699 transitions. [2022-01-18 11:21:46,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-01-18 11:21:46,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:46,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:46,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-18 11:21:46,727 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:46,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:46,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1283320361, now seen corresponding path program 1 times [2022-01-18 11:21:46,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:46,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879294942] [2022-01-18 11:21:46,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:46,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:46,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:46,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879294942] [2022-01-18 11:21:46,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879294942] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:46,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:46,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 11:21:46,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842782215] [2022-01-18 11:21:46,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:46,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 11:21:46,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:46,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 11:21:46,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 11:21:46,773 INFO L87 Difference]: Start difference. First operand 29732 states and 83699 transitions. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:46,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:46,943 INFO L93 Difference]: Finished difference Result 34322 states and 96098 transitions. [2022-01-18 11:21:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:21:46,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2022-01-18 11:21:46,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:47,007 INFO L225 Difference]: With dead ends: 34322 [2022-01-18 11:21:47,007 INFO L226 Difference]: Without dead ends: 34322 [2022-01-18 11:21:47,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:47,008 INFO L933 BasicCegarLoop]: 654 mSDtfsCounter, 465 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:47,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 2710 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:21:47,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34322 states. [2022-01-18 11:21:47,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34322 to 34308. [2022-01-18 11:21:47,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34308 states, 34307 states have (on average 2.8007403736846705) internal successors, (96085), 34307 states have internal predecessors, (96085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:47,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34308 states to 34308 states and 96085 transitions. [2022-01-18 11:21:47,529 INFO L78 Accepts]: Start accepts. Automaton has 34308 states and 96085 transitions. Word has length 265 [2022-01-18 11:21:47,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:47,529 INFO L470 AbstractCegarLoop]: Abstraction has 34308 states and 96085 transitions. [2022-01-18 11:21:47,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 34308 states and 96085 transitions. [2022-01-18 11:21:47,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-01-18 11:21:47,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:47,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:47,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-18 11:21:47,578 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:47,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:47,578 INFO L85 PathProgramCache]: Analyzing trace with hash -111189671, now seen corresponding path program 1 times [2022-01-18 11:21:47,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:47,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175087082] [2022-01-18 11:21:47,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:47,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:47,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:47,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:47,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175087082] [2022-01-18 11:21:47,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175087082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:47,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:47,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 11:21:47,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395091931] [2022-01-18 11:21:47,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:47,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 11:21:47,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:47,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 11:21:47,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 11:21:47,620 INFO L87 Difference]: Start difference. First operand 34308 states and 96085 transitions. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:47,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:47,811 INFO L93 Difference]: Finished difference Result 39968 states and 111096 transitions. [2022-01-18 11:21:47,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:21:47,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2022-01-18 11:21:47,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:47,879 INFO L225 Difference]: With dead ends: 39968 [2022-01-18 11:21:47,879 INFO L226 Difference]: Without dead ends: 39968 [2022-01-18 11:21:47,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:47,879 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 534 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:47,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 2771 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:21:47,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39968 states. [2022-01-18 11:21:48,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39968 to 39940. [2022-01-18 11:21:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39940 states, 39939 states have (on average 2.7809158967425325) internal successors, (111067), 39939 states have internal predecessors, (111067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:48,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39940 states to 39940 states and 111067 transitions. [2022-01-18 11:21:48,462 INFO L78 Accepts]: Start accepts. Automaton has 39940 states and 111067 transitions. Word has length 265 [2022-01-18 11:21:48,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:48,462 INFO L470 AbstractCegarLoop]: Abstraction has 39940 states and 111067 transitions. [2022-01-18 11:21:48,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:48,462 INFO L276 IsEmpty]: Start isEmpty. Operand 39940 states and 111067 transitions. [2022-01-18 11:21:48,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-01-18 11:21:48,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:48,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:48,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-01-18 11:21:48,522 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:48,522 INFO L85 PathProgramCache]: Analyzing trace with hash -311676986, now seen corresponding path program 1 times [2022-01-18 11:21:48,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:48,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388824037] [2022-01-18 11:21:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:48,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:48,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:48,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:48,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388824037] [2022-01-18 11:21:48,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388824037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:48,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:48,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:21:48,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175328820] [2022-01-18 11:21:48,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:48,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:21:48,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:48,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:21:48,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:21:48,594 INFO L87 Difference]: Start difference. First operand 39940 states and 111067 transitions. Second operand has 8 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:48,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:48,774 INFO L93 Difference]: Finished difference Result 39946 states and 111073 transitions. [2022-01-18 11:21:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:21:48,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 267 [2022-01-18 11:21:48,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:48,838 INFO L225 Difference]: With dead ends: 39946 [2022-01-18 11:21:48,838 INFO L226 Difference]: Without dead ends: 39946 [2022-01-18 11:21:48,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=59, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:48,838 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 455 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:48,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 1291 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:21:48,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39946 states. [2022-01-18 11:21:49,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39946 to 39941. [2022-01-18 11:21:49,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39941 states, 39940 states have (on average 2.7808713069604405) internal successors, (111068), 39940 states have internal predecessors, (111068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39941 states to 39941 states and 111068 transitions. [2022-01-18 11:21:49,384 INFO L78 Accepts]: Start accepts. Automaton has 39941 states and 111068 transitions. Word has length 267 [2022-01-18 11:21:49,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:49,384 INFO L470 AbstractCegarLoop]: Abstraction has 39941 states and 111068 transitions. [2022-01-18 11:21:49,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:49,384 INFO L276 IsEmpty]: Start isEmpty. Operand 39941 states and 111068 transitions. [2022-01-18 11:21:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-01-18 11:21:49,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:49,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:49,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-01-18 11:21:49,437 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:49,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:49,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1529788525, now seen corresponding path program 1 times [2022-01-18 11:21:49,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:49,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413984615] [2022-01-18 11:21:49,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:49,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:49,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:49,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413984615] [2022-01-18 11:21:49,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413984615] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:21:49,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60388884] [2022-01-18 11:21:49,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:49,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:21:49,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:21:49,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:21:49,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 11:21:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:49,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 11:21:49,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:21:50,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:50,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:21:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:50,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60388884] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 11:21:50,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 11:21:50,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 16 [2022-01-18 11:21:50,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454076549] [2022-01-18 11:21:50,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:50,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:21:50,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:50,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:21:50,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-01-18 11:21:50,616 INFO L87 Difference]: Start difference. First operand 39941 states and 111068 transitions. Second operand has 9 states, 9 states have (on average 30.444444444444443) internal successors, (274), 9 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:50,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:50,837 INFO L93 Difference]: Finished difference Result 39942 states and 111069 transitions. [2022-01-18 11:21:50,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 11:21:50,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 30.444444444444443) internal successors, (274), 9 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2022-01-18 11:21:50,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:50,902 INFO L225 Difference]: With dead ends: 39942 [2022-01-18 11:21:50,902 INFO L226 Difference]: Without dead ends: 39942 [2022-01-18 11:21:50,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 540 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:21:50,902 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 708 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:50,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [708 Valid, 1468 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:21:50,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39942 states. [2022-01-18 11:21:51,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39942 to 39942. [2022-01-18 11:21:51,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39942 states, 39941 states have (on average 2.7808267194111314) internal successors, (111069), 39941 states have internal predecessors, (111069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:51,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39942 states to 39942 states and 111069 transitions. [2022-01-18 11:21:51,625 INFO L78 Accepts]: Start accepts. Automaton has 39942 states and 111069 transitions. Word has length 274 [2022-01-18 11:21:51,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:51,625 INFO L470 AbstractCegarLoop]: Abstraction has 39942 states and 111069 transitions. [2022-01-18 11:21:51,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 30.444444444444443) internal successors, (274), 9 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:51,626 INFO L276 IsEmpty]: Start isEmpty. Operand 39942 states and 111069 transitions. [2022-01-18 11:21:51,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-01-18 11:21:51,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:51,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:51,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-18 11:21:51,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable260 [2022-01-18 11:21:51,880 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:51,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1744644380, now seen corresponding path program 1 times [2022-01-18 11:21:51,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:51,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609662814] [2022-01-18 11:21:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:51,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:21:51,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:51,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609662814] [2022-01-18 11:21:51,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609662814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:51,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:51,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:21:51,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37266839] [2022-01-18 11:21:51,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:51,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:21:51,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:51,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:21:51,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:21:51,974 INFO L87 Difference]: Start difference. First operand 39942 states and 111069 transitions. Second operand has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:52,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:52,145 INFO L93 Difference]: Finished difference Result 39948 states and 111075 transitions. [2022-01-18 11:21:52,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:21:52,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2022-01-18 11:21:52,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:52,218 INFO L225 Difference]: With dead ends: 39948 [2022-01-18 11:21:52,218 INFO L226 Difference]: Without dead ends: 39948 [2022-01-18 11:21:52,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:21:52,218 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 942 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:52,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 810 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:21:52,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39948 states. [2022-01-18 11:21:52,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39948 to 39943. [2022-01-18 11:21:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39943 states, 39942 states have (on average 2.7807821340944368) internal successors, (111070), 39942 states have internal predecessors, (111070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39943 states to 39943 states and 111070 transitions. [2022-01-18 11:21:52,835 INFO L78 Accepts]: Start accepts. Automaton has 39943 states and 111070 transitions. Word has length 280 [2022-01-18 11:21:52,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:52,835 INFO L470 AbstractCegarLoop]: Abstraction has 39943 states and 111070 transitions. [2022-01-18 11:21:52,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:52,835 INFO L276 IsEmpty]: Start isEmpty. Operand 39943 states and 111070 transitions. [2022-01-18 11:21:52,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-01-18 11:21:52,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:52,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:52,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-01-18 11:21:52,994 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:52,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:52,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1711378056, now seen corresponding path program 1 times [2022-01-18 11:21:52,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:52,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637051256] [2022-01-18 11:21:52,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:52,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:21:53,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:53,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637051256] [2022-01-18 11:21:53,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637051256] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:21:53,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813911257] [2022-01-18 11:21:53,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:53,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:21:53,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:21:53,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:21:53,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 11:21:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:53,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 11:21:53,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:21:53,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:21:53,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:21:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:21:54,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813911257] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 11:21:54,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 11:21:54,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 16 [2022-01-18 11:21:54,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572415548] [2022-01-18 11:21:54,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:54,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:21:54,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:54,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:21:54,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-01-18 11:21:54,163 INFO L87 Difference]: Start difference. First operand 39943 states and 111070 transitions. Second operand has 9 states, 9 states have (on average 31.88888888888889) internal successors, (287), 9 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:54,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:54,383 INFO L93 Difference]: Finished difference Result 39944 states and 111071 transitions. [2022-01-18 11:21:54,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:21:54,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 31.88888888888889) internal successors, (287), 9 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2022-01-18 11:21:54,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:54,448 INFO L225 Difference]: With dead ends: 39944 [2022-01-18 11:21:54,449 INFO L226 Difference]: Without dead ends: 39944 [2022-01-18 11:21:54,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 566 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:21:54,449 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 996 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:54,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [996 Valid, 1211 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:21:54,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39944 states. [2022-01-18 11:21:54,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39944 to 39944. [2022-01-18 11:21:54,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39944 states, 39943 states have (on average 2.7807375510101897) internal successors, (111071), 39943 states have internal predecessors, (111071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39944 states to 39944 states and 111071 transitions. [2022-01-18 11:21:55,027 INFO L78 Accepts]: Start accepts. Automaton has 39944 states and 111071 transitions. Word has length 287 [2022-01-18 11:21:55,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:55,028 INFO L470 AbstractCegarLoop]: Abstraction has 39944 states and 111071 transitions. [2022-01-18 11:21:55,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 31.88888888888889) internal successors, (287), 9 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:55,028 INFO L276 IsEmpty]: Start isEmpty. Operand 39944 states and 111071 transitions. [2022-01-18 11:21:55,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:21:55,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:55,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:55,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 11:21:55,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable262 [2022-01-18 11:21:55,284 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:55,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:55,284 INFO L85 PathProgramCache]: Analyzing trace with hash -23445163, now seen corresponding path program 1 times [2022-01-18 11:21:55,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:55,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367753544] [2022-01-18 11:21:55,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:55,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:55,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:21:55,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:55,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367753544] [2022-01-18 11:21:55,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367753544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:55,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:55,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:21:55,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142802010] [2022-01-18 11:21:55,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:55,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:21:55,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:55,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:21:55,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:21:55,349 INFO L87 Difference]: Start difference. First operand 39944 states and 111071 transitions. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:55,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:55,548 INFO L93 Difference]: Finished difference Result 39970 states and 111098 transitions. [2022-01-18 11:21:55,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:21:55,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:21:55,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:55,639 INFO L225 Difference]: With dead ends: 39970 [2022-01-18 11:21:55,639 INFO L226 Difference]: Without dead ends: 39964 [2022-01-18 11:21:55,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:21:55,639 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 41 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:55,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 1781 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:21:55,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39964 states. [2022-01-18 11:21:56,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39964 to 39946. [2022-01-18 11:21:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39946 states, 39945 states have (on average 2.780648391538365) internal successors, (111073), 39945 states have internal predecessors, (111073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:56,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39946 states to 39946 states and 111073 transitions. [2022-01-18 11:21:56,259 INFO L78 Accepts]: Start accepts. Automaton has 39946 states and 111073 transitions. Word has length 293 [2022-01-18 11:21:56,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:56,260 INFO L470 AbstractCegarLoop]: Abstraction has 39946 states and 111073 transitions. [2022-01-18 11:21:56,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:56,260 INFO L276 IsEmpty]: Start isEmpty. Operand 39946 states and 111073 transitions. [2022-01-18 11:21:56,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:21:56,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:56,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:56,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-01-18 11:21:56,313 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:56,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:56,314 INFO L85 PathProgramCache]: Analyzing trace with hash 531721116, now seen corresponding path program 1 times [2022-01-18 11:21:56,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:56,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382632707] [2022-01-18 11:21:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:56,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:56,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:21:56,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:56,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382632707] [2022-01-18 11:21:56,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382632707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:56,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:56,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:21:56,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696048399] [2022-01-18 11:21:56,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:56,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:21:56,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:56,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:21:56,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:21:56,373 INFO L87 Difference]: Start difference. First operand 39946 states and 111073 transitions. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:56,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:56,559 INFO L93 Difference]: Finished difference Result 39969 states and 111097 transitions. [2022-01-18 11:21:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:21:56,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:21:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:56,625 INFO L225 Difference]: With dead ends: 39969 [2022-01-18 11:21:56,625 INFO L226 Difference]: Without dead ends: 39959 [2022-01-18 11:21:56,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:21:56,625 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 21 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:56,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 2099 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:21:56,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39959 states. [2022-01-18 11:21:57,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39959 to 39946. [2022-01-18 11:21:57,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39946 states, 39945 states have (on average 2.780648391538365) internal successors, (111073), 39945 states have internal predecessors, (111073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39946 states to 39946 states and 111073 transitions. [2022-01-18 11:21:57,435 INFO L78 Accepts]: Start accepts. Automaton has 39946 states and 111073 transitions. Word has length 293 [2022-01-18 11:21:57,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:57,435 INFO L470 AbstractCegarLoop]: Abstraction has 39946 states and 111073 transitions. [2022-01-18 11:21:57,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:57,435 INFO L276 IsEmpty]: Start isEmpty. Operand 39946 states and 111073 transitions. [2022-01-18 11:21:57,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:21:57,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:57,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:57,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-01-18 11:21:57,504 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:57,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:57,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2086510009, now seen corresponding path program 1 times [2022-01-18 11:21:57,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:57,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095510482] [2022-01-18 11:21:57,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:57,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:21:57,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:57,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095510482] [2022-01-18 11:21:57,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095510482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:57,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:57,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:21:57,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394262928] [2022-01-18 11:21:57,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:57,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:21:57,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:57,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:21:57,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:21:57,879 INFO L87 Difference]: Start difference. First operand 39946 states and 111073 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:59,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:59,589 INFO L93 Difference]: Finished difference Result 69944 states and 193255 transitions. [2022-01-18 11:21:59,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:21:59,589 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:21:59,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:59,738 INFO L225 Difference]: With dead ends: 69944 [2022-01-18 11:21:59,738 INFO L226 Difference]: Without dead ends: 69944 [2022-01-18 11:21:59,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=889, Invalid=3271, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:21:59,739 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 3583 mSDsluCounter, 11013 mSDsCounter, 0 mSdLazyCounter, 2173 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 11763 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:59,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 11763 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:21:59,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69944 states. [2022-01-18 11:22:00,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69944 to 40378. [2022-01-18 11:22:00,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40378 states, 40377 states have (on average 2.7877504519899943) internal successors, (112561), 40377 states have internal predecessors, (112561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:00,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40378 states to 40378 states and 112561 transitions. [2022-01-18 11:22:00,637 INFO L78 Accepts]: Start accepts. Automaton has 40378 states and 112561 transitions. Word has length 293 [2022-01-18 11:22:00,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:00,638 INFO L470 AbstractCegarLoop]: Abstraction has 40378 states and 112561 transitions. [2022-01-18 11:22:00,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:00,638 INFO L276 IsEmpty]: Start isEmpty. Operand 40378 states and 112561 transitions. [2022-01-18 11:22:00,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:00,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:00,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:00,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-01-18 11:22:00,692 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:00,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:00,693 INFO L85 PathProgramCache]: Analyzing trace with hash 714375338, now seen corresponding path program 1 times [2022-01-18 11:22:00,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:00,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191928091] [2022-01-18 11:22:00,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:00,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:01,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:01,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191928091] [2022-01-18 11:22:01,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191928091] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:01,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:01,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:01,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697616536] [2022-01-18 11:22:01,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:01,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:01,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:01,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:01,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:01,043 INFO L87 Difference]: Start difference. First operand 40378 states and 112561 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:02,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:02,954 INFO L93 Difference]: Finished difference Result 72832 states and 201111 transitions. [2022-01-18 11:22:02,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:22:02,955 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:02,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:03,089 INFO L225 Difference]: With dead ends: 72832 [2022-01-18 11:22:03,090 INFO L226 Difference]: Without dead ends: 72832 [2022-01-18 11:22:03,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=923, Invalid=3499, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:22:03,090 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 3729 mSDsluCounter, 11170 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3729 SdHoareTripleChecker+Valid, 11972 SdHoareTripleChecker+Invalid, 2205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:03,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3729 Valid, 11972 Invalid, 2205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2168 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:22:03,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72832 states. [2022-01-18 11:22:03,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72832 to 40410. [2022-01-18 11:22:03,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40410 states, 40409 states have (on average 2.7888094236432477) internal successors, (112693), 40409 states have internal predecessors, (112693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40410 states to 40410 states and 112693 transitions. [2022-01-18 11:22:03,999 INFO L78 Accepts]: Start accepts. Automaton has 40410 states and 112693 transitions. Word has length 293 [2022-01-18 11:22:03,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:03,999 INFO L470 AbstractCegarLoop]: Abstraction has 40410 states and 112693 transitions. [2022-01-18 11:22:03,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:03,999 INFO L276 IsEmpty]: Start isEmpty. Operand 40410 states and 112693 transitions. [2022-01-18 11:22:04,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:04,060 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:04,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:04,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-01-18 11:22:04,060 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:04,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:04,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1419618308, now seen corresponding path program 2 times [2022-01-18 11:22:04,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:04,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620507287] [2022-01-18 11:22:04,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:04,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:04,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:04,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:04,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620507287] [2022-01-18 11:22:04,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620507287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:04,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:04,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:04,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186817797] [2022-01-18 11:22:04,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:04,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:04,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:04,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:04,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:04,411 INFO L87 Difference]: Start difference. First operand 40410 states and 112693 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:06,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:06,235 INFO L93 Difference]: Finished difference Result 73561 states and 203181 transitions. [2022-01-18 11:22:06,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:22:06,235 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:06,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:06,361 INFO L225 Difference]: With dead ends: 73561 [2022-01-18 11:22:06,361 INFO L226 Difference]: Without dead ends: 73561 [2022-01-18 11:22:06,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=826, Invalid=3206, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:22:06,361 INFO L933 BasicCegarLoop]: 911 mSDtfsCounter, 4001 mSDsluCounter, 10267 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4001 SdHoareTripleChecker+Valid, 11054 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:06,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4001 Valid, 11054 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:22:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73561 states. [2022-01-18 11:22:07,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73561 to 40477. [2022-01-18 11:22:07,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40477 states, 40476 states have (on average 2.7885907698389167) internal successors, (112871), 40476 states have internal predecessors, (112871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40477 states to 40477 states and 112871 transitions. [2022-01-18 11:22:07,384 INFO L78 Accepts]: Start accepts. Automaton has 40477 states and 112871 transitions. Word has length 293 [2022-01-18 11:22:07,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:07,384 INFO L470 AbstractCegarLoop]: Abstraction has 40477 states and 112871 transitions. [2022-01-18 11:22:07,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:07,384 INFO L276 IsEmpty]: Start isEmpty. Operand 40477 states and 112871 transitions. [2022-01-18 11:22:07,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:07,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:07,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:07,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-01-18 11:22:07,440 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:07,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:07,441 INFO L85 PathProgramCache]: Analyzing trace with hash -295341300, now seen corresponding path program 3 times [2022-01-18 11:22:07,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:07,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650934076] [2022-01-18 11:22:07,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:07,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:07,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:07,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:07,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650934076] [2022-01-18 11:22:07,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650934076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:07,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:07,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:07,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753039780] [2022-01-18 11:22:07,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:07,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:07,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:07,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:07,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:07,777 INFO L87 Difference]: Start difference. First operand 40477 states and 112871 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:09,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:09,453 INFO L93 Difference]: Finished difference Result 81734 states and 224641 transitions. [2022-01-18 11:22:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:22:09,453 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:09,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:09,844 INFO L225 Difference]: With dead ends: 81734 [2022-01-18 11:22:09,845 INFO L226 Difference]: Without dead ends: 81734 [2022-01-18 11:22:09,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=857, Invalid=3303, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:22:09,845 INFO L933 BasicCegarLoop]: 930 mSDtfsCounter, 3592 mSDsluCounter, 11193 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3592 SdHoareTripleChecker+Valid, 11987 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:09,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3592 Valid, 11987 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2127 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:22:09,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81734 states. [2022-01-18 11:22:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81734 to 40611. [2022-01-18 11:22:10,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40611 states, 40610 states have (on average 2.788155626692933) internal successors, (113227), 40610 states have internal predecessors, (113227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:10,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40611 states to 40611 states and 113227 transitions. [2022-01-18 11:22:10,928 INFO L78 Accepts]: Start accepts. Automaton has 40611 states and 113227 transitions. Word has length 293 [2022-01-18 11:22:10,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:10,928 INFO L470 AbstractCegarLoop]: Abstraction has 40611 states and 113227 transitions. [2022-01-18 11:22:10,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:10,928 INFO L276 IsEmpty]: Start isEmpty. Operand 40611 states and 113227 transitions. [2022-01-18 11:22:10,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:10,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:10,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:10,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-01-18 11:22:10,983 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:10,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:10,983 INFO L85 PathProgramCache]: Analyzing trace with hash 867061098, now seen corresponding path program 4 times [2022-01-18 11:22:10,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:10,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791550287] [2022-01-18 11:22:10,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:10,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:11,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:11,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791550287] [2022-01-18 11:22:11,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791550287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:11,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:11,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:11,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991740041] [2022-01-18 11:22:11,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:11,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:11,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:11,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:11,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:11,298 INFO L87 Difference]: Start difference. First operand 40611 states and 113227 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:12,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:12,726 INFO L93 Difference]: Finished difference Result 50288 states and 138832 transitions. [2022-01-18 11:22:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:22:12,726 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:12,834 INFO L225 Difference]: With dead ends: 50288 [2022-01-18 11:22:12,834 INFO L226 Difference]: Without dead ends: 50288 [2022-01-18 11:22:12,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=700, Invalid=2840, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:22:12,835 INFO L933 BasicCegarLoop]: 872 mSDtfsCounter, 2882 mSDsluCounter, 10491 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2882 SdHoareTripleChecker+Valid, 11223 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:12,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2882 Valid, 11223 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:22:12,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50288 states. [2022-01-18 11:22:13,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50288 to 40678. [2022-01-18 11:22:13,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40678 states, 40677 states have (on average 2.7879391302210093) internal successors, (113405), 40677 states have internal predecessors, (113405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:13,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40678 states to 40678 states and 113405 transitions. [2022-01-18 11:22:13,652 INFO L78 Accepts]: Start accepts. Automaton has 40678 states and 113405 transitions. Word has length 293 [2022-01-18 11:22:13,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:13,652 INFO L470 AbstractCegarLoop]: Abstraction has 40678 states and 113405 transitions. [2022-01-18 11:22:13,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:13,652 INFO L276 IsEmpty]: Start isEmpty. Operand 40678 states and 113405 transitions. [2022-01-18 11:22:13,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:13,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:13,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:13,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-01-18 11:22:13,707 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:13,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash -756401344, now seen corresponding path program 5 times [2022-01-18 11:22:13,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:13,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350973674] [2022-01-18 11:22:13,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:13,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:14,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:14,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350973674] [2022-01-18 11:22:14,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350973674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:14,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:14,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:14,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115574744] [2022-01-18 11:22:14,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:14,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:14,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:14,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:14,089 INFO L87 Difference]: Start difference. First operand 40678 states and 113405 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:15,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:15,673 INFO L93 Difference]: Finished difference Result 53601 states and 147335 transitions. [2022-01-18 11:22:15,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:22:15,673 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:15,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:15,776 INFO L225 Difference]: With dead ends: 53601 [2022-01-18 11:22:15,776 INFO L226 Difference]: Without dead ends: 53601 [2022-01-18 11:22:15,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=711, Invalid=2829, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:22:15,776 INFO L933 BasicCegarLoop]: 899 mSDtfsCounter, 3561 mSDsluCounter, 10394 mSDsCounter, 0 mSdLazyCounter, 1888 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3561 SdHoareTripleChecker+Valid, 11148 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:15,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3561 Valid, 11148 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1888 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:22:15,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53601 states. [2022-01-18 11:22:16,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53601 to 40678. [2022-01-18 11:22:16,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40678 states, 40677 states have (on average 2.7879391302210093) internal successors, (113405), 40677 states have internal predecessors, (113405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40678 states to 40678 states and 113405 transitions. [2022-01-18 11:22:16,632 INFO L78 Accepts]: Start accepts. Automaton has 40678 states and 113405 transitions. Word has length 293 [2022-01-18 11:22:16,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:16,632 INFO L470 AbstractCegarLoop]: Abstraction has 40678 states and 113405 transitions. [2022-01-18 11:22:16,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:16,632 INFO L276 IsEmpty]: Start isEmpty. Operand 40678 states and 113405 transitions. [2022-01-18 11:22:16,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:16,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:16,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:16,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-01-18 11:22:16,689 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:16,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:16,689 INFO L85 PathProgramCache]: Analyzing trace with hash 738986091, now seen corresponding path program 2 times [2022-01-18 11:22:16,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:16,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865840769] [2022-01-18 11:22:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:16,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:17,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:17,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865840769] [2022-01-18 11:22:17,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865840769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:17,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:17,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:17,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525763435] [2022-01-18 11:22:17,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:17,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:17,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:17,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:17,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:17,039 INFO L87 Difference]: Start difference. First operand 40678 states and 113405 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:18,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:18,657 INFO L93 Difference]: Finished difference Result 69530 states and 191975 transitions. [2022-01-18 11:22:18,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:22:18,657 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:18,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:19,016 INFO L225 Difference]: With dead ends: 69530 [2022-01-18 11:22:19,016 INFO L226 Difference]: Without dead ends: 69530 [2022-01-18 11:22:19,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=648, Invalid=2658, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:22:19,017 INFO L933 BasicCegarLoop]: 826 mSDtfsCounter, 3382 mSDsluCounter, 10075 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3382 SdHoareTripleChecker+Valid, 10761 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:19,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3382 Valid, 10761 Invalid, 2080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2044 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:22:19,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69530 states. [2022-01-18 11:22:19,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69530 to 39562. [2022-01-18 11:22:19,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39562 states, 39561 states have (on average 2.780516164909886) internal successors, (110000), 39561 states have internal predecessors, (110000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39562 states to 39562 states and 110000 transitions. [2022-01-18 11:22:19,716 INFO L78 Accepts]: Start accepts. Automaton has 39562 states and 110000 transitions. Word has length 293 [2022-01-18 11:22:19,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:19,716 INFO L470 AbstractCegarLoop]: Abstraction has 39562 states and 110000 transitions. [2022-01-18 11:22:19,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:19,716 INFO L276 IsEmpty]: Start isEmpty. Operand 39562 states and 110000 transitions. [2022-01-18 11:22:19,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:19,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:19,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:19,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-01-18 11:22:19,939 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:19,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:19,940 INFO L85 PathProgramCache]: Analyzing trace with hash 65331189, now seen corresponding path program 3 times [2022-01-18 11:22:19,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:19,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117485943] [2022-01-18 11:22:19,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:19,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:20,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:20,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117485943] [2022-01-18 11:22:20,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117485943] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:20,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:20,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:22:20,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732187796] [2022-01-18 11:22:20,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:20,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:22:20,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:20,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:22:20,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:22:20,191 INFO L87 Difference]: Start difference. First operand 39562 states and 110000 transitions. Second operand has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:21,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:21,586 INFO L93 Difference]: Finished difference Result 69326 states and 191565 transitions. [2022-01-18 11:22:21,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:22:21,587 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:21,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:21,716 INFO L225 Difference]: With dead ends: 69326 [2022-01-18 11:22:21,716 INFO L226 Difference]: Without dead ends: 69326 [2022-01-18 11:22:21,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=612, Invalid=2580, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:22:21,716 INFO L933 BasicCegarLoop]: 887 mSDtfsCounter, 2994 mSDsluCounter, 10517 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 11281 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:21,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2994 Valid, 11281 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:22:21,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69326 states. [2022-01-18 11:22:22,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69326 to 39306. [2022-01-18 11:22:22,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39306 states, 39305 states have (on average 2.775830047067803) internal successors, (109104), 39305 states have internal predecessors, (109104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:22,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39306 states to 39306 states and 109104 transitions. [2022-01-18 11:22:22,592 INFO L78 Accepts]: Start accepts. Automaton has 39306 states and 109104 transitions. Word has length 293 [2022-01-18 11:22:22,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:22,592 INFO L470 AbstractCegarLoop]: Abstraction has 39306 states and 109104 transitions. [2022-01-18 11:22:22,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:22,592 INFO L276 IsEmpty]: Start isEmpty. Operand 39306 states and 109104 transitions. [2022-01-18 11:22:22,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:22,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:22,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:22,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-01-18 11:22:22,649 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:22,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:22,650 INFO L85 PathProgramCache]: Analyzing trace with hash -450915543, now seen corresponding path program 4 times [2022-01-18 11:22:22,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:22,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184450253] [2022-01-18 11:22:22,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:22,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:22,967 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:22,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:22,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184450253] [2022-01-18 11:22:22,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184450253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:22,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:22,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:22,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705741199] [2022-01-18 11:22:22,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:22,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:22,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:22,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:22,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:22,969 INFO L87 Difference]: Start difference. First operand 39306 states and 109104 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:24,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:24,289 INFO L93 Difference]: Finished difference Result 43776 states and 121061 transitions. [2022-01-18 11:22:24,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:22:24,290 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:24,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:24,364 INFO L225 Difference]: With dead ends: 43776 [2022-01-18 11:22:24,365 INFO L226 Difference]: Without dead ends: 43776 [2022-01-18 11:22:24,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=609, Invalid=2583, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:22:24,365 INFO L933 BasicCegarLoop]: 735 mSDtfsCounter, 2725 mSDsluCounter, 9101 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 9739 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:24,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2725 Valid, 9739 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:22:24,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43776 states. [2022-01-18 11:22:24,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43776 to 39306. [2022-01-18 11:22:24,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39306 states, 39305 states have (on average 2.775830047067803) internal successors, (109104), 39305 states have internal predecessors, (109104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:25,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39306 states to 39306 states and 109104 transitions. [2022-01-18 11:22:25,048 INFO L78 Accepts]: Start accepts. Automaton has 39306 states and 109104 transitions. Word has length 293 [2022-01-18 11:22:25,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:25,048 INFO L470 AbstractCegarLoop]: Abstraction has 39306 states and 109104 transitions. [2022-01-18 11:22:25,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:25,048 INFO L276 IsEmpty]: Start isEmpty. Operand 39306 states and 109104 transitions. [2022-01-18 11:22:25,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:25,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:25,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:25,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-01-18 11:22:25,221 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:25,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:25,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1184658438, now seen corresponding path program 6 times [2022-01-18 11:22:25,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:25,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269034586] [2022-01-18 11:22:25,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:25,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:25,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:25,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:25,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269034586] [2022-01-18 11:22:25,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269034586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:25,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:25,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:25,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471982454] [2022-01-18 11:22:25,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:25,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:25,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:25,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:25,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:25,561 INFO L87 Difference]: Start difference. First operand 39306 states and 109104 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:26,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:26,812 INFO L93 Difference]: Finished difference Result 46798 states and 129153 transitions. [2022-01-18 11:22:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:22:26,812 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:26,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:26,888 INFO L225 Difference]: With dead ends: 46798 [2022-01-18 11:22:26,888 INFO L226 Difference]: Without dead ends: 46798 [2022-01-18 11:22:26,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=609, Invalid=2583, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:22:26,889 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 2690 mSDsluCounter, 9118 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 9746 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:26,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2690 Valid, 9746 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:22:26,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46798 states. [2022-01-18 11:22:27,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46798 to 39270. [2022-01-18 11:22:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39270 states, 39269 states have (on average 2.775446280781278) internal successors, (108989), 39269 states have internal predecessors, (108989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39270 states to 39270 states and 108989 transitions. [2022-01-18 11:22:27,590 INFO L78 Accepts]: Start accepts. Automaton has 39270 states and 108989 transitions. Word has length 293 [2022-01-18 11:22:27,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:27,590 INFO L470 AbstractCegarLoop]: Abstraction has 39270 states and 108989 transitions. [2022-01-18 11:22:27,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:27,591 INFO L276 IsEmpty]: Start isEmpty. Operand 39270 states and 108989 transitions. [2022-01-18 11:22:27,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:27,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:27,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:27,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-01-18 11:22:27,650 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:27,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:27,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1219317282, now seen corresponding path program 7 times [2022-01-18 11:22:27,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:27,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121708858] [2022-01-18 11:22:27,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:27,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:27,985 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:27,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:27,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121708858] [2022-01-18 11:22:27,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121708858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:27,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:27,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:27,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448938281] [2022-01-18 11:22:27,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:27,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:27,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:27,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:27,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:27,986 INFO L87 Difference]: Start difference. First operand 39270 states and 108989 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:29,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:29,377 INFO L93 Difference]: Finished difference Result 69003 states and 190498 transitions. [2022-01-18 11:22:29,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:22:29,377 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:29,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:29,666 INFO L225 Difference]: With dead ends: 69003 [2022-01-18 11:22:29,666 INFO L226 Difference]: Without dead ends: 69003 [2022-01-18 11:22:29,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=582, Invalid=2388, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:22:29,666 INFO L933 BasicCegarLoop]: 793 mSDtfsCounter, 2918 mSDsluCounter, 10623 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2918 SdHoareTripleChecker+Valid, 11283 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:29,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2918 Valid, 11283 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:22:29,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69003 states. [2022-01-18 11:22:30,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69003 to 39526. [2022-01-18 11:22:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39526 states, 39525 states have (on average 2.7801391524351677) internal successors, (109885), 39525 states have internal predecessors, (109885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:30,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39526 states to 39526 states and 109885 transitions. [2022-01-18 11:22:30,388 INFO L78 Accepts]: Start accepts. Automaton has 39526 states and 109885 transitions. Word has length 293 [2022-01-18 11:22:30,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:30,389 INFO L470 AbstractCegarLoop]: Abstraction has 39526 states and 109885 transitions. [2022-01-18 11:22:30,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:30,389 INFO L276 IsEmpty]: Start isEmpty. Operand 39526 states and 109885 transitions. [2022-01-18 11:22:30,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:30,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:30,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:30,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-01-18 11:22:30,630 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:30,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:30,630 INFO L85 PathProgramCache]: Analyzing trace with hash -878360715, now seen corresponding path program 5 times [2022-01-18 11:22:30,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:30,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412272594] [2022-01-18 11:22:30,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:30,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:30,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:30,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412272594] [2022-01-18 11:22:30,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412272594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:30,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:30,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:22:30,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866858500] [2022-01-18 11:22:30,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:30,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:22:30,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:30,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:22:30,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:22:30,903 INFO L87 Difference]: Start difference. First operand 39526 states and 109885 transitions. Second operand has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:32,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:32,383 INFO L93 Difference]: Finished difference Result 67542 states and 186554 transitions. [2022-01-18 11:22:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:22:32,383 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:32,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:32,502 INFO L225 Difference]: With dead ends: 67542 [2022-01-18 11:22:32,502 INFO L226 Difference]: Without dead ends: 67542 [2022-01-18 11:22:32,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=579, Invalid=2391, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:22:32,503 INFO L933 BasicCegarLoop]: 844 mSDtfsCounter, 2366 mSDsluCounter, 11057 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 11777 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:32,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2366 Valid, 11777 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:22:32,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67542 states. [2022-01-18 11:22:33,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67542 to 39206. [2022-01-18 11:22:33,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39206 states, 39205 states have (on average 2.775589848233644) internal successors, (108817), 39205 states have internal predecessors, (108817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:33,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39206 states to 39206 states and 108817 transitions. [2022-01-18 11:22:33,443 INFO L78 Accepts]: Start accepts. Automaton has 39206 states and 108817 transitions. Word has length 293 [2022-01-18 11:22:33,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:33,443 INFO L470 AbstractCegarLoop]: Abstraction has 39206 states and 108817 transitions. [2022-01-18 11:22:33,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:33,443 INFO L276 IsEmpty]: Start isEmpty. Operand 39206 states and 108817 transitions. [2022-01-18 11:22:33,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:33,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:33,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:33,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-01-18 11:22:33,498 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:33,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:33,499 INFO L85 PathProgramCache]: Analyzing trace with hash 630519620, now seen corresponding path program 8 times [2022-01-18 11:22:33,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:33,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173306280] [2022-01-18 11:22:33,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:33,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:33,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:33,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173306280] [2022-01-18 11:22:33,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173306280] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:33,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:33,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:33,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258167842] [2022-01-18 11:22:33,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:33,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:33,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:33,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:33,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:33,814 INFO L87 Difference]: Start difference. First operand 39206 states and 108817 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:35,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:35,032 INFO L93 Difference]: Finished difference Result 42663 states and 118084 transitions. [2022-01-18 11:22:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:22:35,032 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:35,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:35,103 INFO L225 Difference]: With dead ends: 42663 [2022-01-18 11:22:35,104 INFO L226 Difference]: Without dead ends: 42663 [2022-01-18 11:22:35,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=504, Invalid=2148, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:22:35,104 INFO L933 BasicCegarLoop]: 645 mSDtfsCounter, 2751 mSDsluCounter, 8245 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2751 SdHoareTripleChecker+Valid, 8800 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:35,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2751 Valid, 8800 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:35,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42663 states. [2022-01-18 11:22:35,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42663 to 39146. [2022-01-18 11:22:35,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39146 states, 39145 states have (on average 2.7757312555881977) internal successors, (108656), 39145 states have internal predecessors, (108656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39146 states to 39146 states and 108656 transitions. [2022-01-18 11:22:35,734 INFO L78 Accepts]: Start accepts. Automaton has 39146 states and 108656 transitions. Word has length 293 [2022-01-18 11:22:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:35,734 INFO L470 AbstractCegarLoop]: Abstraction has 39146 states and 108656 transitions. [2022-01-18 11:22:35,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 39146 states and 108656 transitions. [2022-01-18 11:22:35,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:35,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:35,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:35,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-01-18 11:22:35,786 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:35,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:35,786 INFO L85 PathProgramCache]: Analyzing trace with hash 67564544, now seen corresponding path program 9 times [2022-01-18 11:22:35,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:35,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771124596] [2022-01-18 11:22:35,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:35,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:36,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:36,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:36,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771124596] [2022-01-18 11:22:36,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771124596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:36,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:36,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:36,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879801392] [2022-01-18 11:22:36,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:36,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:36,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:36,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:36,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:36,271 INFO L87 Difference]: Start difference. First operand 39146 states and 108656 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:38,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:38,121 INFO L93 Difference]: Finished difference Result 95280 states and 262237 transitions. [2022-01-18 11:22:38,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:22:38,121 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:38,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:38,293 INFO L225 Difference]: With dead ends: 95280 [2022-01-18 11:22:38,293 INFO L226 Difference]: Without dead ends: 95280 [2022-01-18 11:22:38,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=746, Invalid=2914, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:22:38,294 INFO L933 BasicCegarLoop]: 1004 mSDtfsCounter, 3197 mSDsluCounter, 12929 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3197 SdHoareTripleChecker+Valid, 13745 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:38,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3197 Valid, 13745 Invalid, 2562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:22:38,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95280 states. [2022-01-18 11:22:39,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95280 to 39114. [2022-01-18 11:22:39,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39114 states, 39113 states have (on average 2.7746273617467336) internal successors, (108524), 39113 states have internal predecessors, (108524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:39,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39114 states to 39114 states and 108524 transitions. [2022-01-18 11:22:39,456 INFO L78 Accepts]: Start accepts. Automaton has 39114 states and 108524 transitions. Word has length 293 [2022-01-18 11:22:39,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:39,457 INFO L470 AbstractCegarLoop]: Abstraction has 39114 states and 108524 transitions. [2022-01-18 11:22:39,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:39,457 INFO L276 IsEmpty]: Start isEmpty. Operand 39114 states and 108524 transitions. [2022-01-18 11:22:39,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:39,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:39,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:39,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-01-18 11:22:39,519 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:39,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:39,520 INFO L85 PathProgramCache]: Analyzing trace with hash 408521111, now seen corresponding path program 6 times [2022-01-18 11:22:39,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:39,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055100964] [2022-01-18 11:22:39,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:39,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:39,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:39,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055100964] [2022-01-18 11:22:39,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055100964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:39,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:39,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:39,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492589957] [2022-01-18 11:22:39,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:39,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:39,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:39,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:39,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:39,858 INFO L87 Difference]: Start difference. First operand 39114 states and 108524 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:41,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:41,750 INFO L93 Difference]: Finished difference Result 94210 states and 259584 transitions. [2022-01-18 11:22:41,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:22:41,751 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:41,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:41,938 INFO L225 Difference]: With dead ends: 94210 [2022-01-18 11:22:41,938 INFO L226 Difference]: Without dead ends: 94210 [2022-01-18 11:22:41,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=878, Invalid=3412, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:22:41,939 INFO L933 BasicCegarLoop]: 1058 mSDtfsCounter, 3534 mSDsluCounter, 12328 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3534 SdHoareTripleChecker+Valid, 13228 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:41,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3534 Valid, 13228 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:22:42,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94210 states. [2022-01-18 11:22:42,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94210 to 38314. [2022-01-18 11:22:42,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38314 states, 38313 states have (on average 2.7648056795343616) internal successors, (105928), 38313 states have internal predecessors, (105928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:43,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38314 states to 38314 states and 105928 transitions. [2022-01-18 11:22:43,035 INFO L78 Accepts]: Start accepts. Automaton has 38314 states and 105928 transitions. Word has length 293 [2022-01-18 11:22:43,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:43,035 INFO L470 AbstractCegarLoop]: Abstraction has 38314 states and 105928 transitions. [2022-01-18 11:22:43,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:43,036 INFO L276 IsEmpty]: Start isEmpty. Operand 38314 states and 105928 transitions. [2022-01-18 11:22:43,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:43,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:43,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:43,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-01-18 11:22:43,090 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:43,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:43,090 INFO L85 PathProgramCache]: Analyzing trace with hash -107725621, now seen corresponding path program 7 times [2022-01-18 11:22:43,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:43,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128461450] [2022-01-18 11:22:43,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:43,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:43,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:43,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:43,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128461450] [2022-01-18 11:22:43,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128461450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:43,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:43,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:22:43,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301865414] [2022-01-18 11:22:43,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:43,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:22:43,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:43,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:22:43,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:22:43,350 INFO L87 Difference]: Start difference. First operand 38314 states and 105928 transitions. Second operand has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:44,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:44,992 INFO L93 Difference]: Finished difference Result 70192 states and 193495 transitions. [2022-01-18 11:22:44,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:22:44,992 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:44,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:45,124 INFO L225 Difference]: With dead ends: 70192 [2022-01-18 11:22:45,124 INFO L226 Difference]: Without dead ends: 70192 [2022-01-18 11:22:45,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=593, Invalid=2487, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:22:45,125 INFO L933 BasicCegarLoop]: 906 mSDtfsCounter, 2508 mSDsluCounter, 11527 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2508 SdHoareTripleChecker+Valid, 12289 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:45,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2508 Valid, 12289 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:22:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70192 states. [2022-01-18 11:22:45,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70192 to 38314. [2022-01-18 11:22:46,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38314 states, 38313 states have (on average 2.7648056795343616) internal successors, (105928), 38313 states have internal predecessors, (105928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38314 states to 38314 states and 105928 transitions. [2022-01-18 11:22:46,096 INFO L78 Accepts]: Start accepts. Automaton has 38314 states and 105928 transitions. Word has length 293 [2022-01-18 11:22:46,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:46,096 INFO L470 AbstractCegarLoop]: Abstraction has 38314 states and 105928 transitions. [2022-01-18 11:22:46,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,097 INFO L276 IsEmpty]: Start isEmpty. Operand 38314 states and 105928 transitions. [2022-01-18 11:22:46,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:46,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:46,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:46,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-01-18 11:22:46,157 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:46,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:46,158 INFO L85 PathProgramCache]: Analyzing trace with hash -841468516, now seen corresponding path program 10 times [2022-01-18 11:22:46,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:46,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204675316] [2022-01-18 11:22:46,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:46,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:46,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:46,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204675316] [2022-01-18 11:22:46,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204675316] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:46,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:46,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:46,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641556825] [2022-01-18 11:22:46,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:46,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:46,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:46,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:46,481 INFO L87 Difference]: Start difference. First operand 38314 states and 105928 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:48,203 INFO L93 Difference]: Finished difference Result 73350 states and 201945 transitions. [2022-01-18 11:22:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:22:48,203 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:48,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:48,612 INFO L225 Difference]: With dead ends: 73350 [2022-01-18 11:22:48,612 INFO L226 Difference]: Without dead ends: 73350 [2022-01-18 11:22:48,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=725, Invalid=2935, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:22:48,613 INFO L933 BasicCegarLoop]: 872 mSDtfsCounter, 3393 mSDsluCounter, 10625 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3393 SdHoareTripleChecker+Valid, 11364 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:48,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3393 Valid, 11364 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2128 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:22:48,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73350 states. [2022-01-18 11:22:49,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73350 to 38278. [2022-01-18 11:22:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38278 states, 38277 states have (on average 2.764401598871385) internal successors, (105813), 38277 states have internal predecessors, (105813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38278 states to 38278 states and 105813 transitions. [2022-01-18 11:22:49,502 INFO L78 Accepts]: Start accepts. Automaton has 38278 states and 105813 transitions. Word has length 293 [2022-01-18 11:22:49,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:49,502 INFO L470 AbstractCegarLoop]: Abstraction has 38278 states and 105813 transitions. [2022-01-18 11:22:49,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 38278 states and 105813 transitions. [2022-01-18 11:22:49,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:49,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:49,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:49,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-01-18 11:22:49,564 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:49,564 INFO L85 PathProgramCache]: Analyzing trace with hash -618554137, now seen corresponding path program 8 times [2022-01-18 11:22:49,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:49,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144439490] [2022-01-18 11:22:49,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:49,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:50,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:50,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:50,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144439490] [2022-01-18 11:22:50,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144439490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:50,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:50,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:50,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249192987] [2022-01-18 11:22:50,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:50,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:50,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:50,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:50,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:50,094 INFO L87 Difference]: Start difference. First operand 38278 states and 105813 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:51,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:51,736 INFO L93 Difference]: Finished difference Result 71911 states and 197621 transitions. [2022-01-18 11:22:51,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:22:51,737 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:51,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:51,870 INFO L225 Difference]: With dead ends: 71911 [2022-01-18 11:22:51,870 INFO L226 Difference]: Without dead ends: 71911 [2022-01-18 11:22:51,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=724, Invalid=2936, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:22:51,871 INFO L933 BasicCegarLoop]: 928 mSDtfsCounter, 3309 mSDsluCounter, 11058 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3309 SdHoareTripleChecker+Valid, 11848 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:51,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3309 Valid, 11848 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:22:51,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71911 states. [2022-01-18 11:22:52,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71911 to 38278. [2022-01-18 11:22:52,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38278 states, 38277 states have (on average 2.764401598871385) internal successors, (105813), 38277 states have internal predecessors, (105813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38278 states to 38278 states and 105813 transitions. [2022-01-18 11:22:52,842 INFO L78 Accepts]: Start accepts. Automaton has 38278 states and 105813 transitions. Word has length 293 [2022-01-18 11:22:52,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:52,842 INFO L470 AbstractCegarLoop]: Abstraction has 38278 states and 105813 transitions. [2022-01-18 11:22:52,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,842 INFO L276 IsEmpty]: Start isEmpty. Operand 38278 states and 105813 transitions. [2022-01-18 11:22:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:52,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:52,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:52,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-01-18 11:22:52,894 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:52,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:52,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1035450218, now seen corresponding path program 11 times [2022-01-18 11:22:52,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:52,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101085772] [2022-01-18 11:22:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:52,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:53,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:53,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:53,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101085772] [2022-01-18 11:22:53,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101085772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:53,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:53,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:53,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426415484] [2022-01-18 11:22:53,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:53,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:53,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:53,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:53,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:53,210 INFO L87 Difference]: Start difference. First operand 38278 states and 105813 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:54,887 INFO L93 Difference]: Finished difference Result 74337 states and 203917 transitions. [2022-01-18 11:22:54,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:22:54,888 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:54,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:55,037 INFO L225 Difference]: With dead ends: 74337 [2022-01-18 11:22:55,037 INFO L226 Difference]: Without dead ends: 74337 [2022-01-18 11:22:55,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=724, Invalid=2936, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:22:55,038 INFO L933 BasicCegarLoop]: 934 mSDtfsCounter, 3030 mSDsluCounter, 11248 mSDsCounter, 0 mSdLazyCounter, 2109 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3030 SdHoareTripleChecker+Valid, 12044 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:55,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3030 Valid, 12044 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2109 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:22:55,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74337 states. [2022-01-18 11:22:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74337 to 38206. [2022-01-18 11:22:56,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38206 states, 38205 states have (on average 2.7635911529904464) internal successors, (105583), 38205 states have internal predecessors, (105583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38206 states to 38206 states and 105583 transitions. [2022-01-18 11:22:56,086 INFO L78 Accepts]: Start accepts. Automaton has 38206 states and 105583 transitions. Word has length 293 [2022-01-18 11:22:56,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:56,086 INFO L470 AbstractCegarLoop]: Abstraction has 38206 states and 105583 transitions. [2022-01-18 11:22:56,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,087 INFO L276 IsEmpty]: Start isEmpty. Operand 38206 states and 105583 transitions. [2022-01-18 11:22:56,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:56,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:56,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:56,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-01-18 11:22:56,144 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:56,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:56,144 INFO L85 PathProgramCache]: Analyzing trace with hash -839402206, now seen corresponding path program 12 times [2022-01-18 11:22:56,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:56,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963966645] [2022-01-18 11:22:56,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:56,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:56,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:56,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:56,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963966645] [2022-01-18 11:22:56,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963966645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:56,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:56,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:56,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039573919] [2022-01-18 11:22:56,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:56,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:56,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:56,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:56,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:56,455 INFO L87 Difference]: Start difference. First operand 38206 states and 105583 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:58,152 INFO L93 Difference]: Finished difference Result 66264 states and 181503 transitions. [2022-01-18 11:22:58,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:22:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:22:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:58,491 INFO L225 Difference]: With dead ends: 66264 [2022-01-18 11:22:58,492 INFO L226 Difference]: Without dead ends: 66264 [2022-01-18 11:22:58,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=808, Invalid=3224, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:22:58,492 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 3436 mSDsluCounter, 11521 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3436 SdHoareTripleChecker+Valid, 12310 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:58,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3436 Valid, 12310 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:22:58,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66264 states. [2022-01-18 11:22:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66264 to 36914. [2022-01-18 11:22:59,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36914 states, 36913 states have (on average 2.758052718554439) internal successors, (101808), 36913 states have internal predecessors, (101808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36914 states to 36914 states and 101808 transitions. [2022-01-18 11:22:59,224 INFO L78 Accepts]: Start accepts. Automaton has 36914 states and 101808 transitions. Word has length 293 [2022-01-18 11:22:59,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:59,225 INFO L470 AbstractCegarLoop]: Abstraction has 36914 states and 101808 transitions. [2022-01-18 11:22:59,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 36914 states and 101808 transitions. [2022-01-18 11:22:59,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:22:59,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:59,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:59,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-01-18 11:22:59,276 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:59,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:59,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1318872686, now seen corresponding path program 13 times [2022-01-18 11:22:59,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:59,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226059363] [2022-01-18 11:22:59,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:59,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:59,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:22:59,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:59,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226059363] [2022-01-18 11:22:59,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226059363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:59,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:59,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:22:59,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767706603] [2022-01-18 11:22:59,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:59,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:22:59,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:59,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:22:59,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:22:59,777 INFO L87 Difference]: Start difference. First operand 36914 states and 101808 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:01,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:01,591 INFO L93 Difference]: Finished difference Result 67780 states and 185653 transitions. [2022-01-18 11:23:01,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:23:01,591 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:01,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:01,725 INFO L225 Difference]: With dead ends: 67780 [2022-01-18 11:23:01,725 INFO L226 Difference]: Without dead ends: 67780 [2022-01-18 11:23:01,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=799, Invalid=3233, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:23:01,726 INFO L933 BasicCegarLoop]: 950 mSDtfsCounter, 3408 mSDsluCounter, 11867 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3408 SdHoareTripleChecker+Valid, 12663 SdHoareTripleChecker+Invalid, 2437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:01,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3408 Valid, 12663 Invalid, 2437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:23:01,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67780 states. [2022-01-18 11:23:02,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67780 to 36078. [2022-01-18 11:23:02,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36078 states, 36077 states have (on average 2.747706294869307) internal successors, (99129), 36077 states have internal predecessors, (99129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36078 states to 36078 states and 99129 transitions. [2022-01-18 11:23:02,615 INFO L78 Accepts]: Start accepts. Automaton has 36078 states and 99129 transitions. Word has length 293 [2022-01-18 11:23:02,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:02,615 INFO L470 AbstractCegarLoop]: Abstraction has 36078 states and 99129 transitions. [2022-01-18 11:23:02,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 36078 states and 99129 transitions. [2022-01-18 11:23:02,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:02,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:02,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:02,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-01-18 11:23:02,665 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:02,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1014692371, now seen corresponding path program 9 times [2022-01-18 11:23:02,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:02,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717649394] [2022-01-18 11:23:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:02,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:02,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:02,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:02,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717649394] [2022-01-18 11:23:02,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717649394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:02,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:02,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:23:02,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091130416] [2022-01-18 11:23:02,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:02,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:23:02,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:02,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:23:02,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:23:02,927 INFO L87 Difference]: Start difference. First operand 36078 states and 99129 transitions. Second operand has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:04,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:04,417 INFO L93 Difference]: Finished difference Result 65792 states and 180568 transitions. [2022-01-18 11:23:04,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:23:04,417 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:04,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:04,547 INFO L225 Difference]: With dead ends: 65792 [2022-01-18 11:23:04,547 INFO L226 Difference]: Without dead ends: 65792 [2022-01-18 11:23:04,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=579, Invalid=2501, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:23:04,548 INFO L933 BasicCegarLoop]: 956 mSDtfsCounter, 2573 mSDsluCounter, 11262 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 12077 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:04,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2573 Valid, 12077 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:23:04,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65792 states. [2022-01-18 11:23:05,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65792 to 36078. [2022-01-18 11:23:05,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36078 states, 36077 states have (on average 2.747706294869307) internal successors, (99129), 36077 states have internal predecessors, (99129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36078 states to 36078 states and 99129 transitions. [2022-01-18 11:23:05,292 INFO L78 Accepts]: Start accepts. Automaton has 36078 states and 99129 transitions. Word has length 293 [2022-01-18 11:23:05,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:05,292 INFO L470 AbstractCegarLoop]: Abstraction has 36078 states and 99129 transitions. [2022-01-18 11:23:05,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 36078 states and 99129 transitions. [2022-01-18 11:23:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:05,344 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:05,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:05,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-01-18 11:23:05,344 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:05,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:05,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1748435266, now seen corresponding path program 14 times [2022-01-18 11:23:05,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:05,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352366868] [2022-01-18 11:23:05,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:05,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:05,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:05,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:05,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352366868] [2022-01-18 11:23:05,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352366868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:05,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:05,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:23:05,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770837275] [2022-01-18 11:23:05,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:05,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:23:05,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:05,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:23:05,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:23:05,792 INFO L87 Difference]: Start difference. First operand 36078 states and 99129 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:07,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:07,347 INFO L93 Difference]: Finished difference Result 68950 states and 189018 transitions. [2022-01-18 11:23:07,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:23:07,348 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:07,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:07,472 INFO L225 Difference]: With dead ends: 68950 [2022-01-18 11:23:07,472 INFO L226 Difference]: Without dead ends: 68950 [2022-01-18 11:23:07,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=711, Invalid=2949, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:23:07,472 INFO L933 BasicCegarLoop]: 920 mSDtfsCounter, 3159 mSDsluCounter, 11674 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3159 SdHoareTripleChecker+Valid, 12443 SdHoareTripleChecker+Invalid, 2352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:07,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3159 Valid, 12443 Invalid, 2352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:23:07,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68950 states. [2022-01-18 11:23:08,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68950 to 36042. [2022-01-18 11:23:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36042 states, 36041 states have (on average 2.7472600649260563) internal successors, (99014), 36041 states have internal predecessors, (99014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36042 states to 36042 states and 99014 transitions. [2022-01-18 11:23:08,355 INFO L78 Accepts]: Start accepts. Automaton has 36042 states and 99014 transitions. Word has length 293 [2022-01-18 11:23:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:08,355 INFO L470 AbstractCegarLoop]: Abstraction has 36042 states and 99014 transitions. [2022-01-18 11:23:08,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 36042 states and 99014 transitions. [2022-01-18 11:23:08,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:08,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:08,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:08,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-01-18 11:23:08,407 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:08,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:08,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1525520887, now seen corresponding path program 10 times [2022-01-18 11:23:08,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:08,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775370783] [2022-01-18 11:23:08,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:08,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:08,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:08,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775370783] [2022-01-18 11:23:08,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775370783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:08,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:08,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:23:08,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90576884] [2022-01-18 11:23:08,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:08,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:23:08,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:08,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:23:08,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:23:08,712 INFO L87 Difference]: Start difference. First operand 36042 states and 99014 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:10,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:10,485 INFO L93 Difference]: Finished difference Result 69564 states and 190363 transitions. [2022-01-18 11:23:10,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:23:10,486 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:10,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:10,619 INFO L225 Difference]: With dead ends: 69564 [2022-01-18 11:23:10,619 INFO L226 Difference]: Without dead ends: 69564 [2022-01-18 11:23:10,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=738, Invalid=3044, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:23:10,619 INFO L933 BasicCegarLoop]: 976 mSDtfsCounter, 3074 mSDsluCounter, 12587 mSDsCounter, 0 mSdLazyCounter, 2258 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3074 SdHoareTripleChecker+Valid, 13405 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:10,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3074 Valid, 13405 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2258 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:23:10,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69564 states. [2022-01-18 11:23:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69564 to 36042. [2022-01-18 11:23:11,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36042 states, 36041 states have (on average 2.7472600649260563) internal successors, (99014), 36041 states have internal predecessors, (99014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36042 states to 36042 states and 99014 transitions. [2022-01-18 11:23:11,607 INFO L78 Accepts]: Start accepts. Automaton has 36042 states and 99014 transitions. Word has length 293 [2022-01-18 11:23:11,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:11,608 INFO L470 AbstractCegarLoop]: Abstraction has 36042 states and 99014 transitions. [2022-01-18 11:23:11,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:11,608 INFO L276 IsEmpty]: Start isEmpty. Operand 36042 states and 99014 transitions. [2022-01-18 11:23:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:11,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:11,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:11,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-01-18 11:23:11,657 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:11,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:11,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1942416968, now seen corresponding path program 15 times [2022-01-18 11:23:11,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:11,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703149931] [2022-01-18 11:23:11,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:11,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:11,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:11,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:11,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703149931] [2022-01-18 11:23:11,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703149931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:11,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:11,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:23:11,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691938544] [2022-01-18 11:23:11,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:11,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:23:11,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:11,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:23:11,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:23:11,958 INFO L87 Difference]: Start difference. First operand 36042 states and 99014 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:13,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:13,621 INFO L93 Difference]: Finished difference Result 76619 states and 209016 transitions. [2022-01-18 11:23:13,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:23:13,622 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:13,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:13,770 INFO L225 Difference]: With dead ends: 76619 [2022-01-18 11:23:13,770 INFO L226 Difference]: Without dead ends: 76619 [2022-01-18 11:23:13,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=738, Invalid=3044, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:23:13,771 INFO L933 BasicCegarLoop]: 958 mSDtfsCounter, 3129 mSDsluCounter, 12173 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3129 SdHoareTripleChecker+Valid, 12975 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:13,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3129 Valid, 12975 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2329 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:23:13,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76619 states. [2022-01-18 11:23:14,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76619 to 35970. [2022-01-18 11:23:14,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35970 states, 35969 states have (on average 2.746364925352387) internal successors, (98784), 35969 states have internal predecessors, (98784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:14,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35970 states to 35970 states and 98784 transitions. [2022-01-18 11:23:14,719 INFO L78 Accepts]: Start accepts. Automaton has 35970 states and 98784 transitions. Word has length 293 [2022-01-18 11:23:14,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:14,719 INFO L470 AbstractCegarLoop]: Abstraction has 35970 states and 98784 transitions. [2022-01-18 11:23:14,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:14,720 INFO L276 IsEmpty]: Start isEmpty. Operand 35970 states and 98784 transitions. [2022-01-18 11:23:14,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:14,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:14,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:14,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-01-18 11:23:14,770 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:14,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:14,770 INFO L85 PathProgramCache]: Analyzing trace with hash 817832263, now seen corresponding path program 11 times [2022-01-18 11:23:14,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:14,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076142757] [2022-01-18 11:23:14,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:14,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:15,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:15,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:15,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076142757] [2022-01-18 11:23:15,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076142757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:15,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:15,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:23:15,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452126609] [2022-01-18 11:23:15,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:15,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:23:15,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:15,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:23:15,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:23:15,076 INFO L87 Difference]: Start difference. First operand 35970 states and 98784 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:16,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:16,455 INFO L93 Difference]: Finished difference Result 40159 states and 109715 transitions. [2022-01-18 11:23:16,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:23:16,456 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:16,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:16,522 INFO L225 Difference]: With dead ends: 40159 [2022-01-18 11:23:16,523 INFO L226 Difference]: Without dead ends: 40159 [2022-01-18 11:23:16,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=597, Invalid=2595, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:23:16,523 INFO L933 BasicCegarLoop]: 806 mSDtfsCounter, 2662 mSDsluCounter, 9949 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 10625 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:16,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2662 Valid, 10625 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:23:16,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40159 states. [2022-01-18 11:23:17,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40159 to 35206. [2022-01-18 11:23:17,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35206 states, 35205 states have (on average 2.744610140605028) internal successors, (96624), 35205 states have internal predecessors, (96624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:17,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35206 states to 35206 states and 96624 transitions. [2022-01-18 11:23:17,137 INFO L78 Accepts]: Start accepts. Automaton has 35206 states and 96624 transitions. Word has length 293 [2022-01-18 11:23:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:17,137 INFO L470 AbstractCegarLoop]: Abstraction has 35206 states and 96624 transitions. [2022-01-18 11:23:17,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:17,137 INFO L276 IsEmpty]: Start isEmpty. Operand 35206 states and 96624 transitions. [2022-01-18 11:23:17,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:17,295 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:17,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:17,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-01-18 11:23:17,295 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:17,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:17,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1058208662, now seen corresponding path program 16 times [2022-01-18 11:23:17,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:17,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434388088] [2022-01-18 11:23:17,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:17,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:17,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:17,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:17,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434388088] [2022-01-18 11:23:17,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434388088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:17,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:17,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:23:17,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171617709] [2022-01-18 11:23:17,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:17,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:23:17,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:17,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:23:17,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:23:17,603 INFO L87 Difference]: Start difference. First operand 35206 states and 96624 transitions. Second operand has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:18,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:18,884 INFO L93 Difference]: Finished difference Result 43922 states and 119495 transitions. [2022-01-18 11:23:18,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:23:18,885 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:18,958 INFO L225 Difference]: With dead ends: 43922 [2022-01-18 11:23:18,958 INFO L226 Difference]: Without dead ends: 43922 [2022-01-18 11:23:18,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=597, Invalid=2595, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:23:18,959 INFO L933 BasicCegarLoop]: 792 mSDtfsCounter, 2743 mSDsluCounter, 9807 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 10469 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:18,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2743 Valid, 10469 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:23:19,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43922 states. [2022-01-18 11:23:19,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43922 to 34366. [2022-01-18 11:23:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34366 states, 34365 states have (on average 2.740346282554925) internal successors, (94172), 34365 states have internal predecessors, (94172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34366 states to 34366 states and 94172 transitions. [2022-01-18 11:23:19,686 INFO L78 Accepts]: Start accepts. Automaton has 34366 states and 94172 transitions. Word has length 293 [2022-01-18 11:23:19,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:19,686 INFO L470 AbstractCegarLoop]: Abstraction has 34366 states and 94172 transitions. [2022-01-18 11:23:19,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.72) internal successors, (293), 25 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 34366 states and 94172 transitions. [2022-01-18 11:23:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:19,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:19,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:19,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-01-18 11:23:19,734 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:19,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:19,734 INFO L85 PathProgramCache]: Analyzing trace with hash -401600095, now seen corresponding path program 12 times [2022-01-18 11:23:19,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:19,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025466217] [2022-01-18 11:23:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:19,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:19,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:19,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025466217] [2022-01-18 11:23:19,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025466217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:19,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:19,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:23:19,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764684163] [2022-01-18 11:23:19,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:19,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:23:19,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:19,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:23:19,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:23:19,906 INFO L87 Difference]: Start difference. First operand 34366 states and 94172 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:21,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:21,323 INFO L93 Difference]: Finished difference Result 93945 states and 257645 transitions. [2022-01-18 11:23:21,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:23:21,323 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:21,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:21,493 INFO L225 Difference]: With dead ends: 93945 [2022-01-18 11:23:21,493 INFO L226 Difference]: Without dead ends: 93945 [2022-01-18 11:23:21,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=655, Invalid=2315, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:23:21,494 INFO L933 BasicCegarLoop]: 971 mSDtfsCounter, 3244 mSDsluCounter, 8495 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3244 SdHoareTripleChecker+Valid, 9323 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:21,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3244 Valid, 9323 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:23:21,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93945 states. [2022-01-18 11:23:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93945 to 35877. [2022-01-18 11:23:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35877 states, 35876 states have (on average 2.755825621585461) internal successors, (98868), 35876 states have internal predecessors, (98868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:22,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35877 states to 35877 states and 98868 transitions. [2022-01-18 11:23:22,492 INFO L78 Accepts]: Start accepts. Automaton has 35877 states and 98868 transitions. Word has length 293 [2022-01-18 11:23:22,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:22,492 INFO L470 AbstractCegarLoop]: Abstraction has 35877 states and 98868 transitions. [2022-01-18 11:23:22,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:22,493 INFO L276 IsEmpty]: Start isEmpty. Operand 35877 states and 98868 transitions. [2022-01-18 11:23:22,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:22,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:22,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:22,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-01-18 11:23:22,546 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:22,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:22,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1895682044, now seen corresponding path program 17 times [2022-01-18 11:23:22,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:22,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098588579] [2022-01-18 11:23:22,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:22,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:22,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:22,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098588579] [2022-01-18 11:23:22,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098588579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:22,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:22,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:23:22,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000030441] [2022-01-18 11:23:22,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:22,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:23:22,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:22,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:23:22,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:23:22,722 INFO L87 Difference]: Start difference. First operand 35877 states and 98868 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:24,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:24,297 INFO L93 Difference]: Finished difference Result 96817 states and 265483 transitions. [2022-01-18 11:23:24,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:23:24,297 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:24,494 INFO L225 Difference]: With dead ends: 96817 [2022-01-18 11:23:24,494 INFO L226 Difference]: Without dead ends: 96817 [2022-01-18 11:23:24,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=647, Invalid=2323, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:23:24,495 INFO L933 BasicCegarLoop]: 963 mSDtfsCounter, 2925 mSDsluCounter, 8840 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2925 SdHoareTripleChecker+Valid, 9688 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:24,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2925 Valid, 9688 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:23:24,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96817 states. [2022-01-18 11:23:25,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96817 to 35041. [2022-01-18 11:23:25,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35041 states, 35040 states have (on average 2.7451198630136986) internal successors, (96189), 35040 states have internal predecessors, (96189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:25,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35041 states to 35041 states and 96189 transitions. [2022-01-18 11:23:25,577 INFO L78 Accepts]: Start accepts. Automaton has 35041 states and 96189 transitions. Word has length 293 [2022-01-18 11:23:25,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:25,577 INFO L470 AbstractCegarLoop]: Abstraction has 35041 states and 96189 transitions. [2022-01-18 11:23:25,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:25,578 INFO L276 IsEmpty]: Start isEmpty. Operand 35041 states and 96189 transitions. [2022-01-18 11:23:25,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:25,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:25,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:25,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-01-18 11:23:25,625 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:25,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:25,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1969722672, now seen corresponding path program 18 times [2022-01-18 11:23:25,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:25,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572952471] [2022-01-18 11:23:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:25,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:25,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:25,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572952471] [2022-01-18 11:23:25,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572952471] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:25,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:25,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:23:25,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425621244] [2022-01-18 11:23:25,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:25,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:23:25,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:25,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:23:25,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:23:25,812 INFO L87 Difference]: Start difference. First operand 35041 states and 96189 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:27,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:27,177 INFO L93 Difference]: Finished difference Result 71744 states and 196397 transitions. [2022-01-18 11:23:27,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:23:27,177 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:27,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:27,295 INFO L225 Difference]: With dead ends: 71744 [2022-01-18 11:23:27,295 INFO L226 Difference]: Without dead ends: 71744 [2022-01-18 11:23:27,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=576, Invalid=2076, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:23:27,296 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 2741 mSDsluCounter, 7108 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2741 SdHoareTripleChecker+Valid, 7812 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:27,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2741 Valid, 7812 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:27,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71744 states. [2022-01-18 11:23:27,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71744 to 34402. [2022-01-18 11:23:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34402 states, 34401 states have (on average 2.7403563849888086) internal successors, (94271), 34401 states have internal predecessors, (94271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:28,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34402 states to 34402 states and 94271 transitions. [2022-01-18 11:23:28,008 INFO L78 Accepts]: Start accepts. Automaton has 34402 states and 94271 transitions. Word has length 293 [2022-01-18 11:23:28,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:28,008 INFO L470 AbstractCegarLoop]: Abstraction has 34402 states and 94271 transitions. [2022-01-18 11:23:28,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:28,008 INFO L276 IsEmpty]: Start isEmpty. Operand 34402 states and 94271 transitions. [2022-01-18 11:23:28,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:28,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:28,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:28,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-01-18 11:23:28,056 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:28,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1345291999, now seen corresponding path program 13 times [2022-01-18 11:23:28,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:28,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233419920] [2022-01-18 11:23:28,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:28,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:28,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:28,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233419920] [2022-01-18 11:23:28,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233419920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:28,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:28,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:23:28,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110618500] [2022-01-18 11:23:28,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:28,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:23:28,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:28,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:23:28,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:23:28,347 INFO L87 Difference]: Start difference. First operand 34402 states and 94271 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:29,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:29,896 INFO L93 Difference]: Finished difference Result 97919 states and 268549 transitions. [2022-01-18 11:23:29,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:23:29,896 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:29,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:30,079 INFO L225 Difference]: With dead ends: 97919 [2022-01-18 11:23:30,079 INFO L226 Difference]: Without dead ends: 97919 [2022-01-18 11:23:30,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=693, Invalid=2499, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:23:30,080 INFO L933 BasicCegarLoop]: 955 mSDtfsCounter, 2970 mSDsluCounter, 9470 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 10285 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:30,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2970 Valid, 10285 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1981 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:23:30,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97919 states. [2022-01-18 11:23:31,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97919 to 35810. [2022-01-18 11:23:31,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35810 states, 35809 states have (on average 2.7560110586724007) internal successors, (98690), 35809 states have internal predecessors, (98690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:31,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35810 states to 35810 states and 98690 transitions. [2022-01-18 11:23:31,148 INFO L78 Accepts]: Start accepts. Automaton has 35810 states and 98690 transitions. Word has length 293 [2022-01-18 11:23:31,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:31,149 INFO L470 AbstractCegarLoop]: Abstraction has 35810 states and 98690 transitions. [2022-01-18 11:23:31,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:31,149 INFO L276 IsEmpty]: Start isEmpty. Operand 35810 states and 98690 transitions. [2022-01-18 11:23:31,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:31,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:31,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:31,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-01-18 11:23:31,202 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:31,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1455593348, now seen corresponding path program 19 times [2022-01-18 11:23:31,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:31,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556384662] [2022-01-18 11:23:31,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:31,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:31,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:31,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:31,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556384662] [2022-01-18 11:23:31,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556384662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:31,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:31,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:23:31,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055860996] [2022-01-18 11:23:31,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:31,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:23:31,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:31,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:23:31,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:23:31,383 INFO L87 Difference]: Start difference. First operand 35810 states and 98690 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:33,036 INFO L93 Difference]: Finished difference Result 93339 states and 256197 transitions. [2022-01-18 11:23:33,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:23:33,037 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:33,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:33,215 INFO L225 Difference]: With dead ends: 93339 [2022-01-18 11:23:33,215 INFO L226 Difference]: Without dead ends: 93339 [2022-01-18 11:23:33,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=714, Invalid=2592, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:23:33,215 INFO L933 BasicCegarLoop]: 949 mSDtfsCounter, 3045 mSDsluCounter, 8416 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 9259 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:33,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3045 Valid, 9259 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:23:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93339 states. [2022-01-18 11:23:34,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93339 to 35014. [2022-01-18 11:23:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35014 states, 35013 states have (on average 2.745437408962385) internal successors, (96126), 35013 states have internal predecessors, (96126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35014 states to 35014 states and 96126 transitions. [2022-01-18 11:23:34,271 INFO L78 Accepts]: Start accepts. Automaton has 35014 states and 96126 transitions. Word has length 293 [2022-01-18 11:23:34,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:34,271 INFO L470 AbstractCegarLoop]: Abstraction has 35014 states and 96126 transitions. [2022-01-18 11:23:34,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:34,271 INFO L276 IsEmpty]: Start isEmpty. Operand 35014 states and 96126 transitions. [2022-01-18 11:23:34,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:34,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:34,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:34,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-01-18 11:23:34,320 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:34,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:34,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1037768967, now seen corresponding path program 14 times [2022-01-18 11:23:34,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:34,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143482005] [2022-01-18 11:23:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:34,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:34,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:34,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:34,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143482005] [2022-01-18 11:23:34,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143482005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:34,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:34,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 11:23:34,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807181449] [2022-01-18 11:23:34,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:34,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 11:23:34,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:34,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 11:23:34,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 11:23:34,471 INFO L87 Difference]: Start difference. First operand 35014 states and 96126 transitions. Second operand has 18 states, 18 states have (on average 16.27777777777778) internal successors, (293), 18 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:35,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:35,691 INFO L93 Difference]: Finished difference Result 71461 states and 195717 transitions. [2022-01-18 11:23:35,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:23:35,692 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 16.27777777777778) internal successors, (293), 18 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:35,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:35,827 INFO L225 Difference]: With dead ends: 71461 [2022-01-18 11:23:35,827 INFO L226 Difference]: Without dead ends: 71461 [2022-01-18 11:23:35,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=505, Invalid=1945, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:23:35,828 INFO L933 BasicCegarLoop]: 829 mSDtfsCounter, 2539 mSDsluCounter, 8132 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 8848 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:35,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2539 Valid, 8848 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:23:35,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71461 states. [2022-01-18 11:23:36,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71461 to 34398. [2022-01-18 11:23:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34398 states, 34397 states have (on average 2.740355263540425) internal successors, (94260), 34397 states have internal predecessors, (94260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:36,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34398 states to 34398 states and 94260 transitions. [2022-01-18 11:23:36,761 INFO L78 Accepts]: Start accepts. Automaton has 34398 states and 94260 transitions. Word has length 293 [2022-01-18 11:23:36,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:36,761 INFO L470 AbstractCegarLoop]: Abstraction has 34398 states and 94260 transitions. [2022-01-18 11:23:36,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 16.27777777777778) internal successors, (293), 18 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:36,762 INFO L276 IsEmpty]: Start isEmpty. Operand 34398 states and 94260 transitions. [2022-01-18 11:23:36,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:36,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:36,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:36,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-01-18 11:23:36,807 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:36,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:36,807 INFO L85 PathProgramCache]: Analyzing trace with hash 618542019, now seen corresponding path program 15 times [2022-01-18 11:23:36,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:36,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134228745] [2022-01-18 11:23:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:36,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:36,999 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:36,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:36,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134228745] [2022-01-18 11:23:36,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134228745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:36,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:36,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:23:36,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297784951] [2022-01-18 11:23:36,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:37,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:23:37,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:37,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:23:37,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:23:37,000 INFO L87 Difference]: Start difference. First operand 34398 states and 94260 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:38,751 INFO L93 Difference]: Finished difference Result 97523 states and 267460 transitions. [2022-01-18 11:23:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:23:38,751 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:38,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:38,926 INFO L225 Difference]: With dead ends: 97523 [2022-01-18 11:23:38,926 INFO L226 Difference]: Without dead ends: 97523 [2022-01-18 11:23:38,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=839, Invalid=2943, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:23:38,927 INFO L933 BasicCegarLoop]: 1019 mSDtfsCounter, 3506 mSDsluCounter, 9170 mSDsCounter, 0 mSdLazyCounter, 1938 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3506 SdHoareTripleChecker+Valid, 10036 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:38,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3506 Valid, 10036 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1938 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:23:39,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97523 states. [2022-01-18 11:23:39,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97523 to 35878. [2022-01-18 11:23:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35878 states, 35877 states have (on average 2.756891601861917) internal successors, (98909), 35877 states have internal predecessors, (98909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:40,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35878 states to 35878 states and 98909 transitions. [2022-01-18 11:23:40,020 INFO L78 Accepts]: Start accepts. Automaton has 35878 states and 98909 transitions. Word has length 293 [2022-01-18 11:23:40,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:40,020 INFO L470 AbstractCegarLoop]: Abstraction has 35878 states and 98909 transitions. [2022-01-18 11:23:40,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:40,021 INFO L276 IsEmpty]: Start isEmpty. Operand 35878 states and 98909 transitions. [2022-01-18 11:23:40,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:40,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:40,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:40,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-01-18 11:23:40,073 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:40,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:40,073 INFO L85 PathProgramCache]: Analyzing trace with hash -875539930, now seen corresponding path program 20 times [2022-01-18 11:23:40,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:40,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497862863] [2022-01-18 11:23:40,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:40,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:40,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:40,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497862863] [2022-01-18 11:23:40,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497862863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:40,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:40,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:23:40,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913884243] [2022-01-18 11:23:40,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:40,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:23:40,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:40,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:23:40,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:23:40,251 INFO L87 Difference]: Start difference. First operand 35878 states and 98909 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:41,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:41,982 INFO L93 Difference]: Finished difference Result 92943 states and 255108 transitions. [2022-01-18 11:23:41,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:23:41,982 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:41,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:42,184 INFO L225 Difference]: With dead ends: 92943 [2022-01-18 11:23:42,184 INFO L226 Difference]: Without dead ends: 92943 [2022-01-18 11:23:42,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=809, Invalid=2851, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:23:42,185 INFO L933 BasicCegarLoop]: 996 mSDtfsCounter, 3414 mSDsluCounter, 8933 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3414 SdHoareTripleChecker+Valid, 9809 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:42,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3414 Valid, 9809 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:23:42,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92943 states. [2022-01-18 11:23:43,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92943 to 35210. [2022-01-18 11:23:43,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35210 states, 35209 states have (on average 2.7461444517026896) internal successors, (96689), 35209 states have internal predecessors, (96689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35210 states to 35210 states and 96689 transitions. [2022-01-18 11:23:43,360 INFO L78 Accepts]: Start accepts. Automaton has 35210 states and 96689 transitions. Word has length 293 [2022-01-18 11:23:43,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:43,360 INFO L470 AbstractCegarLoop]: Abstraction has 35210 states and 96689 transitions. [2022-01-18 11:23:43,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 35210 states and 96689 transitions. [2022-01-18 11:23:43,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:43,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:43,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:43,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-01-18 11:23:43,417 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:43,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:43,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1293364311, now seen corresponding path program 16 times [2022-01-18 11:23:43,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:43,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936642972] [2022-01-18 11:23:43,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:43,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:43,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:43,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:43,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936642972] [2022-01-18 11:23:43,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936642972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:43,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:43,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:23:43,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595341617] [2022-01-18 11:23:43,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:43,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:23:43,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:43,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:23:43,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:23:43,601 INFO L87 Difference]: Start difference. First operand 35210 states and 96689 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:44,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:44,983 INFO L93 Difference]: Finished difference Result 72141 states and 197735 transitions. [2022-01-18 11:23:44,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:23:44,983 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:44,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:45,119 INFO L225 Difference]: With dead ends: 72141 [2022-01-18 11:23:45,119 INFO L226 Difference]: Without dead ends: 72141 [2022-01-18 11:23:45,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=701, Invalid=2491, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:23:45,120 INFO L933 BasicCegarLoop]: 894 mSDtfsCounter, 2721 mSDsluCounter, 8353 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2721 SdHoareTripleChecker+Valid, 9115 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:45,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2721 Valid, 9115 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:23:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72141 states. [2022-01-18 11:23:45,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72141 to 35174. [2022-01-18 11:23:45,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35174 states, 35173 states have (on average 2.7456856111221675) internal successors, (96574), 35173 states have internal predecessors, (96574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:46,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35174 states to 35174 states and 96574 transitions. [2022-01-18 11:23:46,062 INFO L78 Accepts]: Start accepts. Automaton has 35174 states and 96574 transitions. Word has length 293 [2022-01-18 11:23:46,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:46,062 INFO L470 AbstractCegarLoop]: Abstraction has 35174 states and 96574 transitions. [2022-01-18 11:23:46,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:46,062 INFO L276 IsEmpty]: Start isEmpty. Operand 35174 states and 96574 transitions. [2022-01-18 11:23:46,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:46,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:46,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:46,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-01-18 11:23:46,113 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:46,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:46,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1639840349, now seen corresponding path program 17 times [2022-01-18 11:23:46,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:46,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538983700] [2022-01-18 11:23:46,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:46,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:46,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:46,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538983700] [2022-01-18 11:23:46,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538983700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:46,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:46,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:23:46,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139234695] [2022-01-18 11:23:46,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:46,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:23:46,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:46,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:23:46,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:23:46,314 INFO L87 Difference]: Start difference. First operand 35174 states and 96574 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:48,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:48,022 INFO L93 Difference]: Finished difference Result 74676 states and 203920 transitions. [2022-01-18 11:23:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:23:48,022 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:48,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:48,166 INFO L225 Difference]: With dead ends: 74676 [2022-01-18 11:23:48,166 INFO L226 Difference]: Without dead ends: 74676 [2022-01-18 11:23:48,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=707, Invalid=2485, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:23:48,167 INFO L933 BasicCegarLoop]: 927 mSDtfsCounter, 3052 mSDsluCounter, 8376 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 9156 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:48,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3052 Valid, 9156 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:23:48,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74676 states. [2022-01-18 11:23:48,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74676 to 34598. [2022-01-18 11:23:48,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34598 states, 34597 states have (on average 2.741104720062433) internal successors, (94834), 34597 states have internal predecessors, (94834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:49,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34598 states to 34598 states and 94834 transitions. [2022-01-18 11:23:49,248 INFO L78 Accepts]: Start accepts. Automaton has 34598 states and 94834 transitions. Word has length 293 [2022-01-18 11:23:49,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:49,249 INFO L470 AbstractCegarLoop]: Abstraction has 34598 states and 94834 transitions. [2022-01-18 11:23:49,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:49,249 INFO L276 IsEmpty]: Start isEmpty. Operand 34598 states and 94834 transitions. [2022-01-18 11:23:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:49,301 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:49,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:49,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-01-18 11:23:49,302 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash 248220193, now seen corresponding path program 18 times [2022-01-18 11:23:49,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:49,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858127362] [2022-01-18 11:23:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:49,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:49,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:49,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:49,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858127362] [2022-01-18 11:23:49,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858127362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:49,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:49,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:23:49,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030634483] [2022-01-18 11:23:49,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:49,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:23:49,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:49,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:23:49,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:23:49,495 INFO L87 Difference]: Start difference. First operand 34598 states and 94834 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:51,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:51,010 INFO L93 Difference]: Finished difference Result 94929 states and 260375 transitions. [2022-01-18 11:23:51,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:23:51,010 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:51,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:51,198 INFO L225 Difference]: With dead ends: 94929 [2022-01-18 11:23:51,198 INFO L226 Difference]: Without dead ends: 94929 [2022-01-18 11:23:51,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=674, Invalid=2406, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:23:51,199 INFO L933 BasicCegarLoop]: 959 mSDtfsCounter, 2810 mSDsluCounter, 8457 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 9282 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:51,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2810 Valid, 9282 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:23:51,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94929 states. [2022-01-18 11:23:52,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94929 to 36085. [2022-01-18 11:23:52,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36085 states, 36084 states have (on average 2.756457155525995) internal successors, (99464), 36084 states have internal predecessors, (99464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36085 states to 36085 states and 99464 transitions. [2022-01-18 11:23:52,319 INFO L78 Accepts]: Start accepts. Automaton has 36085 states and 99464 transitions. Word has length 293 [2022-01-18 11:23:52,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:52,319 INFO L470 AbstractCegarLoop]: Abstraction has 36085 states and 99464 transitions. [2022-01-18 11:23:52,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:52,319 INFO L276 IsEmpty]: Start isEmpty. Operand 36085 states and 99464 transitions. [2022-01-18 11:23:52,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:52,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:52,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:52,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-01-18 11:23:52,372 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:52,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:52,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1245861756, now seen corresponding path program 21 times [2022-01-18 11:23:52,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:52,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499521031] [2022-01-18 11:23:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:52,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:52,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:52,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499521031] [2022-01-18 11:23:52,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499521031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:52,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:52,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:23:52,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131121321] [2022-01-18 11:23:52,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:52,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:23:52,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:52,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:23:52,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:23:52,551 INFO L87 Difference]: Start difference. First operand 36085 states and 99464 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:54,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:54,108 INFO L93 Difference]: Finished difference Result 97801 states and 268213 transitions. [2022-01-18 11:23:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:23:54,109 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:54,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:54,312 INFO L225 Difference]: With dead ends: 97801 [2022-01-18 11:23:54,312 INFO L226 Difference]: Without dead ends: 97801 [2022-01-18 11:23:54,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=736, Invalid=2686, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:23:54,313 INFO L933 BasicCegarLoop]: 982 mSDtfsCounter, 3090 mSDsluCounter, 8548 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3090 SdHoareTripleChecker+Valid, 9423 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:54,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3090 Valid, 9423 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:23:54,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97801 states. [2022-01-18 11:23:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97801 to 35249. [2022-01-18 11:23:55,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35249 states, 35248 states have (on average 2.7458295506128008) internal successors, (96785), 35248 states have internal predecessors, (96785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:55,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35249 states to 35249 states and 96785 transitions. [2022-01-18 11:23:55,463 INFO L78 Accepts]: Start accepts. Automaton has 35249 states and 96785 transitions. Word has length 293 [2022-01-18 11:23:55,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:55,463 INFO L470 AbstractCegarLoop]: Abstraction has 35249 states and 96785 transitions. [2022-01-18 11:23:55,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 35249 states and 96785 transitions. [2022-01-18 11:23:55,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:55,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:55,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:55,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-01-18 11:23:55,514 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:55,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:55,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1675424336, now seen corresponding path program 22 times [2022-01-18 11:23:55,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:55,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917901300] [2022-01-18 11:23:55,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:55,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:55,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:55,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:55,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917901300] [2022-01-18 11:23:55,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917901300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:55,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:55,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:23:55,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353067582] [2022-01-18 11:23:55,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:55,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:23:55,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:55,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:23:55,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:23:55,695 INFO L87 Difference]: Start difference. First operand 35249 states and 96785 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:56,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:56,838 INFO L93 Difference]: Finished difference Result 72728 states and 199127 transitions. [2022-01-18 11:23:56,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:23:56,839 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:56,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:56,978 INFO L225 Difference]: With dead ends: 72728 [2022-01-18 11:23:56,979 INFO L226 Difference]: Without dead ends: 72728 [2022-01-18 11:23:56,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=596, Invalid=2160, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:23:56,979 INFO L933 BasicCegarLoop]: 813 mSDtfsCounter, 2580 mSDsluCounter, 7032 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 7760 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:56,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2580 Valid, 7760 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:57,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72728 states. [2022-01-18 11:23:57,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72728 to 34610. [2022-01-18 11:23:57,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34610 states, 34609 states have (on average 2.741107804328354) internal successors, (94867), 34609 states have internal predecessors, (94867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34610 states to 34610 states and 94867 transitions. [2022-01-18 11:23:57,934 INFO L78 Accepts]: Start accepts. Automaton has 34610 states and 94867 transitions. Word has length 293 [2022-01-18 11:23:57,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:57,934 INFO L470 AbstractCegarLoop]: Abstraction has 34610 states and 94867 transitions. [2022-01-18 11:23:57,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 34610 states and 94867 transitions. [2022-01-18 11:23:57,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:23:57,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:57,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:57,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-01-18 11:23:57,983 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:57,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:57,984 INFO L85 PathProgramCache]: Analyzing trace with hash -695471711, now seen corresponding path program 19 times [2022-01-18 11:23:57,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:57,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878036303] [2022-01-18 11:23:57,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:57,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:23:58,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:58,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878036303] [2022-01-18 11:23:58,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878036303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:58,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:58,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:23:58,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406628996] [2022-01-18 11:23:58,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:58,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:23:58,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:58,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:23:58,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:23:58,161 INFO L87 Difference]: Start difference. First operand 34610 states and 94867 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:59,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:59,615 INFO L93 Difference]: Finished difference Result 98799 states and 270981 transitions. [2022-01-18 11:23:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:23:59,615 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:23:59,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:59,832 INFO L225 Difference]: With dead ends: 98799 [2022-01-18 11:23:59,832 INFO L226 Difference]: Without dead ends: 98799 [2022-01-18 11:23:59,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=609, Invalid=2147, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:23:59,832 INFO L933 BasicCegarLoop]: 941 mSDtfsCounter, 2901 mSDsluCounter, 8067 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2901 SdHoareTripleChecker+Valid, 8889 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:59,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2901 Valid, 8889 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:23:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98799 states. [2022-01-18 11:24:00,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98799 to 36018. [2022-01-18 11:24:00,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36018 states, 36017 states have (on average 2.7566426965044286) internal successors, (99286), 36017 states have internal predecessors, (99286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:00,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36018 states to 36018 states and 99286 transitions. [2022-01-18 11:24:00,916 INFO L78 Accepts]: Start accepts. Automaton has 36018 states and 99286 transitions. Word has length 293 [2022-01-18 11:24:00,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:00,916 INFO L470 AbstractCegarLoop]: Abstraction has 36018 states and 99286 transitions. [2022-01-18 11:24:00,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:00,916 INFO L276 IsEmpty]: Start isEmpty. Operand 36018 states and 99286 transitions. [2022-01-18 11:24:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:00,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:00,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:00,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-01-18 11:24:00,968 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:00,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:00,968 INFO L85 PathProgramCache]: Analyzing trace with hash 2105413636, now seen corresponding path program 23 times [2022-01-18 11:24:00,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:00,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158374350] [2022-01-18 11:24:00,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:00,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:01,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:01,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:01,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158374350] [2022-01-18 11:24:01,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158374350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:01,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:01,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:24:01,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212284173] [2022-01-18 11:24:01,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:01,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:24:01,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:01,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:24:01,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:24:01,144 INFO L87 Difference]: Start difference. First operand 36018 states and 99286 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:02,687 INFO L93 Difference]: Finished difference Result 94219 states and 258629 transitions. [2022-01-18 11:24:02,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:24:02,688 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:03,184 INFO L225 Difference]: With dead ends: 94219 [2022-01-18 11:24:03,185 INFO L226 Difference]: Without dead ends: 94219 [2022-01-18 11:24:03,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=719, Invalid=2587, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:24:03,185 INFO L933 BasicCegarLoop]: 966 mSDtfsCounter, 3694 mSDsluCounter, 8524 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3694 SdHoareTripleChecker+Valid, 9389 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:03,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3694 Valid, 9389 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:24:03,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94219 states. [2022-01-18 11:24:03,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94219 to 35222. [2022-01-18 11:24:03,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35222 states, 35221 states have (on average 2.746145765310468) internal successors, (96722), 35221 states have internal predecessors, (96722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:03,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35222 states to 35222 states and 96722 transitions. [2022-01-18 11:24:03,984 INFO L78 Accepts]: Start accepts. Automaton has 35222 states and 96722 transitions. Word has length 293 [2022-01-18 11:24:03,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:03,984 INFO L470 AbstractCegarLoop]: Abstraction has 35222 states and 96722 transitions. [2022-01-18 11:24:03,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:03,985 INFO L276 IsEmpty]: Start isEmpty. Operand 35222 states and 96722 transitions. [2022-01-18 11:24:04,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:04,031 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:04,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:04,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-01-18 11:24:04,032 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:04,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:04,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1687589255, now seen corresponding path program 20 times [2022-01-18 11:24:04,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:04,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489997726] [2022-01-18 11:24:04,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:04,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:04,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:04,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489997726] [2022-01-18 11:24:04,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489997726] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:04,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:04,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:24:04,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200669865] [2022-01-18 11:24:04,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:04,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:24:04,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:04,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:24:04,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:24:04,385 INFO L87 Difference]: Start difference. First operand 35222 states and 96722 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:05,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:05,544 INFO L93 Difference]: Finished difference Result 72341 states and 198149 transitions. [2022-01-18 11:24:05,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:24:05,544 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:05,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:05,686 INFO L225 Difference]: With dead ends: 72341 [2022-01-18 11:24:05,687 INFO L226 Difference]: Without dead ends: 72341 [2022-01-18 11:24:05,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=552, Invalid=1998, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:24:05,687 INFO L933 BasicCegarLoop]: 815 mSDtfsCounter, 2789 mSDsluCounter, 7595 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2789 SdHoareTripleChecker+Valid, 8311 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:05,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2789 Valid, 8311 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1526 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:05,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72341 states. [2022-01-18 11:24:06,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72341 to 34606. [2022-01-18 11:24:06,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34606 states, 34605 states have (on average 2.7411067764773875) internal successors, (94856), 34605 states have internal predecessors, (94856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:06,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34606 states to 34606 states and 94856 transitions. [2022-01-18 11:24:06,581 INFO L78 Accepts]: Start accepts. Automaton has 34606 states and 94856 transitions. Word has length 293 [2022-01-18 11:24:06,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:06,581 INFO L470 AbstractCegarLoop]: Abstraction has 34606 states and 94856 transitions. [2022-01-18 11:24:06,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:06,581 INFO L276 IsEmpty]: Start isEmpty. Operand 34606 states and 94856 transitions. [2022-01-18 11:24:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:06,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:06,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:06,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-01-18 11:24:06,630 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:06,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:06,630 INFO L85 PathProgramCache]: Analyzing trace with hash 591410115, now seen corresponding path program 21 times [2022-01-18 11:24:06,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:06,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104531821] [2022-01-18 11:24:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:06,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:06,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:06,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104531821] [2022-01-18 11:24:06,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104531821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:06,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:06,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:06,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650810269] [2022-01-18 11:24:06,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:06,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:06,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:06,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:06,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:06,808 INFO L87 Difference]: Start difference. First operand 34606 states and 94856 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:08,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:08,737 INFO L93 Difference]: Finished difference Result 120166 states and 329808 transitions. [2022-01-18 11:24:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:24:08,738 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:08,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:08,996 INFO L225 Difference]: With dead ends: 120166 [2022-01-18 11:24:08,997 INFO L226 Difference]: Without dead ends: 120166 [2022-01-18 11:24:08,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:24:08,997 INFO L933 BasicCegarLoop]: 1117 mSDtfsCounter, 3083 mSDsluCounter, 9013 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3083 SdHoareTripleChecker+Valid, 9979 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:08,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3083 Valid, 9979 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:24:09,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120166 states. [2022-01-18 11:24:10,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120166 to 36287. [2022-01-18 11:24:10,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36287 states, 36286 states have (on average 2.756958606625145) internal successors, (100039), 36286 states have internal predecessors, (100039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:10,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36287 states to 36287 states and 100039 transitions. [2022-01-18 11:24:10,292 INFO L78 Accepts]: Start accepts. Automaton has 36287 states and 100039 transitions. Word has length 293 [2022-01-18 11:24:10,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:10,292 INFO L470 AbstractCegarLoop]: Abstraction has 36287 states and 100039 transitions. [2022-01-18 11:24:10,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:10,292 INFO L276 IsEmpty]: Start isEmpty. Operand 36287 states and 100039 transitions. [2022-01-18 11:24:10,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:10,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:10,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:10,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-01-18 11:24:10,343 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:10,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:10,343 INFO L85 PathProgramCache]: Analyzing trace with hash -902671834, now seen corresponding path program 24 times [2022-01-18 11:24:10,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:10,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606890162] [2022-01-18 11:24:10,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:10,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:10,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:10,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606890162] [2022-01-18 11:24:10,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606890162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:10,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:10,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:24:10,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340098216] [2022-01-18 11:24:10,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:10,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:24:10,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:10,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:24:10,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:24:10,524 INFO L87 Difference]: Start difference. First operand 36287 states and 100039 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:12,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:12,197 INFO L93 Difference]: Finished difference Result 123027 states and 337633 transitions. [2022-01-18 11:24:12,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:24:12,198 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:12,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:12,745 INFO L225 Difference]: With dead ends: 123027 [2022-01-18 11:24:12,745 INFO L226 Difference]: Without dead ends: 123027 [2022-01-18 11:24:12,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=883, Invalid=3149, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:24:12,746 INFO L933 BasicCegarLoop]: 1158 mSDtfsCounter, 3957 mSDsluCounter, 9115 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3957 SdHoareTripleChecker+Valid, 10147 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:12,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3957 Valid, 10147 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:24:12,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123027 states. [2022-01-18 11:24:13,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123027 to 35451. [2022-01-18 11:24:13,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35451 states, 35450 states have (on average 2.746403385049365) internal successors, (97360), 35450 states have internal predecessors, (97360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:13,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35451 states to 35451 states and 97360 transitions. [2022-01-18 11:24:13,993 INFO L78 Accepts]: Start accepts. Automaton has 35451 states and 97360 transitions. Word has length 293 [2022-01-18 11:24:13,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:13,993 INFO L470 AbstractCegarLoop]: Abstraction has 35451 states and 97360 transitions. [2022-01-18 11:24:13,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:13,993 INFO L276 IsEmpty]: Start isEmpty. Operand 35451 states and 97360 transitions. [2022-01-18 11:24:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:14,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:14,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:14,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-01-18 11:24:14,040 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:14,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:14,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1332234414, now seen corresponding path program 25 times [2022-01-18 11:24:14,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:14,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651059618] [2022-01-18 11:24:14,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:14,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:14,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:14,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651059618] [2022-01-18 11:24:14,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651059618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:14,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:14,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:14,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066598531] [2022-01-18 11:24:14,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:14,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:14,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:14,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:14,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:14,221 INFO L87 Difference]: Start difference. First operand 35451 states and 97360 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:15,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:15,662 INFO L93 Difference]: Finished difference Result 99106 states and 271816 transitions. [2022-01-18 11:24:15,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:24:15,663 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:15,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:15,872 INFO L225 Difference]: With dead ends: 99106 [2022-01-18 11:24:15,872 INFO L226 Difference]: Without dead ends: 99106 [2022-01-18 11:24:15,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=727, Invalid=2579, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:24:15,872 INFO L933 BasicCegarLoop]: 1002 mSDtfsCounter, 2782 mSDsluCounter, 8251 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 9145 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:15,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2782 Valid, 9145 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:24:16,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99106 states. [2022-01-18 11:24:16,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99106 to 35415. [2022-01-18 11:24:17,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35415 states, 35414 states have (on average 2.7459479301970973) internal successors, (97245), 35414 states have internal predecessors, (97245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:17,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35415 states to 35415 states and 97245 transitions. [2022-01-18 11:24:17,083 INFO L78 Accepts]: Start accepts. Automaton has 35415 states and 97245 transitions. Word has length 293 [2022-01-18 11:24:17,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:17,084 INFO L470 AbstractCegarLoop]: Abstraction has 35415 states and 97245 transitions. [2022-01-18 11:24:17,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:17,084 INFO L276 IsEmpty]: Start isEmpty. Operand 35415 states and 97245 transitions. [2022-01-18 11:24:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:17,139 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:17,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:17,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-01-18 11:24:17,139 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:17,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:17,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1526216116, now seen corresponding path program 26 times [2022-01-18 11:24:17,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:17,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006443856] [2022-01-18 11:24:17,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:17,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:17,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:17,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:17,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006443856] [2022-01-18 11:24:17,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006443856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:17,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:17,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:17,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093852319] [2022-01-18 11:24:17,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:17,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:17,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:17,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:17,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:17,345 INFO L87 Difference]: Start difference. First operand 35415 states and 97245 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:19,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:19,194 INFO L93 Difference]: Finished difference Result 100670 states and 275457 transitions. [2022-01-18 11:24:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:24:19,194 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:19,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:19,435 INFO L225 Difference]: With dead ends: 100670 [2022-01-18 11:24:19,435 INFO L226 Difference]: Without dead ends: 100670 [2022-01-18 11:24:19,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=758, Invalid=2664, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:24:19,436 INFO L933 BasicCegarLoop]: 1019 mSDtfsCounter, 2882 mSDsluCounter, 8577 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2882 SdHoareTripleChecker+Valid, 9478 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:19,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2882 Valid, 9478 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:24:19,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100670 states. [2022-01-18 11:24:20,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100670 to 34598. [2022-01-18 11:24:20,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34598 states, 34597 states have (on average 2.741104720062433) internal successors, (94834), 34597 states have internal predecessors, (94834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:20,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34598 states to 34598 states and 94834 transitions. [2022-01-18 11:24:20,596 INFO L78 Accepts]: Start accepts. Automaton has 34598 states and 94834 transitions. Word has length 293 [2022-01-18 11:24:20,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:20,597 INFO L470 AbstractCegarLoop]: Abstraction has 34598 states and 94834 transitions. [2022-01-18 11:24:20,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:20,597 INFO L276 IsEmpty]: Start isEmpty. Operand 34598 states and 94834 transitions. [2022-01-18 11:24:20,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:20,646 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:20,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:20,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-01-18 11:24:20,647 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:20,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:20,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1531818239, now seen corresponding path program 22 times [2022-01-18 11:24:20,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:20,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055904416] [2022-01-18 11:24:20,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:20,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:20,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:20,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055904416] [2022-01-18 11:24:20,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055904416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:20,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:20,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:20,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29075411] [2022-01-18 11:24:20,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:20,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:20,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:20,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:20,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:20,849 INFO L87 Difference]: Start difference. First operand 34598 states and 94834 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:22,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:22,015 INFO L93 Difference]: Finished difference Result 65388 states and 179194 transitions. [2022-01-18 11:24:22,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:24:22,015 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:22,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:22,138 INFO L225 Difference]: With dead ends: 65388 [2022-01-18 11:24:22,138 INFO L226 Difference]: Without dead ends: 65388 [2022-01-18 11:24:22,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=540, Invalid=2010, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:24:22,138 INFO L933 BasicCegarLoop]: 901 mSDtfsCounter, 2180 mSDsluCounter, 8419 mSDsCounter, 0 mSdLazyCounter, 1717 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 9200 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:22,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2180 Valid, 9200 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1717 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:22,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65388 states. [2022-01-18 11:24:22,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65388 to 36089. [2022-01-18 11:24:23,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36089 states, 36088 states have (on average 2.7564564398137885) internal successors, (99475), 36088 states have internal predecessors, (99475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:23,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36089 states to 36089 states and 99475 transitions. [2022-01-18 11:24:23,067 INFO L78 Accepts]: Start accepts. Automaton has 36089 states and 99475 transitions. Word has length 293 [2022-01-18 11:24:23,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:23,068 INFO L470 AbstractCegarLoop]: Abstraction has 36089 states and 99475 transitions. [2022-01-18 11:24:23,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:23,068 INFO L276 IsEmpty]: Start isEmpty. Operand 36089 states and 99475 transitions. [2022-01-18 11:24:23,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:23,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:23,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:23,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-01-18 11:24:23,115 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:23,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:23,116 INFO L85 PathProgramCache]: Analyzing trace with hash 37736290, now seen corresponding path program 27 times [2022-01-18 11:24:23,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:23,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574265232] [2022-01-18 11:24:23,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:23,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:23,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:23,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:23,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574265232] [2022-01-18 11:24:23,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574265232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:23,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:23,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:24:23,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721218973] [2022-01-18 11:24:23,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:23,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:24:23,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:23,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:24:23,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:24:23,286 INFO L87 Difference]: Start difference. First operand 36089 states and 99475 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:24,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:24,461 INFO L93 Difference]: Finished difference Result 68276 states and 187050 transitions. [2022-01-18 11:24:24,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:24:24,461 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:24,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:24,590 INFO L225 Difference]: With dead ends: 68276 [2022-01-18 11:24:24,590 INFO L226 Difference]: Without dead ends: 68276 [2022-01-18 11:24:24,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=593, Invalid=2269, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:24:24,591 INFO L933 BasicCegarLoop]: 933 mSDtfsCounter, 2517 mSDsluCounter, 8354 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 9190 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:24,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2517 Valid, 9190 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:24,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68276 states. [2022-01-18 11:24:25,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68276 to 35253. [2022-01-18 11:24:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35253 states, 35252 states have (on average 2.7458300238284354) internal successors, (96796), 35252 states have internal predecessors, (96796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35253 states to 35253 states and 96796 transitions. [2022-01-18 11:24:25,493 INFO L78 Accepts]: Start accepts. Automaton has 35253 states and 96796 transitions. Word has length 293 [2022-01-18 11:24:25,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:25,493 INFO L470 AbstractCegarLoop]: Abstraction has 35253 states and 96796 transitions. [2022-01-18 11:24:25,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 35253 states and 96796 transitions. [2022-01-18 11:24:25,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:25,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:25,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:25,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-01-18 11:24:25,541 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:25,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:25,541 INFO L85 PathProgramCache]: Analyzing trace with hash -391826290, now seen corresponding path program 28 times [2022-01-18 11:24:25,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:25,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725247455] [2022-01-18 11:24:25,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:25,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:25,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:25,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725247455] [2022-01-18 11:24:25,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725247455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:25,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:25,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:25,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308101819] [2022-01-18 11:24:25,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:25,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:25,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:25,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:25,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:25,720 INFO L87 Difference]: Start difference. First operand 35253 states and 96796 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:26,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:26,754 INFO L93 Difference]: Finished difference Result 43299 states and 118240 transitions. [2022-01-18 11:24:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:24:26,755 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:26,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:26,824 INFO L225 Difference]: With dead ends: 43299 [2022-01-18 11:24:26,824 INFO L226 Difference]: Without dead ends: 43299 [2022-01-18 11:24:26,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=470, Invalid=1786, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:24:26,824 INFO L933 BasicCegarLoop]: 765 mSDtfsCounter, 1946 mSDsluCounter, 6741 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 7430 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:26,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1946 Valid, 7430 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:24:26,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43299 states. [2022-01-18 11:24:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43299 to 34614. [2022-01-18 11:24:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34614 states, 34613 states have (on average 2.741108831941756) internal successors, (94878), 34613 states have internal predecessors, (94878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34614 states to 34614 states and 94878 transitions. [2022-01-18 11:24:27,418 INFO L78 Accepts]: Start accepts. Automaton has 34614 states and 94878 transitions. Word has length 293 [2022-01-18 11:24:27,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:27,418 INFO L470 AbstractCegarLoop]: Abstraction has 34614 states and 94878 transitions. [2022-01-18 11:24:27,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:27,418 INFO L276 IsEmpty]: Start isEmpty. Operand 34614 states and 94878 transitions. [2022-01-18 11:24:27,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:27,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:27,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:27,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-01-18 11:24:27,470 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:27,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:27,471 INFO L85 PathProgramCache]: Analyzing trace with hash 588126335, now seen corresponding path program 23 times [2022-01-18 11:24:27,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:27,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984048598] [2022-01-18 11:24:27,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:27,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:27,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:27,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:27,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984048598] [2022-01-18 11:24:27,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984048598] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:27,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:27,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:24:27,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368016566] [2022-01-18 11:24:27,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:27,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:24:27,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:27,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:24:27,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:24:27,644 INFO L87 Difference]: Start difference. First operand 34614 states and 94878 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:28,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:28,862 INFO L93 Difference]: Finished difference Result 68698 states and 188284 transitions. [2022-01-18 11:24:28,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:24:28,862 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:28,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:28,982 INFO L225 Difference]: With dead ends: 68698 [2022-01-18 11:24:28,982 INFO L226 Difference]: Without dead ends: 68698 [2022-01-18 11:24:28,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=494, Invalid=1858, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:24:28,983 INFO L933 BasicCegarLoop]: 837 mSDtfsCounter, 2367 mSDsluCounter, 8533 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 9261 SdHoareTripleChecker+Invalid, 1748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:28,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2367 Valid, 9261 Invalid, 1748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:24:29,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68698 states. [2022-01-18 11:24:29,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68698 to 36022. [2022-01-18 11:24:29,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36022 states, 36021 states have (on average 2.756641958857333) internal successors, (99297), 36021 states have internal predecessors, (99297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36022 states to 36022 states and 99297 transitions. [2022-01-18 11:24:29,936 INFO L78 Accepts]: Start accepts. Automaton has 36022 states and 99297 transitions. Word has length 293 [2022-01-18 11:24:29,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:29,936 INFO L470 AbstractCegarLoop]: Abstraction has 36022 states and 99297 transitions. [2022-01-18 11:24:29,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 36022 states and 99297 transitions. [2022-01-18 11:24:29,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:29,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:29,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:29,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-01-18 11:24:29,987 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:29,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:29,987 INFO L85 PathProgramCache]: Analyzing trace with hash -905955614, now seen corresponding path program 29 times [2022-01-18 11:24:29,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:29,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276908646] [2022-01-18 11:24:29,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:29,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:30,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:30,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276908646] [2022-01-18 11:24:30,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276908646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:30,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:30,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:24:30,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400910702] [2022-01-18 11:24:30,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:30,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:24:30,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:30,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:24:30,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:24:30,158 INFO L87 Difference]: Start difference. First operand 36022 states and 99297 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:31,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:31,329 INFO L93 Difference]: Finished difference Result 64134 states and 175950 transitions. [2022-01-18 11:24:31,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:24:31,329 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:31,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:31,444 INFO L225 Difference]: With dead ends: 64134 [2022-01-18 11:24:31,445 INFO L226 Difference]: Without dead ends: 64134 [2022-01-18 11:24:31,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=555, Invalid=2097, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:24:31,445 INFO L933 BasicCegarLoop]: 856 mSDtfsCounter, 2664 mSDsluCounter, 8484 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2664 SdHoareTripleChecker+Valid, 9247 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:31,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2664 Valid, 9247 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1733 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:24:31,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64134 states. [2022-01-18 11:24:32,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64134 to 35226. [2022-01-18 11:24:32,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35226 states, 35225 states have (on average 2.7461462029808374) internal successors, (96733), 35225 states have internal predecessors, (96733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:32,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35226 states to 35226 states and 96733 transitions. [2022-01-18 11:24:32,351 INFO L78 Accepts]: Start accepts. Automaton has 35226 states and 96733 transitions. Word has length 293 [2022-01-18 11:24:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:32,351 INFO L470 AbstractCegarLoop]: Abstraction has 35226 states and 96733 transitions. [2022-01-18 11:24:32,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:32,351 INFO L276 IsEmpty]: Start isEmpty. Operand 35226 states and 96733 transitions. [2022-01-18 11:24:32,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:32,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:32,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:32,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-01-18 11:24:32,399 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:32,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:32,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1323779995, now seen corresponding path program 24 times [2022-01-18 11:24:32,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:32,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557933456] [2022-01-18 11:24:32,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:32,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:32,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:32,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557933456] [2022-01-18 11:24:32,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557933456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:32,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:32,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:24:32,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094244635] [2022-01-18 11:24:32,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:32,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:24:32,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:32,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:24:32,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:24:32,572 INFO L87 Difference]: Start difference. First operand 35226 states and 96733 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:33,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:33,447 INFO L93 Difference]: Finished difference Result 42240 states and 115452 transitions. [2022-01-18 11:24:33,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:24:33,448 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:33,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:33,516 INFO L225 Difference]: With dead ends: 42240 [2022-01-18 11:24:33,516 INFO L226 Difference]: Without dead ends: 42240 [2022-01-18 11:24:33,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=1642, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:24:33,516 INFO L933 BasicCegarLoop]: 711 mSDtfsCounter, 2084 mSDsluCounter, 6651 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 7284 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:33,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2084 Valid, 7284 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:24:33,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42240 states. [2022-01-18 11:24:34,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42240 to 34610. [2022-01-18 11:24:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34610 states, 34609 states have (on average 2.741107804328354) internal successors, (94867), 34609 states have internal predecessors, (94867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34610 states to 34610 states and 94867 transitions. [2022-01-18 11:24:34,235 INFO L78 Accepts]: Start accepts. Automaton has 34610 states and 94867 transitions. Word has length 293 [2022-01-18 11:24:34,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:34,235 INFO L470 AbstractCegarLoop]: Abstraction has 34610 states and 94867 transitions. [2022-01-18 11:24:34,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 34610 states and 94867 transitions. [2022-01-18 11:24:34,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:34,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:34,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:34,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-01-18 11:24:34,282 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:34,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:34,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1875008161, now seen corresponding path program 25 times [2022-01-18 11:24:34,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:34,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589116755] [2022-01-18 11:24:34,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:34,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:34,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:34,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589116755] [2022-01-18 11:24:34,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589116755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:34,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:34,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:34,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829759403] [2022-01-18 11:24:34,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:34,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:34,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:34,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:34,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:34,453 INFO L87 Difference]: Start difference. First operand 34610 states and 94867 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:36,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:36,109 INFO L93 Difference]: Finished difference Result 91225 states and 250301 transitions. [2022-01-18 11:24:36,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:24:36,110 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:36,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:36,260 INFO L225 Difference]: With dead ends: 91225 [2022-01-18 11:24:36,261 INFO L226 Difference]: Without dead ends: 91225 [2022-01-18 11:24:36,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=673, Invalid=2407, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:24:36,261 INFO L933 BasicCegarLoop]: 1061 mSDtfsCounter, 2484 mSDsluCounter, 9720 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2484 SdHoareTripleChecker+Valid, 10638 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:36,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2484 Valid, 10638 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:24:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91225 states. [2022-01-18 11:24:37,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91225 to 36291. [2022-01-18 11:24:37,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36291 states, 36290 states have (on average 2.756957839625241) internal successors, (100050), 36290 states have internal predecessors, (100050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36291 states to 36291 states and 100050 transitions. [2022-01-18 11:24:37,362 INFO L78 Accepts]: Start accepts. Automaton has 36291 states and 100050 transitions. Word has length 293 [2022-01-18 11:24:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:37,363 INFO L470 AbstractCegarLoop]: Abstraction has 36291 states and 100050 transitions. [2022-01-18 11:24:37,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 36291 states and 100050 transitions. [2022-01-18 11:24:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:37,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:37,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:37,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-01-18 11:24:37,407 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:37,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:37,407 INFO L85 PathProgramCache]: Analyzing trace with hash 380926212, now seen corresponding path program 30 times [2022-01-18 11:24:37,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:37,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388951846] [2022-01-18 11:24:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:37,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:37,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:37,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:37,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388951846] [2022-01-18 11:24:37,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388951846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:37,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:37,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:24:37,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628422989] [2022-01-18 11:24:37,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:37,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:24:37,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:37,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:24:37,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:24:37,582 INFO L87 Difference]: Start difference. First operand 36291 states and 100050 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:38,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:38,975 INFO L93 Difference]: Finished difference Result 94102 states and 258144 transitions. [2022-01-18 11:24:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:24:38,976 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:38,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:39,140 INFO L225 Difference]: With dead ends: 94102 [2022-01-18 11:24:39,140 INFO L226 Difference]: Without dead ends: 94102 [2022-01-18 11:24:39,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=728, Invalid=2694, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:24:39,141 INFO L933 BasicCegarLoop]: 1112 mSDtfsCounter, 2983 mSDsluCounter, 9905 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2983 SdHoareTripleChecker+Valid, 10890 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:39,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2983 Valid, 10890 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:24:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94102 states. [2022-01-18 11:24:40,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94102 to 35455. [2022-01-18 11:24:40,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35455 states, 35454 states have (on average 2.7464037908275514) internal successors, (97371), 35454 states have internal predecessors, (97371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35455 states to 35455 states and 97371 transitions. [2022-01-18 11:24:40,222 INFO L78 Accepts]: Start accepts. Automaton has 35455 states and 97371 transitions. Word has length 293 [2022-01-18 11:24:40,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:40,222 INFO L470 AbstractCegarLoop]: Abstraction has 35455 states and 97371 transitions. [2022-01-18 11:24:40,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:40,222 INFO L276 IsEmpty]: Start isEmpty. Operand 35455 states and 97371 transitions. [2022-01-18 11:24:40,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:40,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:40,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:40,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-01-18 11:24:40,270 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:40,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:40,270 INFO L85 PathProgramCache]: Analyzing trace with hash -48636368, now seen corresponding path program 31 times [2022-01-18 11:24:40,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:40,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416178767] [2022-01-18 11:24:40,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:40,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:40,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:40,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416178767] [2022-01-18 11:24:40,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416178767] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:40,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:40,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:40,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188290151] [2022-01-18 11:24:40,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:40,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:40,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:40,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:40,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:40,438 INFO L87 Difference]: Start difference. First operand 35455 states and 97371 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:41,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:41,791 INFO L93 Difference]: Finished difference Result 70181 states and 192327 transitions. [2022-01-18 11:24:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:24:41,791 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:41,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:41,918 INFO L225 Difference]: With dead ends: 70181 [2022-01-18 11:24:41,918 INFO L226 Difference]: Without dead ends: 70181 [2022-01-18 11:24:41,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:24:41,918 INFO L933 BasicCegarLoop]: 956 mSDtfsCounter, 2221 mSDsluCounter, 8699 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 9550 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:41,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2221 Valid, 9550 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:24:42,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70181 states. [2022-01-18 11:24:42,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70181 to 35419. [2022-01-18 11:24:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35419 states, 35418 states have (on average 2.7459483878253996) internal successors, (97256), 35418 states have internal predecessors, (97256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:42,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35419 states to 35419 states and 97256 transitions. [2022-01-18 11:24:42,686 INFO L78 Accepts]: Start accepts. Automaton has 35419 states and 97256 transitions. Word has length 293 [2022-01-18 11:24:42,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:42,686 INFO L470 AbstractCegarLoop]: Abstraction has 35419 states and 97256 transitions. [2022-01-18 11:24:42,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:42,687 INFO L276 IsEmpty]: Start isEmpty. Operand 35419 states and 97256 transitions. [2022-01-18 11:24:42,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:42,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:42,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:42,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-01-18 11:24:42,734 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:42,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:42,734 INFO L85 PathProgramCache]: Analyzing trace with hash -242618070, now seen corresponding path program 32 times [2022-01-18 11:24:42,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:42,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816664169] [2022-01-18 11:24:42,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:42,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:42,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:42,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:42,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816664169] [2022-01-18 11:24:42,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816664169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:42,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:42,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:42,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975384521] [2022-01-18 11:24:42,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:42,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:42,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:42,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:42,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:42,994 INFO L87 Difference]: Start difference. First operand 35419 states and 97256 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:44,232 INFO L93 Difference]: Finished difference Result 71745 states and 195968 transitions. [2022-01-18 11:24:44,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:24:44,232 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:44,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:44,367 INFO L225 Difference]: With dead ends: 71745 [2022-01-18 11:24:44,367 INFO L226 Difference]: Without dead ends: 71745 [2022-01-18 11:24:44,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=616, Invalid=2246, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:24:44,368 INFO L933 BasicCegarLoop]: 973 mSDtfsCounter, 2254 mSDsluCounter, 8989 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 9850 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:44,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2254 Valid, 9850 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:24:44,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71745 states. [2022-01-18 11:24:45,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71745 to 34602. [2022-01-18 11:24:45,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34602 states, 34601 states have (on average 2.741105748388775) internal successors, (94845), 34601 states have internal predecessors, (94845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:45,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34602 states to 34602 states and 94845 transitions. [2022-01-18 11:24:45,316 INFO L78 Accepts]: Start accepts. Automaton has 34602 states and 94845 transitions. Word has length 293 [2022-01-18 11:24:45,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:45,316 INFO L470 AbstractCegarLoop]: Abstraction has 34602 states and 94845 transitions. [2022-01-18 11:24:45,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:45,316 INFO L276 IsEmpty]: Start isEmpty. Operand 34602 states and 94845 transitions. [2022-01-18 11:24:45,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:45,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:45,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:45,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-01-18 11:24:45,363 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:45,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:45,363 INFO L85 PathProgramCache]: Analyzing trace with hash 968041411, now seen corresponding path program 26 times [2022-01-18 11:24:45,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:45,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990982272] [2022-01-18 11:24:45,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:45,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:45,531 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:45,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:45,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990982272] [2022-01-18 11:24:45,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990982272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:45,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:45,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:45,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95429128] [2022-01-18 11:24:45,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:45,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:45,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:45,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:45,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:45,532 INFO L87 Difference]: Start difference. First operand 34602 states and 94845 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:46,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:46,753 INFO L93 Difference]: Finished difference Result 65574 states and 179659 transitions. [2022-01-18 11:24:46,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:24:46,753 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:46,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:46,874 INFO L225 Difference]: With dead ends: 65574 [2022-01-18 11:24:46,874 INFO L226 Difference]: Without dead ends: 65574 [2022-01-18 11:24:46,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=584, Invalid=2068, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:24:46,875 INFO L933 BasicCegarLoop]: 981 mSDtfsCounter, 2543 mSDsluCounter, 8259 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 9096 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:46,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2543 Valid, 9096 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:24:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65574 states. [2022-01-18 11:24:47,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65574 to 36386. [2022-01-18 11:24:47,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36386 states, 36385 states have (on average 2.7572076405112) internal successors, (100321), 36385 states have internal predecessors, (100321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36386 states to 36386 states and 100321 transitions. [2022-01-18 11:24:47,745 INFO L78 Accepts]: Start accepts. Automaton has 36386 states and 100321 transitions. Word has length 293 [2022-01-18 11:24:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:47,746 INFO L470 AbstractCegarLoop]: Abstraction has 36386 states and 100321 transitions. [2022-01-18 11:24:47,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:47,746 INFO L276 IsEmpty]: Start isEmpty. Operand 36386 states and 100321 transitions. [2022-01-18 11:24:47,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:47,796 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:47,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:47,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-01-18 11:24:47,797 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:47,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:47,797 INFO L85 PathProgramCache]: Analyzing trace with hash -526040538, now seen corresponding path program 33 times [2022-01-18 11:24:47,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:47,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844327610] [2022-01-18 11:24:47,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:47,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:47,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:47,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:47,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844327610] [2022-01-18 11:24:47,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844327610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:47,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:47,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:47,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039290095] [2022-01-18 11:24:47,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:47,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:47,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:47,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:47,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:47,989 INFO L87 Difference]: Start difference. First operand 36386 states and 100321 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:49,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:49,244 INFO L93 Difference]: Finished difference Result 68462 states and 187515 transitions. [2022-01-18 11:24:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:24:49,244 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:49,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:49,359 INFO L225 Difference]: With dead ends: 68462 [2022-01-18 11:24:49,359 INFO L226 Difference]: Without dead ends: 68462 [2022-01-18 11:24:49,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1922, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:24:49,359 INFO L933 BasicCegarLoop]: 964 mSDtfsCounter, 2602 mSDsluCounter, 8023 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2602 SdHoareTripleChecker+Valid, 8875 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:49,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2602 Valid, 8875 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:24:49,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68462 states. [2022-01-18 11:24:49,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68462 to 35550. [2022-01-18 11:24:50,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35550 states, 35549 states have (on average 2.7466876705392558) internal successors, (97642), 35549 states have internal predecessors, (97642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35550 states to 35550 states and 97642 transitions. [2022-01-18 11:24:50,084 INFO L78 Accepts]: Start accepts. Automaton has 35550 states and 97642 transitions. Word has length 293 [2022-01-18 11:24:50,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:50,084 INFO L470 AbstractCegarLoop]: Abstraction has 35550 states and 97642 transitions. [2022-01-18 11:24:50,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:50,084 INFO L276 IsEmpty]: Start isEmpty. Operand 35550 states and 97642 transitions. [2022-01-18 11:24:50,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:50,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:50,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:50,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-01-18 11:24:50,237 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:50,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:50,238 INFO L85 PathProgramCache]: Analyzing trace with hash -955603118, now seen corresponding path program 34 times [2022-01-18 11:24:50,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:50,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533661083] [2022-01-18 11:24:50,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:50,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:50,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:50,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:50,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533661083] [2022-01-18 11:24:50,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533661083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:50,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:50,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:50,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143360830] [2022-01-18 11:24:50,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:50,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:50,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:50,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:50,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:50,429 INFO L87 Difference]: Start difference. First operand 35550 states and 97642 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:51,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:51,695 INFO L93 Difference]: Finished difference Result 69191 states and 189585 transitions. [2022-01-18 11:24:51,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:24:51,696 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:51,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:51,852 INFO L225 Difference]: With dead ends: 69191 [2022-01-18 11:24:51,852 INFO L226 Difference]: Without dead ends: 69191 [2022-01-18 11:24:51,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=506, Invalid=1846, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:24:51,853 INFO L933 BasicCegarLoop]: 938 mSDtfsCounter, 2423 mSDsluCounter, 8680 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 9507 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:51,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2423 Valid, 9507 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:24:51,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69191 states. [2022-01-18 11:24:52,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69191 to 35514. [2022-01-18 11:24:52,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35514 states, 35513 states have (on average 2.746233773547715) internal successors, (97527), 35513 states have internal predecessors, (97527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35514 states to 35514 states and 97527 transitions. [2022-01-18 11:24:52,884 INFO L78 Accepts]: Start accepts. Automaton has 35514 states and 97527 transitions. Word has length 293 [2022-01-18 11:24:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:52,884 INFO L470 AbstractCegarLoop]: Abstraction has 35514 states and 97527 transitions. [2022-01-18 11:24:52,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:52,884 INFO L276 IsEmpty]: Start isEmpty. Operand 35514 states and 97527 transitions. [2022-01-18 11:24:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:52,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:52,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:52,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-01-18 11:24:52,942 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:52,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:52,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1149584820, now seen corresponding path program 35 times [2022-01-18 11:24:52,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:52,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470069777] [2022-01-18 11:24:52,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:52,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:53,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:53,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:53,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470069777] [2022-01-18 11:24:53,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470069777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:53,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:53,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:53,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432047273] [2022-01-18 11:24:53,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:53,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:53,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:53,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:53,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:53,145 INFO L87 Difference]: Start difference. First operand 35514 states and 97527 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:54,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:54,283 INFO L93 Difference]: Finished difference Result 77364 states and 211045 transitions. [2022-01-18 11:24:54,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:24:54,284 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:54,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:54,421 INFO L225 Difference]: With dead ends: 77364 [2022-01-18 11:24:54,421 INFO L226 Difference]: Without dead ends: 77364 [2022-01-18 11:24:54,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=557, Invalid=1993, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:24:54,422 INFO L933 BasicCegarLoop]: 957 mSDtfsCounter, 2223 mSDsluCounter, 7870 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 8714 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:54,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2223 Valid, 8714 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1533 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:54,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77364 states. [2022-01-18 11:24:55,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77364 to 35442. [2022-01-18 11:24:55,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35442 states, 35441 states have (on average 2.7453232132276177) internal successors, (97297), 35441 states have internal predecessors, (97297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:55,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35442 states to 35442 states and 97297 transitions. [2022-01-18 11:24:55,440 INFO L78 Accepts]: Start accepts. Automaton has 35442 states and 97297 transitions. Word has length 293 [2022-01-18 11:24:55,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:55,440 INFO L470 AbstractCegarLoop]: Abstraction has 35442 states and 97297 transitions. [2022-01-18 11:24:55,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:55,440 INFO L276 IsEmpty]: Start isEmpty. Operand 35442 states and 97297 transitions. [2022-01-18 11:24:55,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:55,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:55,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:55,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-01-18 11:24:55,490 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:55,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:55,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1851040810, now seen corresponding path program 36 times [2022-01-18 11:24:55,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:55,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402928776] [2022-01-18 11:24:55,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:55,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:55,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:55,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402928776] [2022-01-18 11:24:55,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402928776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:55,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:55,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:55,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040500088] [2022-01-18 11:24:55,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:55,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:55,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:55,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:55,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:55,667 INFO L87 Difference]: Start difference. First operand 35442 states and 97297 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:56,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:56,737 INFO L93 Difference]: Finished difference Result 44740 states and 121731 transitions. [2022-01-18 11:24:56,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:24:56,737 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:56,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:56,807 INFO L225 Difference]: With dead ends: 44740 [2022-01-18 11:24:56,808 INFO L226 Difference]: Without dead ends: 44740 [2022-01-18 11:24:56,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=483, Invalid=1773, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:24:56,808 INFO L933 BasicCegarLoop]: 776 mSDtfsCounter, 1920 mSDsluCounter, 7297 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1920 SdHoareTripleChecker+Valid, 7969 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:56,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1920 Valid, 7969 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:56,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44740 states. [2022-01-18 11:24:57,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44740 to 34598. [2022-01-18 11:24:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34598 states, 34597 states have (on average 2.741104720062433) internal successors, (94834), 34597 states have internal predecessors, (94834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:57,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34598 states to 34598 states and 94834 transitions. [2022-01-18 11:24:57,407 INFO L78 Accepts]: Start accepts. Automaton has 34598 states and 94834 transitions. Word has length 293 [2022-01-18 11:24:57,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:57,407 INFO L470 AbstractCegarLoop]: Abstraction has 34598 states and 94834 transitions. [2022-01-18 11:24:57,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:57,407 INFO L276 IsEmpty]: Start isEmpty. Operand 34598 states and 94834 transitions. [2022-01-18 11:24:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:24:57,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:57,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:57,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-01-18 11:24:57,460 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:57,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:57,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1606893825, now seen corresponding path program 27 times [2022-01-18 11:24:57,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:57,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250172714] [2022-01-18 11:24:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:57,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:24:57,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:57,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250172714] [2022-01-18 11:24:57,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250172714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:57,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:57,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:24:57,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340320514] [2022-01-18 11:24:57,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:57,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:24:57,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:57,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:24:57,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:24:57,645 INFO L87 Difference]: Start difference. First operand 34598 states and 94834 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:59,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:59,092 INFO L93 Difference]: Finished difference Result 94589 states and 259431 transitions. [2022-01-18 11:24:59,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:24:59,093 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:24:59,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:59,285 INFO L225 Difference]: With dead ends: 94589 [2022-01-18 11:24:59,285 INFO L226 Difference]: Without dead ends: 94589 [2022-01-18 11:24:59,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=595, Invalid=2267, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:24:59,286 INFO L933 BasicCegarLoop]: 919 mSDtfsCounter, 2662 mSDsluCounter, 8480 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 9273 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:59,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2662 Valid, 9273 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:24:59,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94589 states. [2022-01-18 11:25:00,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94589 to 36113. [2022-01-18 11:25:00,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36113 states, 36112 states have (on average 2.756452148870182) internal successors, (99541), 36112 states have internal predecessors, (99541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36113 states to 36113 states and 99541 transitions. [2022-01-18 11:25:00,347 INFO L78 Accepts]: Start accepts. Automaton has 36113 states and 99541 transitions. Word has length 293 [2022-01-18 11:25:00,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:00,347 INFO L470 AbstractCegarLoop]: Abstraction has 36113 states and 99541 transitions. [2022-01-18 11:25:00,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 36113 states and 99541 transitions. [2022-01-18 11:25:00,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:00,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:00,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:00,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-01-18 11:25:00,400 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:00,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:00,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1193991522, now seen corresponding path program 37 times [2022-01-18 11:25:00,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:00,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765073958] [2022-01-18 11:25:00,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:00,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:00,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:00,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765073958] [2022-01-18 11:25:00,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765073958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:00,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:00,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:25:00,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291349045] [2022-01-18 11:25:00,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:00,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:25:00,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:00,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:25:00,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:25:00,571 INFO L87 Difference]: Start difference. First operand 36113 states and 99541 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:01,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:01,956 INFO L93 Difference]: Finished difference Result 97461 states and 267269 transitions. [2022-01-18 11:25:01,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:25:01,957 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:01,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:02,158 INFO L225 Difference]: With dead ends: 97461 [2022-01-18 11:25:02,158 INFO L226 Difference]: Without dead ends: 97461 [2022-01-18 11:25:02,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=550, Invalid=2102, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:25:02,158 INFO L933 BasicCegarLoop]: 927 mSDtfsCounter, 2485 mSDsluCounter, 8521 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 9346 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:02,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2485 Valid, 9346 Invalid, 1645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:25:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97461 states. [2022-01-18 11:25:03,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97461 to 35277. [2022-01-18 11:25:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35277 states, 35276 states have (on average 2.745832860868579) internal successors, (96862), 35276 states have internal predecessors, (96862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35277 states to 35277 states and 96862 transitions. [2022-01-18 11:25:03,238 INFO L78 Accepts]: Start accepts. Automaton has 35277 states and 96862 transitions. Word has length 293 [2022-01-18 11:25:03,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:03,238 INFO L470 AbstractCegarLoop]: Abstraction has 35277 states and 96862 transitions. [2022-01-18 11:25:03,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:03,239 INFO L276 IsEmpty]: Start isEmpty. Operand 35277 states and 96862 transitions. [2022-01-18 11:25:03,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:03,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:03,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:03,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-01-18 11:25:03,286 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:03,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:03,287 INFO L85 PathProgramCache]: Analyzing trace with hash 764428942, now seen corresponding path program 38 times [2022-01-18 11:25:03,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:03,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787521231] [2022-01-18 11:25:03,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:03,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:03,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:03,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:03,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787521231] [2022-01-18 11:25:03,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787521231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:03,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:03,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:25:03,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731839753] [2022-01-18 11:25:03,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:03,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:25:03,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:03,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:25:03,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:25:03,455 INFO L87 Difference]: Start difference. First operand 35277 states and 96862 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:04,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:04,707 INFO L93 Difference]: Finished difference Result 73788 states and 202473 transitions. [2022-01-18 11:25:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:25:04,707 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:04,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:04,854 INFO L225 Difference]: With dead ends: 73788 [2022-01-18 11:25:04,854 INFO L226 Difference]: Without dead ends: 73788 [2022-01-18 11:25:04,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=486, Invalid=1866, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:25:04,854 INFO L933 BasicCegarLoop]: 806 mSDtfsCounter, 2353 mSDsluCounter, 8149 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2353 SdHoareTripleChecker+Valid, 8847 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:04,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2353 Valid, 8847 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:04,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73788 states. [2022-01-18 11:25:05,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73788 to 34638. [2022-01-18 11:25:05,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34638 states, 34637 states have (on average 2.7411149926379306) internal successors, (94944), 34637 states have internal predecessors, (94944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:05,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34638 states to 34638 states and 94944 transitions. [2022-01-18 11:25:05,857 INFO L78 Accepts]: Start accepts. Automaton has 34638 states and 94944 transitions. Word has length 293 [2022-01-18 11:25:05,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:05,857 INFO L470 AbstractCegarLoop]: Abstraction has 34638 states and 94944 transitions. [2022-01-18 11:25:05,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:05,857 INFO L276 IsEmpty]: Start isEmpty. Operand 34638 states and 94944 transitions. [2022-01-18 11:25:05,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:05,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:05,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:05,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-01-18 11:25:05,905 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:05,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:05,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1744381567, now seen corresponding path program 28 times [2022-01-18 11:25:05,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:05,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186869975] [2022-01-18 11:25:05,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:05,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:06,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:06,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:06,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186869975] [2022-01-18 11:25:06,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186869975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:06,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:06,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:25:06,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568288394] [2022-01-18 11:25:06,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:06,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:25:06,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:06,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:25:06,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:25:06,075 INFO L87 Difference]: Start difference. First operand 34638 states and 94944 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:07,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:07,447 INFO L93 Difference]: Finished difference Result 100065 states and 274913 transitions. [2022-01-18 11:25:07,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:25:07,448 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:07,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:07,653 INFO L225 Difference]: With dead ends: 100065 [2022-01-18 11:25:07,653 INFO L226 Difference]: Without dead ends: 100065 [2022-01-18 11:25:07,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=609, Invalid=2361, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:25:07,654 INFO L933 BasicCegarLoop]: 1009 mSDtfsCounter, 2540 mSDsluCounter, 9159 mSDsCounter, 0 mSdLazyCounter, 1863 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 10032 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:07,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2540 Valid, 10032 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1863 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:25:07,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100065 states. [2022-01-18 11:25:08,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100065 to 36046. [2022-01-18 11:25:08,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36046 states, 36045 states have (on average 2.7566375364128173) internal successors, (99363), 36045 states have internal predecessors, (99363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:08,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36046 states to 36046 states and 99363 transitions. [2022-01-18 11:25:08,799 INFO L78 Accepts]: Start accepts. Automaton has 36046 states and 99363 transitions. Word has length 293 [2022-01-18 11:25:08,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:08,799 INFO L470 AbstractCegarLoop]: Abstraction has 36046 states and 99363 transitions. [2022-01-18 11:25:08,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:08,800 INFO L276 IsEmpty]: Start isEmpty. Operand 36046 states and 99363 transitions. [2022-01-18 11:25:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:08,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:08,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:08,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-01-18 11:25:08,848 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:08,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:08,848 INFO L85 PathProgramCache]: Analyzing trace with hash 250299618, now seen corresponding path program 39 times [2022-01-18 11:25:08,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:08,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605474099] [2022-01-18 11:25:08,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:08,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:09,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:09,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605474099] [2022-01-18 11:25:09,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605474099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:09,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:09,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:25:09,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405390610] [2022-01-18 11:25:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:09,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:25:09,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:25:09,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:25:09,014 INFO L87 Difference]: Start difference. First operand 36046 states and 99363 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:10,593 INFO L93 Difference]: Finished difference Result 95485 states and 262561 transitions. [2022-01-18 11:25:10,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:25:10,593 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:10,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:10,780 INFO L225 Difference]: With dead ends: 95485 [2022-01-18 11:25:10,780 INFO L226 Difference]: Without dead ends: 95485 [2022-01-18 11:25:10,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=609, Invalid=2361, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:25:10,780 INFO L933 BasicCegarLoop]: 1004 mSDtfsCounter, 2728 mSDsluCounter, 9049 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2728 SdHoareTripleChecker+Valid, 9935 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:10,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2728 Valid, 9935 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:25:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95485 states. [2022-01-18 11:25:11,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95485 to 35250. [2022-01-18 11:25:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35250 states, 35249 states have (on average 2.7461488269170755) internal successors, (96799), 35249 states have internal predecessors, (96799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:11,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35250 states to 35250 states and 96799 transitions. [2022-01-18 11:25:11,840 INFO L78 Accepts]: Start accepts. Automaton has 35250 states and 96799 transitions. Word has length 293 [2022-01-18 11:25:11,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:11,840 INFO L470 AbstractCegarLoop]: Abstraction has 35250 states and 96799 transitions. [2022-01-18 11:25:11,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:11,840 INFO L276 IsEmpty]: Start isEmpty. Operand 35250 states and 96799 transitions. [2022-01-18 11:25:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:11,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:11,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:11,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-01-18 11:25:11,887 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:11,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:11,887 INFO L85 PathProgramCache]: Analyzing trace with hash -167524763, now seen corresponding path program 29 times [2022-01-18 11:25:11,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:11,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812378702] [2022-01-18 11:25:11,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:11,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:12,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:12,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812378702] [2022-01-18 11:25:12,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812378702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:12,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:12,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:25:12,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211362031] [2022-01-18 11:25:12,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:12,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:25:12,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:12,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:25:12,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:25:12,057 INFO L87 Difference]: Start difference. First operand 35250 states and 96799 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:13,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:13,154 INFO L93 Difference]: Finished difference Result 73607 states and 202081 transitions. [2022-01-18 11:25:13,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:25:13,155 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:13,282 INFO L225 Difference]: With dead ends: 73607 [2022-01-18 11:25:13,282 INFO L226 Difference]: Without dead ends: 73607 [2022-01-18 11:25:13,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1950, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:25:13,283 INFO L933 BasicCegarLoop]: 883 mSDtfsCounter, 2174 mSDsluCounter, 8105 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 8876 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:13,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2174 Valid, 8876 Invalid, 1607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:13,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73607 states. [2022-01-18 11:25:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73607 to 34634. [2022-01-18 11:25:14,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34634 states, 34633 states have (on average 2.7411139664481854) internal successors, (94933), 34633 states have internal predecessors, (94933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34634 states to 34634 states and 94933 transitions. [2022-01-18 11:25:14,200 INFO L78 Accepts]: Start accepts. Automaton has 34634 states and 94933 transitions. Word has length 293 [2022-01-18 11:25:14,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:14,200 INFO L470 AbstractCegarLoop]: Abstraction has 34634 states and 94933 transitions. [2022-01-18 11:25:14,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:14,200 INFO L276 IsEmpty]: Start isEmpty. Operand 34634 states and 94933 transitions. [2022-01-18 11:25:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:14,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:14,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:14,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-01-18 11:25:14,247 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:14,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash -586751711, now seen corresponding path program 30 times [2022-01-18 11:25:14,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:14,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666395465] [2022-01-18 11:25:14,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:14,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:14,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:14,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:14,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666395465] [2022-01-18 11:25:14,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666395465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:14,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:14,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:25:14,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240636807] [2022-01-18 11:25:14,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:14,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:25:14,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:14,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:25:14,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:25:14,422 INFO L87 Difference]: Start difference. First operand 34634 states and 94933 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:16,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:16,230 INFO L93 Difference]: Finished difference Result 99877 states and 274420 transitions. [2022-01-18 11:25:16,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:25:16,231 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:16,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:16,445 INFO L225 Difference]: With dead ends: 99877 [2022-01-18 11:25:16,445 INFO L226 Difference]: Without dead ends: 99877 [2022-01-18 11:25:16,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=740, Invalid=2920, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:25:16,446 INFO L933 BasicCegarLoop]: 1075 mSDtfsCounter, 2728 mSDsluCounter, 10535 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2728 SdHoareTripleChecker+Valid, 11442 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:16,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2728 Valid, 11442 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2136 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:25:16,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99877 states. [2022-01-18 11:25:17,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99877 to 36114. [2022-01-18 11:25:17,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36114 states, 36113 states have (on average 2.757511145570847) internal successors, (99582), 36113 states have internal predecessors, (99582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:17,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36114 states to 36114 states and 99582 transitions. [2022-01-18 11:25:17,626 INFO L78 Accepts]: Start accepts. Automaton has 36114 states and 99582 transitions. Word has length 293 [2022-01-18 11:25:17,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:17,626 INFO L470 AbstractCegarLoop]: Abstraction has 36114 states and 99582 transitions. [2022-01-18 11:25:17,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:17,626 INFO L276 IsEmpty]: Start isEmpty. Operand 36114 states and 99582 transitions. [2022-01-18 11:25:17,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:17,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:17,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:17,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-01-18 11:25:17,676 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:17,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:17,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2080833660, now seen corresponding path program 40 times [2022-01-18 11:25:17,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:17,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009713049] [2022-01-18 11:25:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:17,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:17,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:17,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009713049] [2022-01-18 11:25:17,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009713049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:17,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:17,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:25:17,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637296131] [2022-01-18 11:25:17,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:17,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:25:17,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:17,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:25:17,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:25:17,855 INFO L87 Difference]: Start difference. First operand 36114 states and 99582 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:19,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:19,433 INFO L93 Difference]: Finished difference Result 95297 states and 262068 transitions. [2022-01-18 11:25:19,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:25:19,434 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:19,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:19,604 INFO L225 Difference]: With dead ends: 95297 [2022-01-18 11:25:19,604 INFO L226 Difference]: Without dead ends: 95297 [2022-01-18 11:25:19,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 655 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=700, Invalid=2722, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:25:19,605 INFO L933 BasicCegarLoop]: 1055 mSDtfsCounter, 3037 mSDsluCounter, 11102 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3037 SdHoareTripleChecker+Valid, 12007 SdHoareTripleChecker+Invalid, 2233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:19,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3037 Valid, 12007 Invalid, 2233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:25:19,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95297 states. [2022-01-18 11:25:20,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95297 to 35446. [2022-01-18 11:25:20,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35446 states, 35445 states have (on average 2.746847228099873) internal successors, (97362), 35445 states have internal predecessors, (97362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:20,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35446 states to 35446 states and 97362 transitions. [2022-01-18 11:25:20,695 INFO L78 Accepts]: Start accepts. Automaton has 35446 states and 97362 transitions. Word has length 293 [2022-01-18 11:25:20,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:20,695 INFO L470 AbstractCegarLoop]: Abstraction has 35446 states and 97362 transitions. [2022-01-18 11:25:20,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:20,695 INFO L276 IsEmpty]: Start isEmpty. Operand 35446 states and 97362 transitions. [2022-01-18 11:25:20,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:20,743 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:20,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:20,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-01-18 11:25:20,744 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:20,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:20,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1796309255, now seen corresponding path program 31 times [2022-01-18 11:25:20,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:20,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943550375] [2022-01-18 11:25:20,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:20,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:20,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:20,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943550375] [2022-01-18 11:25:20,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943550375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:20,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:20,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:25:20,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451359704] [2022-01-18 11:25:20,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:20,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:25:20,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:20,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:25:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:25:20,910 INFO L87 Difference]: Start difference. First operand 35446 states and 97362 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:22,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:22,347 INFO L93 Difference]: Finished difference Result 74495 states and 204695 transitions. [2022-01-18 11:25:22,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:25:22,348 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:22,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:22,485 INFO L225 Difference]: With dead ends: 74495 [2022-01-18 11:25:22,485 INFO L226 Difference]: Without dead ends: 74495 [2022-01-18 11:25:22,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=615, Invalid=2355, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:25:22,486 INFO L933 BasicCegarLoop]: 950 mSDtfsCounter, 2604 mSDsluCounter, 8529 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2604 SdHoareTripleChecker+Valid, 9349 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:22,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2604 Valid, 9349 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:25:22,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74495 states. [2022-01-18 11:25:23,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74495 to 35410. [2022-01-18 11:25:23,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35410 states, 35409 states have (on average 2.7463921601852634) internal successors, (97247), 35409 states have internal predecessors, (97247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:23,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35410 states to 35410 states and 97247 transitions. [2022-01-18 11:25:23,490 INFO L78 Accepts]: Start accepts. Automaton has 35410 states and 97247 transitions. Word has length 293 [2022-01-18 11:25:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:23,491 INFO L470 AbstractCegarLoop]: Abstraction has 35410 states and 97247 transitions. [2022-01-18 11:25:23,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 35410 states and 97247 transitions. [2022-01-18 11:25:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:23,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:23,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:23,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-01-18 11:25:23,543 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:23,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:23,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1449833217, now seen corresponding path program 32 times [2022-01-18 11:25:23,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:23,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300832371] [2022-01-18 11:25:23,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:23,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:23,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:23,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300832371] [2022-01-18 11:25:23,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300832371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:23,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:23,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:25:23,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149995] [2022-01-18 11:25:23,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:23,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:25:23,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:23,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:25:23,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:25:23,717 INFO L87 Difference]: Start difference. First operand 35410 states and 97247 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:25,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:25,116 INFO L93 Difference]: Finished difference Result 77030 states and 210880 transitions. [2022-01-18 11:25:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:25:25,116 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:25,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:25,254 INFO L225 Difference]: With dead ends: 77030 [2022-01-18 11:25:25,255 INFO L226 Difference]: Without dead ends: 77030 [2022-01-18 11:25:25,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=643, Invalid=2549, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:25:25,255 INFO L933 BasicCegarLoop]: 983 mSDtfsCounter, 2467 mSDsluCounter, 9037 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 9874 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:25,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2467 Valid, 9874 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:25:25,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77030 states. [2022-01-18 11:25:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77030 to 34626. [2022-01-18 11:25:26,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34626 states, 34625 states have (on average 2.741111913357401) internal successors, (94911), 34625 states have internal predecessors, (94911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:26,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34626 states to 34626 states and 94911 transitions. [2022-01-18 11:25:26,264 INFO L78 Accepts]: Start accepts. Automaton has 34626 states and 94911 transitions. Word has length 293 [2022-01-18 11:25:26,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:26,264 INFO L470 AbstractCegarLoop]: Abstraction has 34626 states and 94911 transitions. [2022-01-18 11:25:26,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:26,265 INFO L276 IsEmpty]: Start isEmpty. Operand 34626 states and 94911 transitions. [2022-01-18 11:25:26,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:26,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:26,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:26,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-01-18 11:25:26,315 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:26,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:26,315 INFO L85 PathProgramCache]: Analyzing trace with hash -957073537, now seen corresponding path program 33 times [2022-01-18 11:25:26,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:26,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812398525] [2022-01-18 11:25:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:26,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:26,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:26,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:26,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812398525] [2022-01-18 11:25:26,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812398525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:26,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:26,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:25:26,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177892049] [2022-01-18 11:25:26,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:26,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:25:26,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:26,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:25:26,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:25:26,489 INFO L87 Difference]: Start difference. First operand 34626 states and 94911 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:28,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:28,140 INFO L93 Difference]: Finished difference Result 97075 states and 266739 transitions. [2022-01-18 11:25:28,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:25:28,140 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:28,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:28,313 INFO L225 Difference]: With dead ends: 97075 [2022-01-18 11:25:28,314 INFO L226 Difference]: Without dead ends: 97075 [2022-01-18 11:25:28,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=608, Invalid=2472, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:25:28,314 INFO L933 BasicCegarLoop]: 1013 mSDtfsCounter, 2544 mSDsluCounter, 11095 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2544 SdHoareTripleChecker+Valid, 11944 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:28,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2544 Valid, 11944 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:25:28,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97075 states. [2022-01-18 11:25:29,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97075 to 36113. [2022-01-18 11:25:29,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36113 states, 36112 states have (on average 2.756452148870182) internal successors, (99541), 36112 states have internal predecessors, (99541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36113 states to 36113 states and 99541 transitions. [2022-01-18 11:25:29,452 INFO L78 Accepts]: Start accepts. Automaton has 36113 states and 99541 transitions. Word has length 293 [2022-01-18 11:25:29,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:29,452 INFO L470 AbstractCegarLoop]: Abstraction has 36113 states and 99541 transitions. [2022-01-18 11:25:29,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:29,452 INFO L276 IsEmpty]: Start isEmpty. Operand 36113 states and 99541 transitions. [2022-01-18 11:25:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:29,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:29,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:29,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-01-18 11:25:29,502 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:29,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:29,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1843811810, now seen corresponding path program 41 times [2022-01-18 11:25:29,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:29,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325607401] [2022-01-18 11:25:29,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:29,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:29,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:29,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325607401] [2022-01-18 11:25:29,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325607401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:29,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:29,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:25:29,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426223155] [2022-01-18 11:25:29,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:29,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:25:29,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:29,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:25:29,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:25:29,673 INFO L87 Difference]: Start difference. First operand 36113 states and 99541 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:31,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:31,126 INFO L93 Difference]: Finished difference Result 99947 states and 274577 transitions. [2022-01-18 11:25:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:25:31,127 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:31,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:31,349 INFO L225 Difference]: With dead ends: 99947 [2022-01-18 11:25:31,349 INFO L226 Difference]: Without dead ends: 99947 [2022-01-18 11:25:31,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=612, Invalid=2358, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:25:31,350 INFO L933 BasicCegarLoop]: 1037 mSDtfsCounter, 2412 mSDsluCounter, 10295 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 11203 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:31,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2412 Valid, 11203 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:25:31,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99947 states. [2022-01-18 11:25:32,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99947 to 35277. [2022-01-18 11:25:32,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35277 states, 35276 states have (on average 2.745832860868579) internal successors, (96862), 35276 states have internal predecessors, (96862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:32,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35277 states to 35277 states and 96862 transitions. [2022-01-18 11:25:32,535 INFO L78 Accepts]: Start accepts. Automaton has 35277 states and 96862 transitions. Word has length 293 [2022-01-18 11:25:32,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:32,535 INFO L470 AbstractCegarLoop]: Abstraction has 35277 states and 96862 transitions. [2022-01-18 11:25:32,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:32,535 INFO L276 IsEmpty]: Start isEmpty. Operand 35277 states and 96862 transitions. [2022-01-18 11:25:32,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:32,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:32,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:32,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-01-18 11:25:32,585 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:32,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:32,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1414249230, now seen corresponding path program 42 times [2022-01-18 11:25:32,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:32,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233530359] [2022-01-18 11:25:32,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:32,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:32,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:32,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:32,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233530359] [2022-01-18 11:25:32,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233530359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:32,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:32,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:25:32,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528539978] [2022-01-18 11:25:32,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:32,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:25:32,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:32,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:25:32,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:25:32,753 INFO L87 Difference]: Start difference. First operand 35277 states and 96862 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:34,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:34,097 INFO L93 Difference]: Finished difference Result 74874 states and 205491 transitions. [2022-01-18 11:25:34,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:25:34,097 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:34,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:34,224 INFO L225 Difference]: With dead ends: 74874 [2022-01-18 11:25:34,224 INFO L226 Difference]: Without dead ends: 74874 [2022-01-18 11:25:34,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=503, Invalid=1947, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:25:34,225 INFO L933 BasicCegarLoop]: 868 mSDtfsCounter, 2474 mSDsluCounter, 8064 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2474 SdHoareTripleChecker+Valid, 8833 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:34,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2474 Valid, 8833 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1578 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:34,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74874 states. [2022-01-18 11:25:35,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74874 to 34638. [2022-01-18 11:25:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34638 states, 34637 states have (on average 2.7411149926379306) internal successors, (94944), 34637 states have internal predecessors, (94944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34638 states to 34638 states and 94944 transitions. [2022-01-18 11:25:35,198 INFO L78 Accepts]: Start accepts. Automaton has 34638 states and 94944 transitions. Word has length 293 [2022-01-18 11:25:35,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:35,199 INFO L470 AbstractCegarLoop]: Abstraction has 34638 states and 94944 transitions. [2022-01-18 11:25:35,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:35,199 INFO L276 IsEmpty]: Start isEmpty. Operand 34638 states and 94944 transitions. [2022-01-18 11:25:35,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:35,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:35,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:35,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-01-18 11:25:35,255 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:35,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:35,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1900765441, now seen corresponding path program 34 times [2022-01-18 11:25:35,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:35,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56556535] [2022-01-18 11:25:35,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:35,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:35,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:35,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56556535] [2022-01-18 11:25:35,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56556535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:35,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:35,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:25:35,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465449569] [2022-01-18 11:25:35,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:35,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:25:35,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:35,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:25:35,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:25:35,445 INFO L87 Difference]: Start difference. First operand 34638 states and 94944 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:36,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:36,924 INFO L93 Difference]: Finished difference Result 100945 states and 277345 transitions. [2022-01-18 11:25:36,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:25:36,924 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:36,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:37,131 INFO L225 Difference]: With dead ends: 100945 [2022-01-18 11:25:37,132 INFO L226 Difference]: Without dead ends: 100945 [2022-01-18 11:25:37,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=549, Invalid=2207, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:25:37,132 INFO L933 BasicCegarLoop]: 995 mSDtfsCounter, 2587 mSDsluCounter, 10853 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 11701 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:37,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2587 Valid, 11701 Invalid, 2196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:25:37,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100945 states. [2022-01-18 11:25:38,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100945 to 36046. [2022-01-18 11:25:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36046 states, 36045 states have (on average 2.7566375364128173) internal successors, (99363), 36045 states have internal predecessors, (99363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:38,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36046 states to 36046 states and 99363 transitions. [2022-01-18 11:25:38,291 INFO L78 Accepts]: Start accepts. Automaton has 36046 states and 99363 transitions. Word has length 293 [2022-01-18 11:25:38,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:38,291 INFO L470 AbstractCegarLoop]: Abstraction has 36046 states and 99363 transitions. [2022-01-18 11:25:38,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:38,291 INFO L276 IsEmpty]: Start isEmpty. Operand 36046 states and 99363 transitions. [2022-01-18 11:25:38,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:38,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:38,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:38,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-01-18 11:25:38,339 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:38,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash 900119906, now seen corresponding path program 43 times [2022-01-18 11:25:38,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:38,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055996922] [2022-01-18 11:25:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:38,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:38,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:38,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:38,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055996922] [2022-01-18 11:25:38,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055996922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:38,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:38,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:25:38,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746201851] [2022-01-18 11:25:38,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:38,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:25:38,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:38,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:25:38,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:25:38,514 INFO L87 Difference]: Start difference. First operand 36046 states and 99363 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:40,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:40,055 INFO L93 Difference]: Finished difference Result 96365 states and 264993 transitions. [2022-01-18 11:25:40,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:25:40,055 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:40,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:40,233 INFO L225 Difference]: With dead ends: 96365 [2022-01-18 11:25:40,233 INFO L226 Difference]: Without dead ends: 96365 [2022-01-18 11:25:40,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=598, Invalid=2264, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:25:40,234 INFO L933 BasicCegarLoop]: 1021 mSDtfsCounter, 2410 mSDsluCounter, 9171 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 10081 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:40,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2410 Valid, 10081 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1788 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:25:40,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96365 states. [2022-01-18 11:25:41,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96365 to 35250. [2022-01-18 11:25:41,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35250 states, 35249 states have (on average 2.7461488269170755) internal successors, (96799), 35249 states have internal predecessors, (96799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:41,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35250 states to 35250 states and 96799 transitions. [2022-01-18 11:25:41,315 INFO L78 Accepts]: Start accepts. Automaton has 35250 states and 96799 transitions. Word has length 293 [2022-01-18 11:25:41,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:41,315 INFO L470 AbstractCegarLoop]: Abstraction has 35250 states and 96799 transitions. [2022-01-18 11:25:41,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:41,315 INFO L276 IsEmpty]: Start isEmpty. Operand 35250 states and 96799 transitions. [2022-01-18 11:25:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:41,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:41,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:41,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-01-18 11:25:41,363 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:41,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:41,364 INFO L85 PathProgramCache]: Analyzing trace with hash 482295525, now seen corresponding path program 35 times [2022-01-18 11:25:41,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:41,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852296356] [2022-01-18 11:25:41,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:41,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:41,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:41,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852296356] [2022-01-18 11:25:41,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852296356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:41,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:41,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:25:41,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974681800] [2022-01-18 11:25:41,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:41,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:25:41,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:41,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:25:41,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:25:41,531 INFO L87 Difference]: Start difference. First operand 35250 states and 96799 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:42,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:42,601 INFO L93 Difference]: Finished difference Result 74487 states and 204513 transitions. [2022-01-18 11:25:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:25:42,602 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2022-01-18 11:25:42,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:42,732 INFO L225 Difference]: With dead ends: 74487 [2022-01-18 11:25:42,733 INFO L226 Difference]: Without dead ends: 74487 [2022-01-18 11:25:42,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 11:25:42,733 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 1983 mSDsluCounter, 7951 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 8721 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:42,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1983 Valid, 8721 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74487 states. [2022-01-18 11:25:43,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74487 to 34634. [2022-01-18 11:25:43,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34634 states, 34633 states have (on average 2.7411139664481854) internal successors, (94933), 34633 states have internal predecessors, (94933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:43,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34634 states to 34634 states and 94933 transitions. [2022-01-18 11:25:43,689 INFO L78 Accepts]: Start accepts. Automaton has 34634 states and 94933 transitions. Word has length 293 [2022-01-18 11:25:43,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:43,689 INFO L470 AbstractCegarLoop]: Abstraction has 34634 states and 94933 transitions. [2022-01-18 11:25:43,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:43,690 INFO L276 IsEmpty]: Start isEmpty. Operand 34634 states and 94933 transitions. [2022-01-18 11:25:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-18 11:25:43,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:43,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:43,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-01-18 11:25:43,739 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:43,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:43,739 INFO L85 PathProgramCache]: Analyzing trace with hash -613883615, now seen corresponding path program 36 times [2022-01-18 11:25:43,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:43,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502281709] [2022-01-18 11:25:43,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:43,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:43,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 11:25:43,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:43,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502281709] [2022-01-18 11:25:43,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502281709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:43,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:43,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 11:25:43,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931220428] [2022-01-18 11:25:43,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:43,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 11:25:43,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:43,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 11:25:43,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:25:43,918 INFO L87 Difference]: Start difference. First operand 34634 states and 94933 transitions. Second operand has 20 states, 20 states have (on average 14.65) internal successors, (293), 20 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 11:25:44,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:25:44,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=1145, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:25:44,310 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 650 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 2859 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:44,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [650 Valid, 2859 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:25:44,311 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 11:25:44,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-01-18 11:25:44,312 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (34634states) and FLOYD_HOARE automaton (currently 21 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (380 states constructed, input type IntersectNwa). [2022-01-18 11:25:44,313 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 11:25:44,313 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 11:25:44,315 INFO L732 BasicCegarLoop]: Path program histogram: [252, 43, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:44,316 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 11:25:44,316 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 11:25:44,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:25:44 BasicIcfg [2022-01-18 11:25:44,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 11:25:44,317 INFO L158 Benchmark]: Toolchain (without parser) took 730999.11ms. Allocated memory was 356.5MB in the beginning and 15.6GB in the end (delta: 15.2GB). Free memory was 304.3MB in the beginning and 10.6GB in the end (delta: -10.3GB). Peak memory consumption was 4.9GB. Max. memory is 16.0GB. [2022-01-18 11:25:44,317 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 11:25:44,317 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 356.5MB. Free memory is still 320.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:25:44,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.50ms. Allocated memory is still 356.5MB. Free memory was 304.1MB in the beginning and 326.5MB in the end (delta: -22.4MB). Peak memory consumption was 15.9MB. Max. memory is 16.0GB. [2022-01-18 11:25:44,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.97ms. Allocated memory is still 356.5MB. Free memory was 326.5MB in the beginning and 323.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:25:44,318 INFO L158 Benchmark]: Boogie Preprocessor took 37.78ms. Allocated memory is still 356.5MB. Free memory was 323.3MB in the beginning and 321.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:25:44,318 INFO L158 Benchmark]: RCFGBuilder took 488.42ms. Allocated memory is still 356.5MB. Free memory was 321.2MB in the beginning and 297.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2022-01-18 11:25:44,318 INFO L158 Benchmark]: TraceAbstraction took 730186.77ms. Allocated memory was 356.5MB in the beginning and 15.6GB in the end (delta: 15.2GB). Free memory was 296.1MB in the beginning and 10.6GB in the end (delta: -10.3GB). Peak memory consumption was 4.9GB. Max. memory is 16.0GB. [2022-01-18 11:25:44,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 356.5MB. Free memory is still 320.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 228.50ms. Allocated memory is still 356.5MB. Free memory was 304.1MB in the beginning and 326.5MB in the end (delta: -22.4MB). Peak memory consumption was 15.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.97ms. Allocated memory is still 356.5MB. Free memory was 326.5MB in the beginning and 323.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 37.78ms. Allocated memory is still 356.5MB. Free memory was 323.3MB in the beginning and 321.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 488.42ms. Allocated memory is still 356.5MB. Free memory was 321.2MB in the beginning and 297.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 730186.77ms. Allocated memory was 356.5MB in the beginning and 15.6GB in the end (delta: 15.2GB). Free memory was 296.1MB in the beginning and 10.6GB in the end (delta: -10.3GB). Peak memory consumption was 4.9GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (34634states) and FLOYD_HOARE automaton (currently 21 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (380 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (34634states) and FLOYD_HOARE automaton (currently 21 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (380 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (34634states) and FLOYD_HOARE automaton (currently 21 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (380 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 499 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 730.0s, OverallIterations: 344, TraceHistogramMax: 1, PathProgramHistogramMax: 252, EmptinessCheckTime: 14.1s, AutomataDifference: 416.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 683938 SdHoareTripleChecker+Valid, 177.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 683938 mSDsluCounter, 2945532 SdHoareTripleChecker+Invalid, 146.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2667600 mSDsCounter, 5586 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 511934 IncrementalHoareTripleChecker+Invalid, 517520 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5586 mSolverCounterUnsat, 312094 mSDtfsCounter, 511934 mSolverCounterSat, 4.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18522 GetRequests, 4308 SyntacticMatches, 4 SemanticMatches, 14210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127725 ImplicationChecksByTransitivity, 140.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40678occurred in iteration=270, InterpolantAutomatonStates: 10760, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 238.2s AutomataMinimizationTime, 343 MinimizatonAttempts, 10752338 StatesRemovedByMinimization, 340 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 53.6s InterpolantComputationTime, 93517 NumberOfCodeBlocks, 93517 NumberOfCodeBlocksAsserted, 346 NumberOfCheckSat, 93730 ConstructedInterpolants, 0 QuantifiedInterpolants, 400359 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1096 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 348 InterpolantComputations, 344 PerfectInterpolantSequences, 334/338 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown