/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/parallel-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 11:47:48,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 11:47:48,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 11:47:48,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 11:47:48,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 11:47:48,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 11:47:48,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 11:47:48,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 11:47:48,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 11:47:48,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 11:47:48,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 11:47:48,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 11:47:48,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 11:47:48,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 11:47:48,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 11:47:48,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 11:47:48,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 11:47:48,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 11:47:48,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 11:47:48,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 11:47:48,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 11:47:48,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 11:47:48,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 11:47:48,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 11:47:48,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 11:47:48,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 11:47:48,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 11:47:48,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 11:47:48,597 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 11:47:48,618 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 11:47:48,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 11:47:48,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 11:47:48,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 11:47:48,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 11:47:48,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 11:47:48,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 11:47:48,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 11:47:48,620 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 11:47:48,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 11:47:48,621 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 11:47:48,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 11:47:48,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 11:47:48,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 11:47:48,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 11:47:48,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:47:48,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 11:47:48,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 11:47:48,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 11:47:48,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 11:47:48,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 11:47:48,623 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 11:47:48,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 11:47:48,623 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 11:47:48,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 11:47:48,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 11:47:48,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 11:47:48,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 11:47:48,785 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 11:47:48,785 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 11:47:48,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-01-18 11:47:48,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f18b3738/642fb71c8d0d4dda9cc1645a0093d6c9/FLAGc09f74cc4 [2022-01-18 11:47:49,179 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 11:47:49,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-01-18 11:47:49,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f18b3738/642fb71c8d0d4dda9cc1645a0093d6c9/FLAGc09f74cc4 [2022-01-18 11:47:49,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f18b3738/642fb71c8d0d4dda9cc1645a0093d6c9 [2022-01-18 11:47:49,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 11:47:49,195 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 11:47:49,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 11:47:49,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 11:47:49,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 11:47:49,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31498aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49, skipping insertion in model container [2022-01-18 11:47:49,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 11:47:49,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 11:47:49,365 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/parallel-ticket-5.wvr.c[3963,3976] [2022-01-18 11:47:49,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:47:49,375 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 11:47:49,404 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/parallel-ticket-5.wvr.c[3963,3976] [2022-01-18 11:47:49,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:47:49,413 INFO L208 MainTranslator]: Completed translation [2022-01-18 11:47:49,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49 WrapperNode [2022-01-18 11:47:49,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 11:47:49,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 11:47:49,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 11:47:49,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 11:47:49,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,442 INFO L137 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2022-01-18 11:47:49,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 11:47:49,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 11:47:49,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 11:47:49,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 11:47:49,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 11:47:49,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 11:47:49,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 11:47:49,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 11:47:49,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (1/1) ... [2022-01-18 11:47:49,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:47:49,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:49,490 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 11:47:49,495 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 11:47:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 11:47:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 11:47:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 11:47:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 11:47:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 11:47:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 11:47:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 11:47:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 11:47:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 11:47:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 11:47:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-01-18 11:47:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-01-18 11:47:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 11:47:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 11:47:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 11:47:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 11:47:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 11:47:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 11:47:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 11:47:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 11:47:49,523 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 11:47:49,619 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 11:47:49,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 11:47:49,799 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 11:47:49,869 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 11:47:49,870 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 11:47:49,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:47:49 BoogieIcfgContainer [2022-01-18 11:47:49,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 11:47:49,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 11:47:49,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 11:47:49,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 11:47:49,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:47:49" (1/3) ... [2022-01-18 11:47:49,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd136c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:47:49, skipping insertion in model container [2022-01-18 11:47:49,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:47:49" (2/3) ... [2022-01-18 11:47:49,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd136c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:47:49, skipping insertion in model container [2022-01-18 11:47:49,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:47:49" (3/3) ... [2022-01-18 11:47:49,877 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-01-18 11:47:49,880 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 11:47:49,880 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 11:47:49,880 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 11:47:49,880 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 11:47:49,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,915 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,915 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,917 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,919 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,920 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,920 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,920 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,920 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,920 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,921 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,921 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,921 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,921 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,921 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,921 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,922 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,922 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,922 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,922 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,922 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,922 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,923 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,923 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,923 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,923 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,923 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,923 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,925 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,926 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,926 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,926 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,926 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,926 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,927 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,927 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,927 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,927 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,927 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,927 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,929 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,929 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,929 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,929 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,929 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,929 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,930 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,930 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,930 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,930 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,930 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,930 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:47:49,936 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-01-18 11:47:49,964 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 11:47:49,968 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 11:47:49,968 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-18 11:47:49,979 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 179 places, 165 transitions, 370 flow [2022-01-18 11:47:52,958 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 104505 states, 104504 states have (on average 4.851670749444997) internal successors, (507019), 104504 states have internal predecessors, (507019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:47:53,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 104505 states, 104504 states have (on average 4.851670749444997) internal successors, (507019), 104504 states have internal predecessors, (507019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:47:53,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:47:53,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:53,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:53,833 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:47:53,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:53,837 INFO L85 PathProgramCache]: Analyzing trace with hash 337044275, now seen corresponding path program 1 times [2022-01-18 11:47:53,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:53,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723860346] [2022-01-18 11:47:53,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:53,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:47:54,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:54,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723860346] [2022-01-18 11:47:54,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723860346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:47:54,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:47:54,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:47:54,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729547088] [2022-01-18 11:47:54,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:47:54,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:47:54,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:54,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:47:54,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:47:54,832 INFO L87 Difference]: Start difference. First operand has 104505 states, 104504 states have (on average 4.851670749444997) internal successors, (507019), 104504 states have internal predecessors, (507019), 0 states have call successors, (0), 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 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:47:56,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:56,972 INFO L93 Difference]: Finished difference Result 158429 states and 760029 transitions. [2022-01-18 11:47:56,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:47:56,973 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:47:56,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:58,049 INFO L225 Difference]: With dead ends: 158429 [2022-01-18 11:47:58,050 INFO L226 Difference]: Without dead ends: 102004 [2022-01-18 11:47:58,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2022-01-18 11:47:58,053 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 434 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:58,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 743 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:47:58,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102004 states. [2022-01-18 11:48:01,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102004 to 102004. [2022-01-18 11:48:01,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102004 states, 102003 states have (on average 4.842798741213493) internal successors, (493980), 102003 states have internal predecessors, (493980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:02,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102004 states to 102004 states and 493980 transitions. [2022-01-18 11:48:02,912 INFO L78 Accepts]: Start accepts. Automaton has 102004 states and 493980 transitions. Word has length 141 [2022-01-18 11:48:02,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:02,912 INFO L470 AbstractCegarLoop]: Abstraction has 102004 states and 493980 transitions. [2022-01-18 11:48:02,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 102004 states and 493980 transitions. [2022-01-18 11:48:03,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:48:03,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:03,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:03,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 11:48:03,353 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:48:03,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:03,354 INFO L85 PathProgramCache]: Analyzing trace with hash 821861329, now seen corresponding path program 2 times [2022-01-18 11:48:03,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:03,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740396758] [2022-01-18 11:48:03,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:03,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:03,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:48:03,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:03,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740396758] [2022-01-18 11:48:03,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740396758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:48:03,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:48:03,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:48:03,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413666527] [2022-01-18 11:48:03,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:48:03,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:48:03,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:03,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:48:03,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:48:03,476 INFO L87 Difference]: Start difference. First operand 102004 states and 493980 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:06,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:06,397 INFO L93 Difference]: Finished difference Result 271997 states and 1302481 transitions. [2022-01-18 11:48:06,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:48:06,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:48:06,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:08,436 INFO L225 Difference]: With dead ends: 271997 [2022-01-18 11:48:08,436 INFO L226 Difference]: Without dead ends: 271997 [2022-01-18 11:48:08,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:48:08,437 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 222 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:08,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 875 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:48:09,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271997 states. [2022-01-18 11:48:14,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271997 to 117782. [2022-01-18 11:48:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117782 states, 117781 states have (on average 4.82076905443153) internal successors, (567795), 117781 states have internal predecessors, (567795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:16,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117782 states to 117782 states and 567795 transitions. [2022-01-18 11:48:16,131 INFO L78 Accepts]: Start accepts. Automaton has 117782 states and 567795 transitions. Word has length 141 [2022-01-18 11:48:16,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:16,132 INFO L470 AbstractCegarLoop]: Abstraction has 117782 states and 567795 transitions. [2022-01-18 11:48:16,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 117782 states and 567795 transitions. [2022-01-18 11:48:16,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:48:16,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:16,540 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] [2022-01-18 11:48:16,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 11:48:16,540 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:48:16,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:16,541 INFO L85 PathProgramCache]: Analyzing trace with hash 604336243, now seen corresponding path program 3 times [2022-01-18 11:48:16,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:16,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737155676] [2022-01-18 11:48:16,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:16,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:16,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:48:16,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:16,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737155676] [2022-01-18 11:48:16,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737155676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:48:16,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:48:16,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 11:48:16,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351661691] [2022-01-18 11:48:16,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:48:16,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:48:16,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:16,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:48:16,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:48:16,681 INFO L87 Difference]: Start difference. First operand 117782 states and 567795 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:19,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:19,453 INFO L93 Difference]: Finished difference Result 228958 states and 1099039 transitions. [2022-01-18 11:48:19,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:48:19,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:48:19,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:20,799 INFO L225 Difference]: With dead ends: 228958 [2022-01-18 11:48:20,800 INFO L226 Difference]: Without dead ends: 228958 [2022-01-18 11:48:20,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:48:20,801 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 262 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:20,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 1048 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:48:21,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228958 states. [2022-01-18 11:48:26,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228958 to 122695. [2022-01-18 11:48:26,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122695 states, 122694 states have (on average 4.812623274161735) internal successors, (590480), 122694 states have internal predecessors, (590480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:27,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122695 states to 122695 states and 590480 transitions. [2022-01-18 11:48:27,215 INFO L78 Accepts]: Start accepts. Automaton has 122695 states and 590480 transitions. Word has length 141 [2022-01-18 11:48:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:27,215 INFO L470 AbstractCegarLoop]: Abstraction has 122695 states and 590480 transitions. [2022-01-18 11:48:27,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:27,216 INFO L276 IsEmpty]: Start isEmpty. Operand 122695 states and 590480 transitions. [2022-01-18 11:48:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:48:28,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:28,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:28,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 11:48:28,086 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:48:28,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:28,086 INFO L85 PathProgramCache]: Analyzing trace with hash -427148241, now seen corresponding path program 4 times [2022-01-18 11:48:28,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:28,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455259006] [2022-01-18 11:48:28,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:28,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:28,217 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 11:48:28,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:28,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455259006] [2022-01-18 11:48:28,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455259006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:48:28,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:48:28,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:48:28,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99826733] [2022-01-18 11:48:28,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:48:28,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:48:28,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:28,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:48:28,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:48:28,219 INFO L87 Difference]: Start difference. First operand 122695 states and 590480 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:31,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:31,305 INFO L93 Difference]: Finished difference Result 293039 states and 1388213 transitions. [2022-01-18 11:48:31,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:48:31,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:48:31,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:33,467 INFO L225 Difference]: With dead ends: 293039 [2022-01-18 11:48:33,468 INFO L226 Difference]: Without dead ends: 293039 [2022-01-18 11:48:33,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:48:33,476 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 323 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:33,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 618 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:48:34,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293039 states. [2022-01-18 11:48:39,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293039 to 150410. [2022-01-18 11:48:39,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150410 states, 150409 states have (on average 4.741823960002393) internal successors, (713213), 150409 states have internal predecessors, (713213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:41,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150410 states to 150410 states and 713213 transitions. [2022-01-18 11:48:41,014 INFO L78 Accepts]: Start accepts. Automaton has 150410 states and 713213 transitions. Word has length 141 [2022-01-18 11:48:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:41,014 INFO L470 AbstractCegarLoop]: Abstraction has 150410 states and 713213 transitions. [2022-01-18 11:48:41,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:41,015 INFO L276 IsEmpty]: Start isEmpty. Operand 150410 states and 713213 transitions. [2022-01-18 11:48:41,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:48:41,487 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:41,487 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] [2022-01-18 11:48:41,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 11:48:41,487 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:48:41,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:41,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1402004545, now seen corresponding path program 5 times [2022-01-18 11:48:41,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:41,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616014747] [2022-01-18 11:48:41,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:41,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:42,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:48:42,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:42,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616014747] [2022-01-18 11:48:42,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616014747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:48:42,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:48:42,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:48:42,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012988860] [2022-01-18 11:48:42,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:48:42,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:48:42,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:42,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:48:42,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:48:42,175 INFO L87 Difference]: Start difference. First operand 150410 states and 713213 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:44,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:44,051 INFO L93 Difference]: Finished difference Result 190749 states and 906790 transitions. [2022-01-18 11:48:44,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:48:44,051 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:48:44,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:45,007 INFO L225 Difference]: With dead ends: 190749 [2022-01-18 11:48:45,008 INFO L226 Difference]: Without dead ends: 190707 [2022-01-18 11:48:45,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:48:45,008 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 273 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:45,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 956 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:48:45,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190707 states. [2022-01-18 11:48:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190707 to 151284. [2022-01-18 11:48:50,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151284 states, 151283 states have (on average 4.737412663683296) internal successors, (716690), 151283 states have internal predecessors, (716690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:52,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151284 states to 151284 states and 716690 transitions. [2022-01-18 11:48:52,331 INFO L78 Accepts]: Start accepts. Automaton has 151284 states and 716690 transitions. Word has length 141 [2022-01-18 11:48:52,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:52,332 INFO L470 AbstractCegarLoop]: Abstraction has 151284 states and 716690 transitions. [2022-01-18 11:48:52,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:52,332 INFO L276 IsEmpty]: Start isEmpty. Operand 151284 states and 716690 transitions. [2022-01-18 11:48:52,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:48:52,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:52,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:52,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 11:48:52,964 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:48:52,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:52,965 INFO L85 PathProgramCache]: Analyzing trace with hash 967658261, now seen corresponding path program 6 times [2022-01-18 11:48:52,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:52,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055507515] [2022-01-18 11:48:52,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:52,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:48:53,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:53,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055507515] [2022-01-18 11:48:53,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055507515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:48:53,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:48:53,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 11:48:53,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336240735] [2022-01-18 11:48:53,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:48:53,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:48:53,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:53,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:48:53,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:48:53,173 INFO L87 Difference]: Start difference. First operand 151284 states and 716690 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:48:56,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:56,456 INFO L93 Difference]: Finished difference Result 258429 states and 1224141 transitions. [2022-01-18 11:48:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:48:56,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:48:56,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:58,436 INFO L225 Difference]: With dead ends: 258429 [2022-01-18 11:48:58,436 INFO L226 Difference]: Without dead ends: 258357 [2022-01-18 11:48:58,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:48:58,437 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 333 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:58,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 847 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:48:58,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258357 states. [2022-01-18 11:49:03,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258357 to 156638. [2022-01-18 11:49:04,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156638 states, 156637 states have (on average 4.721623881969139) internal successors, (739581), 156637 states have internal predecessors, (739581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:05,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156638 states to 156638 states and 739581 transitions. [2022-01-18 11:49:05,509 INFO L78 Accepts]: Start accepts. Automaton has 156638 states and 739581 transitions. Word has length 141 [2022-01-18 11:49:05,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:05,510 INFO L470 AbstractCegarLoop]: Abstraction has 156638 states and 739581 transitions. [2022-01-18 11:49:05,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:05,510 INFO L276 IsEmpty]: Start isEmpty. Operand 156638 states and 739581 transitions. [2022-01-18 11:49:06,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:49:06,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:06,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:06,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 11:49:06,593 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:49:06,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:06,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1073003719, now seen corresponding path program 7 times [2022-01-18 11:49:06,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:06,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609976651] [2022-01-18 11:49:06,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:06,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:06,687 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 11:49:06,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:06,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609976651] [2022-01-18 11:49:06,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609976651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:49:06,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:49:06,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:49:06,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796805326] [2022-01-18 11:49:06,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:49:06,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:49:06,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:06,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:49:06,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:49:06,689 INFO L87 Difference]: Start difference. First operand 156638 states and 739581 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:09,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:09,710 INFO L93 Difference]: Finished difference Result 310182 states and 1458829 transitions. [2022-01-18 11:49:09,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:49:09,710 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:49:09,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:12,052 INFO L225 Difference]: With dead ends: 310182 [2022-01-18 11:49:12,053 INFO L226 Difference]: Without dead ends: 310098 [2022-01-18 11:49:12,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:49:12,053 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 389 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:12,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 754 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:49:12,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310098 states. [2022-01-18 11:49:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310098 to 167480. [2022-01-18 11:49:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167480 states, 167479 states have (on average 4.689590933788714) internal successors, (785408), 167479 states have internal predecessors, (785408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:20,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167480 states to 167480 states and 785408 transitions. [2022-01-18 11:49:20,274 INFO L78 Accepts]: Start accepts. Automaton has 167480 states and 785408 transitions. Word has length 141 [2022-01-18 11:49:20,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:20,275 INFO L470 AbstractCegarLoop]: Abstraction has 167480 states and 785408 transitions. [2022-01-18 11:49:20,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand 167480 states and 785408 transitions. [2022-01-18 11:49:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:49:20,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:20,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:20,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 11:49:20,805 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:49:20,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:20,806 INFO L85 PathProgramCache]: Analyzing trace with hash -253399513, now seen corresponding path program 8 times [2022-01-18 11:49:20,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:20,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609144223] [2022-01-18 11:49:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:20,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:49:20,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:20,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609144223] [2022-01-18 11:49:20,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609144223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:49:20,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:49:20,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:49:20,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092206385] [2022-01-18 11:49:20,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:49:20,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:49:20,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:20,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:49:20,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:49:20,885 INFO L87 Difference]: Start difference. First operand 167480 states and 785408 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:24,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:24,002 INFO L93 Difference]: Finished difference Result 312110 states and 1463065 transitions. [2022-01-18 11:49:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:49:24,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:49:24,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:27,109 INFO L225 Difference]: With dead ends: 312110 [2022-01-18 11:49:27,109 INFO L226 Difference]: Without dead ends: 311996 [2022-01-18 11:49:27,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:49:27,111 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 295 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:27,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 733 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:49:27,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311996 states. [2022-01-18 11:49:34,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311996 to 177665. [2022-01-18 11:49:35,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177665 states, 177664 states have (on average 4.663612211815562) internal successors, (828556), 177664 states have internal predecessors, (828556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:36,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177665 states to 177665 states and 828556 transitions. [2022-01-18 11:49:36,634 INFO L78 Accepts]: Start accepts. Automaton has 177665 states and 828556 transitions. Word has length 141 [2022-01-18 11:49:36,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:36,634 INFO L470 AbstractCegarLoop]: Abstraction has 177665 states and 828556 transitions. [2022-01-18 11:49:36,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:36,634 INFO L276 IsEmpty]: Start isEmpty. Operand 177665 states and 828556 transitions. [2022-01-18 11:49:37,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:49:37,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:37,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:37,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 11:49:37,165 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:49:37,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:37,165 INFO L85 PathProgramCache]: Analyzing trace with hash -711007663, now seen corresponding path program 9 times [2022-01-18 11:49:37,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:37,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223577197] [2022-01-18 11:49:37,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:37,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:37,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:49:37,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:37,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223577197] [2022-01-18 11:49:37,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223577197] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:49:37,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:49:37,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:49:37,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580625957] [2022-01-18 11:49:37,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:49:37,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:49:37,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:37,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:49:37,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:49:37,251 INFO L87 Difference]: Start difference. First operand 177665 states and 828556 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:40,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:40,207 INFO L93 Difference]: Finished difference Result 328803 states and 1527610 transitions. [2022-01-18 11:49:40,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:49:40,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:49:40,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:42,670 INFO L225 Difference]: With dead ends: 328803 [2022-01-18 11:49:42,670 INFO L226 Difference]: Without dead ends: 328599 [2022-01-18 11:49:42,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:49:42,671 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 327 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:42,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 615 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:49:43,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328599 states. [2022-01-18 11:49:49,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328599 to 187071. [2022-01-18 11:49:50,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187071 states, 187070 states have (on average 4.6315015769498045) internal successors, (866415), 187070 states have internal predecessors, (866415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187071 states to 187071 states and 866415 transitions. [2022-01-18 11:49:51,668 INFO L78 Accepts]: Start accepts. Automaton has 187071 states and 866415 transitions. Word has length 141 [2022-01-18 11:49:51,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:51,669 INFO L470 AbstractCegarLoop]: Abstraction has 187071 states and 866415 transitions. [2022-01-18 11:49:51,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:51,669 INFO L276 IsEmpty]: Start isEmpty. Operand 187071 states and 866415 transitions. [2022-01-18 11:49:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:49:52,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:52,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:52,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 11:49:52,816 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:49:52,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:52,816 INFO L85 PathProgramCache]: Analyzing trace with hash -565532079, now seen corresponding path program 10 times [2022-01-18 11:49:52,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:52,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629532140] [2022-01-18 11:49:52,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:52,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:52,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:49:52,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:52,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629532140] [2022-01-18 11:49:52,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629532140] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:49:52,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:49:52,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:49:52,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624640314] [2022-01-18 11:49:52,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:49:52,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:49:52,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:52,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:49:52,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:49:52,892 INFO L87 Difference]: Start difference. First operand 187071 states and 866415 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:49:56,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:56,030 INFO L93 Difference]: Finished difference Result 332309 states and 1538394 transitions. [2022-01-18 11:49:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:49:56,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:49:56,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:58,569 INFO L225 Difference]: With dead ends: 332309 [2022-01-18 11:49:58,570 INFO L226 Difference]: Without dead ends: 332141 [2022-01-18 11:49:58,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:49:58,571 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 160 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:58,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 776 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:49:59,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332141 states. [2022-01-18 11:50:05,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332141 to 194456. [2022-01-18 11:50:05,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194456 states, 194455 states have (on average 4.603584376848114) internal successors, (895190), 194455 states have internal predecessors, (895190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194456 states to 194456 states and 895190 transitions. [2022-01-18 11:50:07,525 INFO L78 Accepts]: Start accepts. Automaton has 194456 states and 895190 transitions. Word has length 141 [2022-01-18 11:50:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:07,526 INFO L470 AbstractCegarLoop]: Abstraction has 194456 states and 895190 transitions. [2022-01-18 11:50:07,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:07,526 INFO L276 IsEmpty]: Start isEmpty. Operand 194456 states and 895190 transitions. [2022-01-18 11:50:08,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:50:08,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:50:08,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:50:08,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 11:50:08,693 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:50:08,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:50:08,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2079323817, now seen corresponding path program 11 times [2022-01-18 11:50:08,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:50:08,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124436590] [2022-01-18 11:50:08,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:50:08,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:50:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:08,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:50:08,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:50:08,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124436590] [2022-01-18 11:50:08,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124436590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:50:08,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:50:08,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:50:08,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679467994] [2022-01-18 11:50:08,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:50:08,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:50:08,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:08,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:50:08,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:50:08,772 INFO L87 Difference]: Start difference. First operand 194456 states and 895190 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:12,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:50:12,359 INFO L93 Difference]: Finished difference Result 333722 states and 1542463 transitions. [2022-01-18 11:50:12,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:50:12,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:50:12,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:50:15,501 INFO L225 Difference]: With dead ends: 333722 [2022-01-18 11:50:15,501 INFO L226 Difference]: Without dead ends: 333542 [2022-01-18 11:50:15,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:50:15,502 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 226 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:50:15,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 607 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:50:16,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333542 states. [2022-01-18 11:50:22,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333542 to 200990. [2022-01-18 11:50:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200990 states, 200989 states have (on average 4.584932508744259) internal successors, (921521), 200989 states have internal predecessors, (921521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:24,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200990 states to 200990 states and 921521 transitions. [2022-01-18 11:50:24,863 INFO L78 Accepts]: Start accepts. Automaton has 200990 states and 921521 transitions. Word has length 141 [2022-01-18 11:50:24,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:24,863 INFO L470 AbstractCegarLoop]: Abstraction has 200990 states and 921521 transitions. [2022-01-18 11:50:24,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:24,863 INFO L276 IsEmpty]: Start isEmpty. Operand 200990 states and 921521 transitions. [2022-01-18 11:50:26,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:50:26,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:50:26,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:50:26,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 11:50:26,120 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:50:26,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:50:26,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1277658205, now seen corresponding path program 12 times [2022-01-18 11:50:26,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:50:26,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299316203] [2022-01-18 11:50:26,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:50:26,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:50:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:26,189 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 11:50:26,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:50:26,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299316203] [2022-01-18 11:50:26,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299316203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:50:26,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:50:26,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:50:26,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848960260] [2022-01-18 11:50:26,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:50:26,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:50:26,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:26,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:50:26,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:50:26,190 INFO L87 Difference]: Start difference. First operand 200990 states and 921521 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:29,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:50:29,301 INFO L93 Difference]: Finished difference Result 330126 states and 1519031 transitions. [2022-01-18 11:50:29,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:50:29,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:50:29,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:50:31,638 INFO L225 Difference]: With dead ends: 330126 [2022-01-18 11:50:31,638 INFO L226 Difference]: Without dead ends: 330126 [2022-01-18 11:50:31,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:50:31,638 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 258 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:50:31,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 618 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:50:32,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330126 states. [2022-01-18 11:50:38,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330126 to 210063. [2022-01-18 11:50:39,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210063 states, 210062 states have (on average 4.540811760337424) internal successors, (953852), 210062 states have internal predecessors, (953852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210063 states to 210063 states and 953852 transitions. [2022-01-18 11:50:40,815 INFO L78 Accepts]: Start accepts. Automaton has 210063 states and 953852 transitions. Word has length 141 [2022-01-18 11:50:40,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:40,815 INFO L470 AbstractCegarLoop]: Abstraction has 210063 states and 953852 transitions. [2022-01-18 11:50:40,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:40,815 INFO L276 IsEmpty]: Start isEmpty. Operand 210063 states and 953852 transitions. [2022-01-18 11:50:42,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:50:42,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:50:42,119 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] [2022-01-18 11:50:42,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 11:50:42,119 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:50:42,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:50:42,119 INFO L85 PathProgramCache]: Analyzing trace with hash 952884763, now seen corresponding path program 13 times [2022-01-18 11:50:42,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:50:42,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138600577] [2022-01-18 11:50:42,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:50:42,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:50:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:50:42,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:50:42,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138600577] [2022-01-18 11:50:42,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138600577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:50:42,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:50:42,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 11:50:42,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547442522] [2022-01-18 11:50:42,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:50:42,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:50:42,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:42,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:50:42,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:50:42,195 INFO L87 Difference]: Start difference. First operand 210063 states and 953852 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:45,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:50:45,501 INFO L93 Difference]: Finished difference Result 366444 states and 1666910 transitions. [2022-01-18 11:50:45,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:50:45,502 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:50:45,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:50:48,101 INFO L225 Difference]: With dead ends: 366444 [2022-01-18 11:50:48,101 INFO L226 Difference]: Without dead ends: 366444 [2022-01-18 11:50:48,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:50:48,102 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 366 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:50:48,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 876 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:50:49,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366444 states. [2022-01-18 11:50:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366444 to 227658. [2022-01-18 11:50:57,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227658 states, 227657 states have (on average 4.498842557004616) internal successors, (1024193), 227657 states have internal predecessors, (1024193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:59,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227658 states to 227658 states and 1024193 transitions. [2022-01-18 11:50:59,858 INFO L78 Accepts]: Start accepts. Automaton has 227658 states and 1024193 transitions. Word has length 141 [2022-01-18 11:50:59,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:59,864 INFO L470 AbstractCegarLoop]: Abstraction has 227658 states and 1024193 transitions. [2022-01-18 11:50:59,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:50:59,864 INFO L276 IsEmpty]: Start isEmpty. Operand 227658 states and 1024193 transitions. [2022-01-18 11:51:01,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:51:01,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:01,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:01,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 11:51:01,387 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:51:01,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:01,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2143037529, now seen corresponding path program 14 times [2022-01-18 11:51:01,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:01,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826441189] [2022-01-18 11:51:01,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:01,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:01,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:51:01,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:01,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826441189] [2022-01-18 11:51:01,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826441189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:51:01,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:51:01,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:51:01,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648404311] [2022-01-18 11:51:01,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:51:01,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:51:01,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:01,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:51:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:51:01,711 INFO L87 Difference]: Start difference. First operand 227658 states and 1024193 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:05,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:05,252 INFO L93 Difference]: Finished difference Result 303105 states and 1370154 transitions. [2022-01-18 11:51:05,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:51:05,253 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:51:05,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:06,903 INFO L225 Difference]: With dead ends: 303105 [2022-01-18 11:51:06,904 INFO L226 Difference]: Without dead ends: 177480 [2022-01-18 11:51:06,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:51:06,912 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 493 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:06,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [493 Valid, 684 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:51:07,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177480 states. [2022-01-18 11:51:12,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177480 to 177480. [2022-01-18 11:51:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177480 states, 177479 states have (on average 4.445680897458291) internal successors, (789015), 177479 states have internal predecessors, (789015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:13,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177480 states to 177480 states and 789015 transitions. [2022-01-18 11:51:13,874 INFO L78 Accepts]: Start accepts. Automaton has 177480 states and 789015 transitions. Word has length 141 [2022-01-18 11:51:13,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:13,874 INFO L470 AbstractCegarLoop]: Abstraction has 177480 states and 789015 transitions. [2022-01-18 11:51:13,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:13,874 INFO L276 IsEmpty]: Start isEmpty. Operand 177480 states and 789015 transitions. [2022-01-18 11:51:14,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:51:14,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:14,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:14,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 11:51:14,377 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:51:14,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:14,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1084321801, now seen corresponding path program 15 times [2022-01-18 11:51:14,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:14,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408240996] [2022-01-18 11:51:14,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:14,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:51:14,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:14,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408240996] [2022-01-18 11:51:14,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408240996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:51:14,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:51:14,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:51:14,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233388889] [2022-01-18 11:51:14,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:51:14,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:51:14,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:14,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:51:14,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:51:14,456 INFO L87 Difference]: Start difference. First operand 177480 states and 789015 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:17,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:17,406 INFO L93 Difference]: Finished difference Result 290046 states and 1290674 transitions. [2022-01-18 11:51:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 11:51:17,407 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:51:17,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:19,496 INFO L225 Difference]: With dead ends: 290046 [2022-01-18 11:51:19,496 INFO L226 Difference]: Without dead ends: 289236 [2022-01-18 11:51:19,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:51:19,496 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 483 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:19,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 907 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:51:20,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289236 states. [2022-01-18 11:51:26,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289236 to 182127. [2022-01-18 11:51:26,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182127 states, 182126 states have (on average 4.422443802642126) internal successors, (805442), 182126 states have internal predecessors, (805442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:27,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182127 states to 182127 states and 805442 transitions. [2022-01-18 11:51:27,870 INFO L78 Accepts]: Start accepts. Automaton has 182127 states and 805442 transitions. Word has length 141 [2022-01-18 11:51:27,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:27,871 INFO L470 AbstractCegarLoop]: Abstraction has 182127 states and 805442 transitions. [2022-01-18 11:51:27,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:27,871 INFO L276 IsEmpty]: Start isEmpty. Operand 182127 states and 805442 transitions. [2022-01-18 11:51:28,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:51:28,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:28,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:28,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 11:51:28,395 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:51:28,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:28,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1199409477, now seen corresponding path program 16 times [2022-01-18 11:51:28,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:28,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021776734] [2022-01-18 11:51:28,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:28,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:28,496 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 11:51:28,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:28,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021776734] [2022-01-18 11:51:28,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021776734] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:51:28,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:51:28,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:51:28,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761740539] [2022-01-18 11:51:28,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:51:28,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:51:28,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:28,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:51:28,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:51:28,499 INFO L87 Difference]: Start difference. First operand 182127 states and 805442 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:30,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:30,843 INFO L93 Difference]: Finished difference Result 226335 states and 1006138 transitions. [2022-01-18 11:51:30,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:51:30,843 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:51:30,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:33,345 INFO L225 Difference]: With dead ends: 226335 [2022-01-18 11:51:33,345 INFO L226 Difference]: Without dead ends: 226209 [2022-01-18 11:51:33,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:51:33,346 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 345 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:33,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 1111 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:51:33,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226209 states. [2022-01-18 11:51:38,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226209 to 177387. [2022-01-18 11:51:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177387 states, 177386 states have (on average 4.423066081877939) internal successors, (784590), 177386 states have internal predecessors, (784590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:40,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177387 states to 177387 states and 784590 transitions. [2022-01-18 11:51:40,369 INFO L78 Accepts]: Start accepts. Automaton has 177387 states and 784590 transitions. Word has length 141 [2022-01-18 11:51:40,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:40,369 INFO L470 AbstractCegarLoop]: Abstraction has 177387 states and 784590 transitions. [2022-01-18 11:51:40,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:40,369 INFO L276 IsEmpty]: Start isEmpty. Operand 177387 states and 784590 transitions. [2022-01-18 11:51:41,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:51:41,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:41,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:41,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 11:51:41,468 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:51:41,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:41,469 INFO L85 PathProgramCache]: Analyzing trace with hash 246859135, now seen corresponding path program 17 times [2022-01-18 11:51:41,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:41,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683213298] [2022-01-18 11:51:41,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:41,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:51:41,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:41,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683213298] [2022-01-18 11:51:41,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683213298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:51:41,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:51:41,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:51:41,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573338591] [2022-01-18 11:51:41,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:51:41,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:51:41,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:41,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:51:41,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:51:41,573 INFO L87 Difference]: Start difference. First operand 177387 states and 784590 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:43,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:43,615 INFO L93 Difference]: Finished difference Result 221691 states and 985454 transitions. [2022-01-18 11:51:43,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:51:43,615 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:51:43,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:45,226 INFO L225 Difference]: With dead ends: 221691 [2022-01-18 11:51:45,226 INFO L226 Difference]: Without dead ends: 221613 [2022-01-18 11:51:45,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=125, Unknown=0, NotChecked=0, Total=210 [2022-01-18 11:51:45,226 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 388 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:45,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 892 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:51:45,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221613 states. [2022-01-18 11:51:50,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221613 to 177441. [2022-01-18 11:51:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177441 states, 177440 states have (on average 4.42204688908927) internal successors, (784648), 177440 states have internal predecessors, (784648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:51,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177441 states to 177441 states and 784648 transitions. [2022-01-18 11:51:51,810 INFO L78 Accepts]: Start accepts. Automaton has 177441 states and 784648 transitions. Word has length 141 [2022-01-18 11:51:51,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:51,811 INFO L470 AbstractCegarLoop]: Abstraction has 177441 states and 784648 transitions. [2022-01-18 11:51:51,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:51,811 INFO L276 IsEmpty]: Start isEmpty. Operand 177441 states and 784648 transitions. [2022-01-18 11:51:52,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:51:52,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:52,316 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] [2022-01-18 11:51:52,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 11:51:52,316 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:51:52,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:52,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1523208277, now seen corresponding path program 18 times [2022-01-18 11:51:52,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:52,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271775035] [2022-01-18 11:51:52,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:52,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:52,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:51:52,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:52,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271775035] [2022-01-18 11:51:52,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271775035] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:51:52,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:51:52,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 11:51:52,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6752261] [2022-01-18 11:51:52,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:51:52,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:51:52,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:52,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:51:52,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:51:52,418 INFO L87 Difference]: Start difference. First operand 177441 states and 784648 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:51:55,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:55,428 INFO L93 Difference]: Finished difference Result 314994 states and 1399885 transitions. [2022-01-18 11:51:55,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:51:55,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:51:55,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:57,664 INFO L225 Difference]: With dead ends: 314994 [2022-01-18 11:51:57,664 INFO L226 Difference]: Without dead ends: 314328 [2022-01-18 11:51:57,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:51:57,665 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 243 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:57,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 1106 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:51:58,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314328 states. [2022-01-18 11:52:04,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314328 to 179229. [2022-01-18 11:52:04,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179229 states, 179228 states have (on average 4.423940455732363) internal successors, (792894), 179228 states have internal predecessors, (792894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:06,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179229 states to 179229 states and 792894 transitions. [2022-01-18 11:52:06,164 INFO L78 Accepts]: Start accepts. Automaton has 179229 states and 792894 transitions. Word has length 141 [2022-01-18 11:52:06,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:52:06,164 INFO L470 AbstractCegarLoop]: Abstraction has 179229 states and 792894 transitions. [2022-01-18 11:52:06,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:06,165 INFO L276 IsEmpty]: Start isEmpty. Operand 179229 states and 792894 transitions. [2022-01-18 11:52:06,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:52:06,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:52:06,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:52:06,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 11:52:06,672 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:52:06,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:52:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1615866215, now seen corresponding path program 19 times [2022-01-18 11:52:06,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:52:06,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68210272] [2022-01-18 11:52:06,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:52:06,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:52:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:52:06,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:52:06,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:52:06,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68210272] [2022-01-18 11:52:06,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68210272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:52:06,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:52:06,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:52:06,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293032032] [2022-01-18 11:52:06,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:52:06,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:52:06,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:52:06,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:52:06,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:52:06,754 INFO L87 Difference]: Start difference. First operand 179229 states and 792894 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:09,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:52:09,486 INFO L93 Difference]: Finished difference Result 285465 states and 1260995 transitions. [2022-01-18 11:52:09,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 11:52:09,487 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:52:09,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:52:11,471 INFO L225 Difference]: With dead ends: 285465 [2022-01-18 11:52:11,471 INFO L226 Difference]: Without dead ends: 284295 [2022-01-18 11:52:11,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:52:11,472 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 394 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:52:11,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1096 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:52:11,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284295 states. [2022-01-18 11:52:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284295 to 180687. [2022-01-18 11:52:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180687 states, 180686 states have (on average 4.40526659508761) internal successors, (795970), 180686 states have internal predecessors, (795970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180687 states to 180687 states and 795970 transitions. [2022-01-18 11:52:20,090 INFO L78 Accepts]: Start accepts. Automaton has 180687 states and 795970 transitions. Word has length 141 [2022-01-18 11:52:20,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:52:20,090 INFO L470 AbstractCegarLoop]: Abstraction has 180687 states and 795970 transitions. [2022-01-18 11:52:20,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:20,090 INFO L276 IsEmpty]: Start isEmpty. Operand 180687 states and 795970 transitions. [2022-01-18 11:52:21,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:52:21,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:52:21,202 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] [2022-01-18 11:52:21,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 11:52:21,202 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:52:21,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:52:21,203 INFO L85 PathProgramCache]: Analyzing trace with hash -193164333, now seen corresponding path program 20 times [2022-01-18 11:52:21,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:52:21,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442183556] [2022-01-18 11:52:21,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:52:21,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:52:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:52:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:52:21,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:52:21,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442183556] [2022-01-18 11:52:21,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442183556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:52:21,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:52:21,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 11:52:21,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929039653] [2022-01-18 11:52:21,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:52:21,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:52:21,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:52:21,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:52:21,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:52:21,278 INFO L87 Difference]: Start difference. First operand 180687 states and 795970 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:24,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:52:24,217 INFO L93 Difference]: Finished difference Result 326223 states and 1421452 transitions. [2022-01-18 11:52:24,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:52:24,217 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:52:24,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:52:26,469 INFO L225 Difference]: With dead ends: 326223 [2022-01-18 11:52:26,469 INFO L226 Difference]: Without dead ends: 320109 [2022-01-18 11:52:26,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:52:26,470 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 325 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:52:26,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 862 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:52:27,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320109 states. [2022-01-18 11:52:33,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320109 to 183759. [2022-01-18 11:52:33,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183759 states, 183758 states have (on average 4.354547829210157) internal successors, (800183), 183758 states have internal predecessors, (800183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:35,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183759 states to 183759 states and 800183 transitions. [2022-01-18 11:52:35,087 INFO L78 Accepts]: Start accepts. Automaton has 183759 states and 800183 transitions. Word has length 141 [2022-01-18 11:52:35,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:52:35,088 INFO L470 AbstractCegarLoop]: Abstraction has 183759 states and 800183 transitions. [2022-01-18 11:52:35,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:35,088 INFO L276 IsEmpty]: Start isEmpty. Operand 183759 states and 800183 transitions. [2022-01-18 11:52:35,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:52:35,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:52:35,625 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] [2022-01-18 11:52:35,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 11:52:35,625 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:52:35,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:52:35,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2137417589, now seen corresponding path program 21 times [2022-01-18 11:52:35,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:52:35,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142882524] [2022-01-18 11:52:35,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:52:35,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:52:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:52:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:52:35,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:52:35,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142882524] [2022-01-18 11:52:35,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142882524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:52:35,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:52:35,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:52:35,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512939330] [2022-01-18 11:52:35,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:52:35,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:52:35,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:52:35,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:52:35,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:52:35,754 INFO L87 Difference]: Start difference. First operand 183759 states and 800183 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:38,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:52:38,615 INFO L93 Difference]: Finished difference Result 306372 states and 1332238 transitions. [2022-01-18 11:52:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:52:38,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:52:38,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:52:40,700 INFO L225 Difference]: With dead ends: 306372 [2022-01-18 11:52:40,700 INFO L226 Difference]: Without dead ends: 303258 [2022-01-18 11:52:40,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:52:40,710 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 182 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:52:40,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 852 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:52:41,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303258 states. [2022-01-18 11:52:46,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303258 to 191373. [2022-01-18 11:52:47,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191373 states, 191372 states have (on average 4.3341815939635895) internal successors, (829441), 191372 states have internal predecessors, (829441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:48,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191373 states to 191373 states and 829441 transitions. [2022-01-18 11:52:48,556 INFO L78 Accepts]: Start accepts. Automaton has 191373 states and 829441 transitions. Word has length 141 [2022-01-18 11:52:48,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:52:48,556 INFO L470 AbstractCegarLoop]: Abstraction has 191373 states and 829441 transitions. [2022-01-18 11:52:48,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:48,556 INFO L276 IsEmpty]: Start isEmpty. Operand 191373 states and 829441 transitions. [2022-01-18 11:52:49,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:52:49,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:52:49,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:52:49,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 11:52:49,740 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:52:49,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:52:49,740 INFO L85 PathProgramCache]: Analyzing trace with hash -149484903, now seen corresponding path program 22 times [2022-01-18 11:52:49,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:52:49,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209137801] [2022-01-18 11:52:49,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:52:49,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:52:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:52:49,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:52:49,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:52:49,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209137801] [2022-01-18 11:52:49,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209137801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:52:49,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:52:49,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 11:52:49,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029348430] [2022-01-18 11:52:49,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:52:49,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:52:49,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:52:49,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:52:49,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:52:49,811 INFO L87 Difference]: Start difference. First operand 191373 states and 829441 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:52:52,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:52:52,830 INFO L93 Difference]: Finished difference Result 315306 states and 1357751 transitions. [2022-01-18 11:52:52,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:52:52,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:52:52,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:52:55,950 INFO L225 Difference]: With dead ends: 315306 [2022-01-18 11:52:55,950 INFO L226 Difference]: Without dead ends: 306678 [2022-01-18 11:52:55,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:52:55,951 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 341 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:52:55,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 831 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:52:56,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306678 states. [2022-01-18 11:53:03,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306678 to 179028. [2022-01-18 11:53:03,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179028 states, 179027 states have (on average 4.292229663682014) internal successors, (768425), 179027 states have internal predecessors, (768425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:04,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179028 states to 179028 states and 768425 transitions. [2022-01-18 11:53:04,989 INFO L78 Accepts]: Start accepts. Automaton has 179028 states and 768425 transitions. Word has length 141 [2022-01-18 11:53:04,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:53:04,989 INFO L470 AbstractCegarLoop]: Abstraction has 179028 states and 768425 transitions. [2022-01-18 11:53:04,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:04,989 INFO L276 IsEmpty]: Start isEmpty. Operand 179028 states and 768425 transitions. [2022-01-18 11:53:05,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:53:05,505 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:53:05,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:53:05,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 11:53:05,506 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:53:05,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:53:05,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1690572185, now seen corresponding path program 23 times [2022-01-18 11:53:05,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:53:05,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699744825] [2022-01-18 11:53:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:53:05,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:53:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:53:05,595 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 11:53:05,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:53:05,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699744825] [2022-01-18 11:53:05,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699744825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:53:05,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:53:05,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:53:05,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059597896] [2022-01-18 11:53:05,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:53:05,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:53:05,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:53:05,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:53:05,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:53:05,597 INFO L87 Difference]: Start difference. First operand 179028 states and 768425 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:08,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:53:08,521 INFO L93 Difference]: Finished difference Result 294069 states and 1262889 transitions. [2022-01-18 11:53:08,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:53:08,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:53:08,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:53:10,606 INFO L225 Difference]: With dead ends: 294069 [2022-01-18 11:53:10,606 INFO L226 Difference]: Without dead ends: 290727 [2022-01-18 11:53:10,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2022-01-18 11:53:10,608 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 457 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:53:10,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 1510 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:53:11,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290727 states. [2022-01-18 11:53:17,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290727 to 182253. [2022-01-18 11:53:17,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182253 states, 182252 states have (on average 4.257281127230428) internal successors, (775898), 182252 states have internal predecessors, (775898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:18,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182253 states to 182253 states and 775898 transitions. [2022-01-18 11:53:18,233 INFO L78 Accepts]: Start accepts. Automaton has 182253 states and 775898 transitions. Word has length 141 [2022-01-18 11:53:18,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:53:18,233 INFO L470 AbstractCegarLoop]: Abstraction has 182253 states and 775898 transitions. [2022-01-18 11:53:18,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:18,233 INFO L276 IsEmpty]: Start isEmpty. Operand 182253 states and 775898 transitions. [2022-01-18 11:53:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:53:19,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:53:19,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:53:19,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 11:53:19,434 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:53:19,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:53:19,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1816829631, now seen corresponding path program 24 times [2022-01-18 11:53:19,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:53:19,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761405427] [2022-01-18 11:53:19,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:53:19,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:53:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:53:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:53:19,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:53:19,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761405427] [2022-01-18 11:53:19,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761405427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:53:19,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:53:19,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:53:19,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984520914] [2022-01-18 11:53:19,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:53:19,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:53:19,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:53:19,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:53:19,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:53:19,558 INFO L87 Difference]: Start difference. First operand 182253 states and 775898 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:22,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:53:22,551 INFO L93 Difference]: Finished difference Result 295053 states and 1260752 transitions. [2022-01-18 11:53:22,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 11:53:22,551 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:53:22,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:53:24,021 INFO L225 Difference]: With dead ends: 295053 [2022-01-18 11:53:24,021 INFO L226 Difference]: Without dead ends: 294675 [2022-01-18 11:53:24,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:53:24,022 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 254 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:53:24,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 1216 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:53:25,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294675 states. [2022-01-18 11:53:30,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294675 to 176052. [2022-01-18 11:53:30,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176052 states, 176051 states have (on average 4.251858836359919) internal successors, (748544), 176051 states have internal predecessors, (748544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:32,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176052 states to 176052 states and 748544 transitions. [2022-01-18 11:53:32,231 INFO L78 Accepts]: Start accepts. Automaton has 176052 states and 748544 transitions. Word has length 141 [2022-01-18 11:53:32,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:53:32,231 INFO L470 AbstractCegarLoop]: Abstraction has 176052 states and 748544 transitions. [2022-01-18 11:53:32,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:32,231 INFO L276 IsEmpty]: Start isEmpty. Operand 176052 states and 748544 transitions. [2022-01-18 11:53:32,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:53:32,713 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:53:32,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:53:32,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 11:53:32,713 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:53:32,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:53:32,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1933344687, now seen corresponding path program 25 times [2022-01-18 11:53:32,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:53:32,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304708819] [2022-01-18 11:53:32,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:53:32,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:53:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:53:32,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:53:32,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:53:32,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304708819] [2022-01-18 11:53:32,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304708819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:53:32,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:53:32,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:53:32,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182030757] [2022-01-18 11:53:32,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:53:32,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:53:32,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:53:32,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:53:32,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:53:32,801 INFO L87 Difference]: Start difference. First operand 176052 states and 748544 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:53:35,323 INFO L93 Difference]: Finished difference Result 228912 states and 974446 transitions. [2022-01-18 11:53:35,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:53:35,323 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:53:35,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:53:37,029 INFO L225 Difference]: With dead ends: 228912 [2022-01-18 11:53:37,029 INFO L226 Difference]: Without dead ends: 228552 [2022-01-18 11:53:37,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=125, Unknown=0, NotChecked=0, Total=210 [2022-01-18 11:53:37,030 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 365 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:53:37,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 939 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:53:37,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228552 states. [2022-01-18 11:53:43,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228552 to 171852. [2022-01-18 11:53:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171852 states, 171851 states have (on average 4.253242634607887) internal successors, (730924), 171851 states have internal predecessors, (730924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:44,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171852 states to 171852 states and 730924 transitions. [2022-01-18 11:53:44,865 INFO L78 Accepts]: Start accepts. Automaton has 171852 states and 730924 transitions. Word has length 141 [2022-01-18 11:53:44,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:53:44,865 INFO L470 AbstractCegarLoop]: Abstraction has 171852 states and 730924 transitions. [2022-01-18 11:53:44,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:44,866 INFO L276 IsEmpty]: Start isEmpty. Operand 171852 states and 730924 transitions. [2022-01-18 11:53:45,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:53:45,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:53:45,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:53:45,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 11:53:45,331 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:53:45,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:53:45,331 INFO L85 PathProgramCache]: Analyzing trace with hash -657834469, now seen corresponding path program 26 times [2022-01-18 11:53:45,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:53:45,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409150991] [2022-01-18 11:53:45,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:53:45,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:53:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:53:45,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:53:45,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:53:45,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409150991] [2022-01-18 11:53:45,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409150991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:53:45,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:53:45,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 11:53:45,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815115394] [2022-01-18 11:53:45,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:53:45,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:53:45,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:53:45,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:53:45,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:53:45,398 INFO L87 Difference]: Start difference. First operand 171852 states and 730924 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:47,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:53:47,869 INFO L93 Difference]: Finished difference Result 228876 states and 955290 transitions. [2022-01-18 11:53:47,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:53:47,870 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:53:47,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:53:48,897 INFO L225 Difference]: With dead ends: 228876 [2022-01-18 11:53:48,897 INFO L226 Difference]: Without dead ends: 208872 [2022-01-18 11:53:48,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:53:48,899 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 280 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:53:48,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 1146 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:53:49,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208872 states. [2022-01-18 11:53:53,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208872 to 120180. [2022-01-18 11:53:53,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120180 states, 120179 states have (on average 4.154935554464591) internal successors, (499336), 120179 states have internal predecessors, (499336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:53,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120180 states to 120180 states and 499336 transitions. [2022-01-18 11:53:53,978 INFO L78 Accepts]: Start accepts. Automaton has 120180 states and 499336 transitions. Word has length 141 [2022-01-18 11:53:53,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:53:53,978 INFO L470 AbstractCegarLoop]: Abstraction has 120180 states and 499336 transitions. [2022-01-18 11:53:53,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:53,978 INFO L276 IsEmpty]: Start isEmpty. Operand 120180 states and 499336 transitions. [2022-01-18 11:53:54,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:53:54,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:53:54,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:53:54,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 11:53:54,298 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:53:54,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:53:54,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1946327095, now seen corresponding path program 27 times [2022-01-18 11:53:54,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:53:54,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015078299] [2022-01-18 11:53:54,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:53:54,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:53:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:53:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:53:54,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:53:54,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015078299] [2022-01-18 11:53:54,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015078299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:53:54,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:53:54,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 11:53:54,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075397932] [2022-01-18 11:53:54,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:53:54,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 11:53:54,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:53:54,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 11:53:54,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:53:54,422 INFO L87 Difference]: Start difference. First operand 120180 states and 499336 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:53:56,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:53:56,799 INFO L93 Difference]: Finished difference Result 199518 states and 829118 transitions. [2022-01-18 11:53:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:53:56,800 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:53:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:53:57,733 INFO L225 Difference]: With dead ends: 199518 [2022-01-18 11:53:57,733 INFO L226 Difference]: Without dead ends: 199218 [2022-01-18 11:53:57,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:53:57,734 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 320 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:53:57,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1341 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:53:58,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199218 states. [2022-01-18 11:54:01,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199218 to 120228. [2022-01-18 11:54:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120228 states, 120227 states have (on average 4.1533682117993465) internal successors, (499347), 120227 states have internal predecessors, (499347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120228 states to 120228 states and 499347 transitions. [2022-01-18 11:54:02,748 INFO L78 Accepts]: Start accepts. Automaton has 120228 states and 499347 transitions. Word has length 141 [2022-01-18 11:54:02,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:54:02,748 INFO L470 AbstractCegarLoop]: Abstraction has 120228 states and 499347 transitions. [2022-01-18 11:54:02,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:02,748 INFO L276 IsEmpty]: Start isEmpty. Operand 120228 states and 499347 transitions. [2022-01-18 11:54:03,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:54:03,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:54:03,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:54:03,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 11:54:03,067 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:54:03,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:54:03,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1141577571, now seen corresponding path program 28 times [2022-01-18 11:54:03,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:54:03,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139444284] [2022-01-18 11:54:03,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:54:03,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:54:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:54:03,170 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 11:54:03,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:54:03,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139444284] [2022-01-18 11:54:03,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139444284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:54:03,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:54:03,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 11:54:03,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95032145] [2022-01-18 11:54:03,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:54:03,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:54:03,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:54:03,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:54:03,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:54:03,171 INFO L87 Difference]: Start difference. First operand 120228 states and 499347 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:05,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:54:05,631 INFO L93 Difference]: Finished difference Result 226464 states and 939897 transitions. [2022-01-18 11:54:05,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:54:05,631 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:54:05,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:54:06,743 INFO L225 Difference]: With dead ends: 226464 [2022-01-18 11:54:06,743 INFO L226 Difference]: Without dead ends: 224466 [2022-01-18 11:54:06,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:54:06,744 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 238 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:54:06,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1242 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:54:07,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224466 states. [2022-01-18 11:54:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224466 to 128517. [2022-01-18 11:54:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128517 states, 128516 states have (on average 4.133368607799807) internal successors, (531204), 128516 states have internal predecessors, (531204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:12,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128517 states to 128517 states and 531204 transitions. [2022-01-18 11:54:12,051 INFO L78 Accepts]: Start accepts. Automaton has 128517 states and 531204 transitions. Word has length 141 [2022-01-18 11:54:12,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:54:12,051 INFO L470 AbstractCegarLoop]: Abstraction has 128517 states and 531204 transitions. [2022-01-18 11:54:12,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:12,051 INFO L276 IsEmpty]: Start isEmpty. Operand 128517 states and 531204 transitions. [2022-01-18 11:54:13,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:54:13,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:54:13,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:54:13,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 11:54:13,104 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:54:13,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:54:13,104 INFO L85 PathProgramCache]: Analyzing trace with hash 426694581, now seen corresponding path program 29 times [2022-01-18 11:54:13,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:54:13,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191017956] [2022-01-18 11:54:13,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:54:13,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:54:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:54:13,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:54:13,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:54:13,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191017956] [2022-01-18 11:54:13,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191017956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:54:13,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:54:13,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:54:13,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594547275] [2022-01-18 11:54:13,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:54:13,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:54:13,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:54:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:54:13,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:54:13,178 INFO L87 Difference]: Start difference. First operand 128517 states and 531204 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:15,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:54:15,148 INFO L93 Difference]: Finished difference Result 210015 states and 875829 transitions. [2022-01-18 11:54:15,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 11:54:15,149 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:54:15,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:54:16,115 INFO L225 Difference]: With dead ends: 210015 [2022-01-18 11:54:16,115 INFO L226 Difference]: Without dead ends: 204021 [2022-01-18 11:54:16,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:54:16,116 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 442 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:54:16,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 1091 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:54:16,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204021 states. [2022-01-18 11:54:20,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204021 to 122253. [2022-01-18 11:54:21,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122253 states, 122252 states have (on average 4.149085495533815) internal successors, (507234), 122252 states have internal predecessors, (507234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:21,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122253 states to 122253 states and 507234 transitions. [2022-01-18 11:54:21,706 INFO L78 Accepts]: Start accepts. Automaton has 122253 states and 507234 transitions. Word has length 141 [2022-01-18 11:54:21,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:54:21,706 INFO L470 AbstractCegarLoop]: Abstraction has 122253 states and 507234 transitions. [2022-01-18 11:54:21,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:21,706 INFO L276 IsEmpty]: Start isEmpty. Operand 122253 states and 507234 transitions. [2022-01-18 11:54:22,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:54:22,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:54:22,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:54:22,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 11:54:22,558 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:54:22,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:54:22,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2115452139, now seen corresponding path program 30 times [2022-01-18 11:54:22,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:54:22,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502514568] [2022-01-18 11:54:22,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:54:22,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:54:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:54:22,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:54:22,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:54:22,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502514568] [2022-01-18 11:54:22,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502514568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:54:22,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:54:22,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:54:22,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680939818] [2022-01-18 11:54:22,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:54:22,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:54:22,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:54:22,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:54:22,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:54:22,708 INFO L87 Difference]: Start difference. First operand 122253 states and 507234 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:54:24,931 INFO L93 Difference]: Finished difference Result 201573 states and 839286 transitions. [2022-01-18 11:54:24,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:54:24,931 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:54:24,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:54:26,418 INFO L225 Difference]: With dead ends: 201573 [2022-01-18 11:54:26,418 INFO L226 Difference]: Without dead ends: 198213 [2022-01-18 11:54:26,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2022-01-18 11:54:26,419 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 348 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:54:26,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 1285 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:54:26,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198213 states. [2022-01-18 11:54:30,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198213 to 122442. [2022-01-18 11:54:31,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122442 states, 122441 states have (on average 4.136865919095728) internal successors, (506522), 122441 states have internal predecessors, (506522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:31,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122442 states to 122442 states and 506522 transitions. [2022-01-18 11:54:31,541 INFO L78 Accepts]: Start accepts. Automaton has 122442 states and 506522 transitions. Word has length 141 [2022-01-18 11:54:31,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:54:31,542 INFO L470 AbstractCegarLoop]: Abstraction has 122442 states and 506522 transitions. [2022-01-18 11:54:31,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:31,542 INFO L276 IsEmpty]: Start isEmpty. Operand 122442 states and 506522 transitions. [2022-01-18 11:54:32,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:54:32,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:54:32,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:54:32,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 11:54:32,530 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:54:32,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:54:32,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1530504529, now seen corresponding path program 31 times [2022-01-18 11:54:32,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:54:32,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942192954] [2022-01-18 11:54:32,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:54:32,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:54:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:54:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:54:32,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:54:32,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942192954] [2022-01-18 11:54:32,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942192954] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:54:32,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:54:32,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:54:32,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041894851] [2022-01-18 11:54:32,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:54:32,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:54:32,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:54:32,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:54:32,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:54:32,613 INFO L87 Difference]: Start difference. First operand 122442 states and 506522 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:34,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:54:34,476 INFO L93 Difference]: Finished difference Result 199713 states and 815300 transitions. [2022-01-18 11:54:34,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:54:34,476 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:54:34,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:54:35,285 INFO L225 Difference]: With dead ends: 199713 [2022-01-18 11:54:35,285 INFO L226 Difference]: Without dead ends: 176373 [2022-01-18 11:54:35,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2022-01-18 11:54:35,285 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 474 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:54:35,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 1039 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:54:35,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176373 states. [2022-01-18 11:54:38,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176373 to 108414. [2022-01-18 11:54:39,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108414 states, 108413 states have (on average 4.092129172700691) internal successors, (443640), 108413 states have internal predecessors, (443640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:39,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108414 states to 108414 states and 443640 transitions. [2022-01-18 11:54:39,841 INFO L78 Accepts]: Start accepts. Automaton has 108414 states and 443640 transitions. Word has length 141 [2022-01-18 11:54:39,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:54:39,841 INFO L470 AbstractCegarLoop]: Abstraction has 108414 states and 443640 transitions. [2022-01-18 11:54:39,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:39,841 INFO L276 IsEmpty]: Start isEmpty. Operand 108414 states and 443640 transitions. [2022-01-18 11:54:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:54:40,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:54:40,127 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] [2022-01-18 11:54:40,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 11:54:40,128 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:54:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:54:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1722220939, now seen corresponding path program 32 times [2022-01-18 11:54:40,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:54:40,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043884652] [2022-01-18 11:54:40,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:54:40,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:54:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:54:40,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:54:40,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:54:40,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043884652] [2022-01-18 11:54:40,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043884652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:54:40,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:54:40,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:54:40,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117916588] [2022-01-18 11:54:40,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:54:40,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:54:40,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:54:40,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:54:40,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:54:40,224 INFO L87 Difference]: Start difference. First operand 108414 states and 443640 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:41,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:54:41,729 INFO L93 Difference]: Finished difference Result 148875 states and 608692 transitions. [2022-01-18 11:54:41,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:54:41,729 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:54:41,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:54:42,358 INFO L225 Difference]: With dead ends: 148875 [2022-01-18 11:54:42,359 INFO L226 Difference]: Without dead ends: 147741 [2022-01-18 11:54:42,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=79, Invalid=103, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:54:42,359 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 442 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:54:42,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 985 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:54:42,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147741 states. [2022-01-18 11:54:45,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147741 to 104922. [2022-01-18 11:54:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104922 states, 104921 states have (on average 4.077868110292505) internal successors, (427854), 104921 states have internal predecessors, (427854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:46,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104922 states to 104922 states and 427854 transitions. [2022-01-18 11:54:46,670 INFO L78 Accepts]: Start accepts. Automaton has 104922 states and 427854 transitions. Word has length 141 [2022-01-18 11:54:46,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:54:46,670 INFO L470 AbstractCegarLoop]: Abstraction has 104922 states and 427854 transitions. [2022-01-18 11:54:46,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:46,670 INFO L276 IsEmpty]: Start isEmpty. Operand 104922 states and 427854 transitions. [2022-01-18 11:54:46,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:54:46,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:54:46,966 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] [2022-01-18 11:54:46,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 11:54:46,966 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:54:46,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:54:46,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1943886693, now seen corresponding path program 33 times [2022-01-18 11:54:46,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:54:46,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321809647] [2022-01-18 11:54:46,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:54:46,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:54:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:54:47,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:54:47,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:54:47,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321809647] [2022-01-18 11:54:47,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321809647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:54:47,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:54:47,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:54:47,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90457404] [2022-01-18 11:54:47,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:54:47,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:54:47,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:54:47,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:54:47,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:54:47,045 INFO L87 Difference]: Start difference. First operand 104922 states and 427854 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:48,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:54:48,609 INFO L93 Difference]: Finished difference Result 146814 states and 598543 transitions. [2022-01-18 11:54:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:54:48,610 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:54:48,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:54:49,214 INFO L225 Difference]: With dead ends: 146814 [2022-01-18 11:54:49,214 INFO L226 Difference]: Without dead ends: 144222 [2022-01-18 11:54:49,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=161, Unknown=0, NotChecked=0, Total=272 [2022-01-18 11:54:49,215 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 466 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:54:49,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 1053 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:54:49,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144222 states. [2022-01-18 11:54:52,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144222 to 99549. [2022-01-18 11:54:52,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99549 states, 99548 states have (on average 4.071764374974887) internal successors, (405336), 99548 states have internal predecessors, (405336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:52,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99549 states to 99549 states and 405336 transitions. [2022-01-18 11:54:52,878 INFO L78 Accepts]: Start accepts. Automaton has 99549 states and 405336 transitions. Word has length 141 [2022-01-18 11:54:52,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:54:52,878 INFO L470 AbstractCegarLoop]: Abstraction has 99549 states and 405336 transitions. [2022-01-18 11:54:52,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:52,878 INFO L276 IsEmpty]: Start isEmpty. Operand 99549 states and 405336 transitions. [2022-01-18 11:54:53,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:54:53,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:54:53,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:54:53,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 11:54:53,706 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:54:53,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:54:53,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1642723309, now seen corresponding path program 34 times [2022-01-18 11:54:53,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:54:53,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706289646] [2022-01-18 11:54:53,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:54:53,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:54:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:54:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:54:53,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:54:53,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706289646] [2022-01-18 11:54:53,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706289646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:54:53,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:54:53,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 11:54:53,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447523769] [2022-01-18 11:54:53,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:54:53,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 11:54:53,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:54:53,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 11:54:53,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:54:53,825 INFO L87 Difference]: Start difference. First operand 99549 states and 405336 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:55,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:54:55,409 INFO L93 Difference]: Finished difference Result 136266 states and 556978 transitions. [2022-01-18 11:54:55,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:54:55,419 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:54:55,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:54:56,041 INFO L225 Difference]: With dead ends: 136266 [2022-01-18 11:54:56,041 INFO L226 Difference]: Without dead ends: 133950 [2022-01-18 11:54:56,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=209, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:54:56,041 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 405 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:54:56,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 1069 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:54:56,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133950 states. [2022-01-18 11:54:59,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133950 to 97029. [2022-01-18 11:54:59,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97029 states, 97028 states have (on average 4.0887166591087105) internal successors, (396720), 97028 states have internal predecessors, (396720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:59,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97029 states to 97029 states and 396720 transitions. [2022-01-18 11:54:59,496 INFO L78 Accepts]: Start accepts. Automaton has 97029 states and 396720 transitions. Word has length 141 [2022-01-18 11:54:59,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:54:59,496 INFO L470 AbstractCegarLoop]: Abstraction has 97029 states and 396720 transitions. [2022-01-18 11:54:59,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:54:59,496 INFO L276 IsEmpty]: Start isEmpty. Operand 97029 states and 396720 transitions. [2022-01-18 11:54:59,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:54:59,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:54:59,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:54:59,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 11:54:59,733 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:54:59,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:54:59,733 INFO L85 PathProgramCache]: Analyzing trace with hash -832542759, now seen corresponding path program 35 times [2022-01-18 11:54:59,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:54:59,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925847824] [2022-01-18 11:54:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:54:59,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:54:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:54:59,831 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 11:54:59,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:54:59,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925847824] [2022-01-18 11:54:59,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925847824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:54:59,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:54:59,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 11:54:59,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259281792] [2022-01-18 11:54:59,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:54:59,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 11:54:59,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:54:59,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 11:54:59,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:54:59,832 INFO L87 Difference]: Start difference. First operand 97029 states and 396720 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:01,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:01,674 INFO L93 Difference]: Finished difference Result 133902 states and 548635 transitions. [2022-01-18 11:55:01,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:55:01,675 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:01,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:55:02,385 INFO L225 Difference]: With dead ends: 133902 [2022-01-18 11:55:02,386 INFO L226 Difference]: Without dead ends: 132294 [2022-01-18 11:55:02,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=208, Invalid=344, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:55:02,386 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 527 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:55:02,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 1532 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:55:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132294 states. [2022-01-18 11:55:05,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132294 to 96933. [2022-01-18 11:55:05,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96933 states, 96932 states have (on average 4.088773573226592) internal successors, (396333), 96932 states have internal predecessors, (396333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:05,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96933 states to 96933 states and 396333 transitions. [2022-01-18 11:55:05,874 INFO L78 Accepts]: Start accepts. Automaton has 96933 states and 396333 transitions. Word has length 141 [2022-01-18 11:55:05,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:55:05,874 INFO L470 AbstractCegarLoop]: Abstraction has 96933 states and 396333 transitions. [2022-01-18 11:55:05,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:05,874 INFO L276 IsEmpty]: Start isEmpty. Operand 96933 states and 396333 transitions. [2022-01-18 11:55:06,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:55:06,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:55:06,115 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] [2022-01-18 11:55:06,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 11:55:06,116 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:55:06,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:55:06,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2124452193, now seen corresponding path program 36 times [2022-01-18 11:55:06,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:55:06,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680562655] [2022-01-18 11:55:06,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:55:06,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:55:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:55:06,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:55:06,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:55:06,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680562655] [2022-01-18 11:55:06,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680562655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:55:06,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:55:06,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 11:55:06,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443131872] [2022-01-18 11:55:06,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:55:06,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 11:55:06,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:55:06,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 11:55:06,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:55:06,665 INFO L87 Difference]: Start difference. First operand 96933 states and 396333 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:07,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:07,676 INFO L93 Difference]: Finished difference Result 136362 states and 557301 transitions. [2022-01-18 11:55:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:55:07,677 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:07,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:55:08,717 INFO L225 Difference]: With dead ends: 136362 [2022-01-18 11:55:08,718 INFO L226 Difference]: Without dead ends: 126858 [2022-01-18 11:55:08,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=209, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:55:08,718 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 475 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:55:08,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [475 Valid, 1353 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:55:08,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126858 states. [2022-01-18 11:55:11,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126858 to 92181. [2022-01-18 11:55:11,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92181 states, 92180 states have (on average 4.071696680407897) internal successors, (375329), 92180 states have internal predecessors, (375329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92181 states to 92181 states and 375329 transitions. [2022-01-18 11:55:11,983 INFO L78 Accepts]: Start accepts. Automaton has 92181 states and 375329 transitions. Word has length 141 [2022-01-18 11:55:11,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:55:11,984 INFO L470 AbstractCegarLoop]: Abstraction has 92181 states and 375329 transitions. [2022-01-18 11:55:11,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:11,984 INFO L276 IsEmpty]: Start isEmpty. Operand 92181 states and 375329 transitions. [2022-01-18 11:55:12,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:55:12,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:55:12,222 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] [2022-01-18 11:55:12,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 11:55:12,223 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:55:12,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:55:12,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1352740087, now seen corresponding path program 37 times [2022-01-18 11:55:12,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:55:12,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458793194] [2022-01-18 11:55:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:55:12,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:55:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:55:12,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:55:12,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:55:12,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458793194] [2022-01-18 11:55:12,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458793194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:55:12,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:55:12,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 11:55:12,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492119925] [2022-01-18 11:55:12,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:55:12,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 11:55:12,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:55:12,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 11:55:12,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:55:12,318 INFO L87 Difference]: Start difference. First operand 92181 states and 375329 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:13,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:13,911 INFO L93 Difference]: Finished difference Result 131118 states and 534548 transitions. [2022-01-18 11:55:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:55:13,911 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:13,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:55:14,468 INFO L225 Difference]: With dead ends: 131118 [2022-01-18 11:55:14,468 INFO L226 Difference]: Without dead ends: 125658 [2022-01-18 11:55:14,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=208, Invalid=344, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:55:14,469 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 556 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:55:14,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 1422 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:55:14,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125658 states. [2022-01-18 11:55:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125658 to 90981. [2022-01-18 11:55:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90981 states, 90980 states have (on average 4.085843042426907) internal successors, (371730), 90980 states have internal predecessors, (371730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:17,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90981 states to 90981 states and 371730 transitions. [2022-01-18 11:55:17,662 INFO L78 Accepts]: Start accepts. Automaton has 90981 states and 371730 transitions. Word has length 141 [2022-01-18 11:55:17,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:55:17,662 INFO L470 AbstractCegarLoop]: Abstraction has 90981 states and 371730 transitions. [2022-01-18 11:55:17,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:17,662 INFO L276 IsEmpty]: Start isEmpty. Operand 90981 states and 371730 transitions. [2022-01-18 11:55:17,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:55:17,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:55:17,883 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] [2022-01-18 11:55:17,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 11:55:17,883 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:55:17,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:55:17,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1656320669, now seen corresponding path program 38 times [2022-01-18 11:55:17,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:55:17,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946204842] [2022-01-18 11:55:17,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:55:17,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:55:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:55:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:55:17,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:55:17,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946204842] [2022-01-18 11:55:17,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946204842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:55:17,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:55:17,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:55:17,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81725786] [2022-01-18 11:55:17,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:55:17,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:55:17,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:55:17,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:55:17,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:55:17,966 INFO L87 Difference]: Start difference. First operand 90981 states and 371730 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:19,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:19,286 INFO L93 Difference]: Finished difference Result 134187 states and 547021 transitions. [2022-01-18 11:55:19,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:55:19,286 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:19,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:55:19,825 INFO L225 Difference]: With dead ends: 134187 [2022-01-18 11:55:19,825 INFO L226 Difference]: Without dead ends: 133539 [2022-01-18 11:55:19,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=79, Invalid=103, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:55:19,825 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 320 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:55:19,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 981 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:55:20,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133539 states. [2022-01-18 11:55:22,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133539 to 89433. [2022-01-18 11:55:22,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89433 states, 89432 states have (on average 4.072434922622775) internal successors, (364206), 89432 states have internal predecessors, (364206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89433 states to 89433 states and 364206 transitions. [2022-01-18 11:55:23,690 INFO L78 Accepts]: Start accepts. Automaton has 89433 states and 364206 transitions. Word has length 141 [2022-01-18 11:55:23,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:55:23,690 INFO L470 AbstractCegarLoop]: Abstraction has 89433 states and 364206 transitions. [2022-01-18 11:55:23,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 89433 states and 364206 transitions. [2022-01-18 11:55:23,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:55:23,925 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:55:23,925 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] [2022-01-18 11:55:23,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 11:55:23,926 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:55:23,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:55:23,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1753720307, now seen corresponding path program 39 times [2022-01-18 11:55:23,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:55:23,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508181639] [2022-01-18 11:55:23,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:55:23,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:55:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:55:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:55:24,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:55:24,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508181639] [2022-01-18 11:55:24,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508181639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:55:24,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:55:24,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:55:24,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244334747] [2022-01-18 11:55:24,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:55:24,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:55:24,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:55:24,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:55:24,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:55:24,023 INFO L87 Difference]: Start difference. First operand 89433 states and 364206 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:25,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:25,515 INFO L93 Difference]: Finished difference Result 133863 states and 544609 transitions. [2022-01-18 11:55:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:55:25,515 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:25,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:55:26,100 INFO L225 Difference]: With dead ends: 133863 [2022-01-18 11:55:26,100 INFO L226 Difference]: Without dead ends: 132243 [2022-01-18 11:55:26,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=161, Unknown=0, NotChecked=0, Total=272 [2022-01-18 11:55:26,100 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 430 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:55:26,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 1086 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:55:26,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132243 states. [2022-01-18 11:55:28,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132243 to 87246. [2022-01-18 11:55:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87246 states, 87245 states have (on average 4.058364376182016) internal successors, (354072), 87245 states have internal predecessors, (354072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87246 states to 87246 states and 354072 transitions. [2022-01-18 11:55:29,367 INFO L78 Accepts]: Start accepts. Automaton has 87246 states and 354072 transitions. Word has length 141 [2022-01-18 11:55:29,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:55:29,367 INFO L470 AbstractCegarLoop]: Abstraction has 87246 states and 354072 transitions. [2022-01-18 11:55:29,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:29,367 INFO L276 IsEmpty]: Start isEmpty. Operand 87246 states and 354072 transitions. [2022-01-18 11:55:29,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:55:29,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:55:29,587 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] [2022-01-18 11:55:29,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 11:55:29,587 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:55:29,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:55:29,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1954766859, now seen corresponding path program 40 times [2022-01-18 11:55:29,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:55:29,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925627910] [2022-01-18 11:55:29,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:55:29,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:55:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:55:29,698 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 11:55:29,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:55:29,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925627910] [2022-01-18 11:55:29,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925627910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:55:29,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:55:29,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 11:55:29,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734181180] [2022-01-18 11:55:29,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:55:29,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 11:55:29,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:55:29,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 11:55:29,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:55:29,699 INFO L87 Difference]: Start difference. First operand 87246 states and 354072 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:31,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:31,091 INFO L93 Difference]: Finished difference Result 125769 states and 512945 transitions. [2022-01-18 11:55:31,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:55:31,091 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:31,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:55:31,600 INFO L225 Difference]: With dead ends: 125769 [2022-01-18 11:55:31,600 INFO L226 Difference]: Without dead ends: 124029 [2022-01-18 11:55:31,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=209, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:55:31,601 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 397 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:55:31,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 1131 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:55:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124029 states. [2022-01-18 11:55:34,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124029 to 86238. [2022-01-18 11:55:34,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86238 states, 86237 states have (on average 4.060577246425548) internal successors, (350172), 86237 states have internal predecessors, (350172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:34,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86238 states to 86238 states and 350172 transitions. [2022-01-18 11:55:34,863 INFO L78 Accepts]: Start accepts. Automaton has 86238 states and 350172 transitions. Word has length 141 [2022-01-18 11:55:34,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:55:34,863 INFO L470 AbstractCegarLoop]: Abstraction has 86238 states and 350172 transitions. [2022-01-18 11:55:34,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:34,863 INFO L276 IsEmpty]: Start isEmpty. Operand 86238 states and 350172 transitions. [2022-01-18 11:55:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:55:35,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:55:35,073 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] [2022-01-18 11:55:35,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 11:55:35,073 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:55:35,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:55:35,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1363496953, now seen corresponding path program 41 times [2022-01-18 11:55:35,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:55:35,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641447398] [2022-01-18 11:55:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:55:35,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:55:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:55:35,164 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 11:55:35,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:55:35,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641447398] [2022-01-18 11:55:35,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641447398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:55:35,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:55:35,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 11:55:35,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565869374] [2022-01-18 11:55:35,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:55:35,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 11:55:35,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:55:35,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 11:55:35,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:55:35,166 INFO L87 Difference]: Start difference. First operand 86238 states and 350172 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:36,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:36,580 INFO L93 Difference]: Finished difference Result 123936 states and 506449 transitions. [2022-01-18 11:55:36,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:55:36,581 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:36,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:55:37,060 INFO L225 Difference]: With dead ends: 123936 [2022-01-18 11:55:37,060 INFO L226 Difference]: Without dead ends: 122268 [2022-01-18 11:55:37,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=208, Invalid=344, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:55:37,060 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 557 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:55:37,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [557 Valid, 1398 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:55:37,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122268 states. [2022-01-18 11:55:39,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122268 to 85101. [2022-01-18 11:55:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85101 states, 85100 states have (on average 4.07497062279671) internal successors, (346780), 85100 states have internal predecessors, (346780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:40,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85101 states to 85101 states and 346780 transitions. [2022-01-18 11:55:40,247 INFO L78 Accepts]: Start accepts. Automaton has 85101 states and 346780 transitions. Word has length 141 [2022-01-18 11:55:40,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:55:40,247 INFO L470 AbstractCegarLoop]: Abstraction has 85101 states and 346780 transitions. [2022-01-18 11:55:40,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:40,247 INFO L276 IsEmpty]: Start isEmpty. Operand 85101 states and 346780 transitions. [2022-01-18 11:55:41,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:55:41,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:55:41,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:55:41,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 11:55:41,029 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:55:41,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:55:41,030 INFO L85 PathProgramCache]: Analyzing trace with hash -915588769, now seen corresponding path program 42 times [2022-01-18 11:55:41,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:55:41,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45912131] [2022-01-18 11:55:41,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:55:41,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:55:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:55:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:55:41,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:55:41,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45912131] [2022-01-18 11:55:41,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45912131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:55:41,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:55:41,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:55:41,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557898889] [2022-01-18 11:55:41,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:55:41,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:55:41,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:55:41,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:55:41,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:55:41,191 INFO L87 Difference]: Start difference. First operand 85101 states and 346780 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:43,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:43,083 INFO L93 Difference]: Finished difference Result 164175 states and 652194 transitions. [2022-01-18 11:55:43,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:55:43,084 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:43,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:55:43,767 INFO L225 Difference]: With dead ends: 164175 [2022-01-18 11:55:43,767 INFO L226 Difference]: Without dead ends: 154923 [2022-01-18 11:55:43,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-01-18 11:55:43,767 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 323 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:55:43,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 1920 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:55:44,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154923 states. [2022-01-18 11:55:46,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154923 to 74805. [2022-01-18 11:55:46,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74805 states, 74804 states have (on average 4.000253997112454) internal successors, (299235), 74804 states have internal predecessors, (299235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:47,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74805 states to 74805 states and 299235 transitions. [2022-01-18 11:55:47,087 INFO L78 Accepts]: Start accepts. Automaton has 74805 states and 299235 transitions. Word has length 141 [2022-01-18 11:55:47,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:55:47,088 INFO L470 AbstractCegarLoop]: Abstraction has 74805 states and 299235 transitions. [2022-01-18 11:55:47,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:47,088 INFO L276 IsEmpty]: Start isEmpty. Operand 74805 states and 299235 transitions. [2022-01-18 11:55:47,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:55:47,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:55:47,266 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] [2022-01-18 11:55:47,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 11:55:47,266 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:55:47,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:55:47,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1933268651, now seen corresponding path program 43 times [2022-01-18 11:55:47,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:55:47,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268106592] [2022-01-18 11:55:47,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:55:47,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:55:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:55:47,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:55:47,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:55:47,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268106592] [2022-01-18 11:55:47,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268106592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:55:47,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:55:47,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:55:47,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810084282] [2022-01-18 11:55:47,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:55:47,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:55:47,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:55:47,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:55:47,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:55:47,378 INFO L87 Difference]: Start difference. First operand 74805 states and 299235 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:48,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:48,868 INFO L93 Difference]: Finished difference Result 154278 states and 618468 transitions. [2022-01-18 11:55:48,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 11:55:48,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:48,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:55:49,502 INFO L225 Difference]: With dead ends: 154278 [2022-01-18 11:55:49,503 INFO L226 Difference]: Without dead ends: 152838 [2022-01-18 11:55:49,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:55:49,503 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 340 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:55:49,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1216 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:55:49,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152838 states. [2022-01-18 11:55:52,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152838 to 73695. [2022-01-18 11:55:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73695 states, 73694 states have (on average 4.000637772410237) internal successors, (294823), 73694 states have internal predecessors, (294823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:53,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73695 states to 73695 states and 294823 transitions. [2022-01-18 11:55:53,027 INFO L78 Accepts]: Start accepts. Automaton has 73695 states and 294823 transitions. Word has length 141 [2022-01-18 11:55:53,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:55:53,027 INFO L470 AbstractCegarLoop]: Abstraction has 73695 states and 294823 transitions. [2022-01-18 11:55:53,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:53,028 INFO L276 IsEmpty]: Start isEmpty. Operand 73695 states and 294823 transitions. [2022-01-18 11:55:53,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:55:53,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:55:53,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:55:53,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 11:55:53,218 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:55:53,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:55:53,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1225072949, now seen corresponding path program 44 times [2022-01-18 11:55:53,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:55:53,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785777179] [2022-01-18 11:55:53,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:55:53,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:55:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:55:53,382 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 11:55:53,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:55:53,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785777179] [2022-01-18 11:55:53,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785777179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:55:53,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:55:53,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 11:55:53,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052539907] [2022-01-18 11:55:53,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:55:53,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 11:55:53,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:55:53,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 11:55:53,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:55:53,384 INFO L87 Difference]: Start difference. First operand 73695 states and 294823 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:55,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:55,003 INFO L93 Difference]: Finished difference Result 110979 states and 442196 transitions. [2022-01-18 11:55:55,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:55:55,004 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:55,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:55:55,444 INFO L225 Difference]: With dead ends: 110979 [2022-01-18 11:55:55,444 INFO L226 Difference]: Without dead ends: 107013 [2022-01-18 11:55:55,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=209, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:55:55,444 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 385 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:55:55,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [385 Valid, 1725 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:55:55,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107013 states. [2022-01-18 11:55:58,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107013 to 67134. [2022-01-18 11:55:58,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67134 states, 67133 states have (on average 3.9705212041767832) internal successors, (266553), 67133 states have internal predecessors, (266553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67134 states to 67134 states and 266553 transitions. [2022-01-18 11:55:58,367 INFO L78 Accepts]: Start accepts. Automaton has 67134 states and 266553 transitions. Word has length 141 [2022-01-18 11:55:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:55:58,368 INFO L470 AbstractCegarLoop]: Abstraction has 67134 states and 266553 transitions. [2022-01-18 11:55:58,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 67134 states and 266553 transitions. [2022-01-18 11:55:58,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:55:58,532 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:55:58,533 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] [2022-01-18 11:55:58,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 11:55:58,533 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:55:58,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:55:58,533 INFO L85 PathProgramCache]: Analyzing trace with hash 849162097, now seen corresponding path program 45 times [2022-01-18 11:55:58,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:55:58,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065558017] [2022-01-18 11:55:58,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:55:58,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:55:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:55:58,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:55:58,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:55:58,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065558017] [2022-01-18 11:55:58,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065558017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:55:58,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:55:58,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 11:55:58,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720879783] [2022-01-18 11:55:58,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:55:58,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 11:55:58,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:55:58,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 11:55:58,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:55:58,621 INFO L87 Difference]: Start difference. First operand 67134 states and 266553 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:55:59,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:55:59,967 INFO L93 Difference]: Finished difference Result 103284 states and 410477 transitions. [2022-01-18 11:55:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:55:59,968 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:55:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:00,382 INFO L225 Difference]: With dead ends: 103284 [2022-01-18 11:56:00,382 INFO L226 Difference]: Without dead ends: 101562 [2022-01-18 11:56:00,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=208, Invalid=344, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:56:00,383 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 415 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:00,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 1844 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:56:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101562 states. [2022-01-18 11:56:02,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101562 to 65706. [2022-01-18 11:56:02,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65706 states, 65705 states have (on average 3.9934708165284225) internal successors, (262391), 65705 states have internal predecessors, (262391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65706 states to 65706 states and 262391 transitions. [2022-01-18 11:56:02,693 INFO L78 Accepts]: Start accepts. Automaton has 65706 states and 262391 transitions. Word has length 141 [2022-01-18 11:56:02,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:02,693 INFO L470 AbstractCegarLoop]: Abstraction has 65706 states and 262391 transitions. [2022-01-18 11:56:02,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:02,693 INFO L276 IsEmpty]: Start isEmpty. Operand 65706 states and 262391 transitions. [2022-01-18 11:56:03,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:56:03,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:03,280 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] [2022-01-18 11:56:03,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 11:56:03,281 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:56:03,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1977983823, now seen corresponding path program 46 times [2022-01-18 11:56:03,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:03,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860890698] [2022-01-18 11:56:03,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:03,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:03,411 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 11:56:03,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:03,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860890698] [2022-01-18 11:56:03,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860890698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:03,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:03,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:56:03,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418729470] [2022-01-18 11:56:03,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:03,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:56:03,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:03,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:56:03,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:56:03,412 INFO L87 Difference]: Start difference. First operand 65706 states and 262391 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:04,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:04,108 INFO L93 Difference]: Finished difference Result 110886 states and 437459 transitions. [2022-01-18 11:56:04,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:56:04,108 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:56:04,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:04,521 INFO L225 Difference]: With dead ends: 110886 [2022-01-18 11:56:04,521 INFO L226 Difference]: Without dead ends: 105000 [2022-01-18 11:56:04,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:56:04,521 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 206 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:04,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 848 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:56:05,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105000 states. [2022-01-18 11:56:06,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105000 to 63924. [2022-01-18 11:56:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63924 states, 63923 states have (on average 3.993711183767971) internal successors, (255290), 63923 states have internal predecessors, (255290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63924 states to 63924 states and 255290 transitions. [2022-01-18 11:56:07,198 INFO L78 Accepts]: Start accepts. Automaton has 63924 states and 255290 transitions. Word has length 141 [2022-01-18 11:56:07,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:07,198 INFO L470 AbstractCegarLoop]: Abstraction has 63924 states and 255290 transitions. [2022-01-18 11:56:07,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:07,198 INFO L276 IsEmpty]: Start isEmpty. Operand 63924 states and 255290 transitions. [2022-01-18 11:56:07,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:56:07,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:07,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:07,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 11:56:07,350 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:56:07,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:07,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1200499983, now seen corresponding path program 47 times [2022-01-18 11:56:07,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:07,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738525625] [2022-01-18 11:56:07,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:07,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:07,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:07,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:07,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738525625] [2022-01-18 11:56:07,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738525625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:07,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:07,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 11:56:07,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503975099] [2022-01-18 11:56:07,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:07,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:56:07,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:07,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:56:07,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:56:07,421 INFO L87 Difference]: Start difference. First operand 63924 states and 255290 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:08,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:08,256 INFO L93 Difference]: Finished difference Result 57117 states and 222791 transitions. [2022-01-18 11:56:08,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:56:08,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:56:08,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:08,462 INFO L225 Difference]: With dead ends: 57117 [2022-01-18 11:56:08,462 INFO L226 Difference]: Without dead ends: 49791 [2022-01-18 11:56:08,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:56:08,462 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 317 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:08,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 904 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:56:08,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49791 states. [2022-01-18 11:56:09,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49791 to 27399. [2022-01-18 11:56:09,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27399 states, 27398 states have (on average 3.9837944375501864) internal successors, (109148), 27398 states have internal predecessors, (109148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27399 states to 27399 states and 109148 transitions. [2022-01-18 11:56:09,285 INFO L78 Accepts]: Start accepts. Automaton has 27399 states and 109148 transitions. Word has length 141 [2022-01-18 11:56:09,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:09,285 INFO L470 AbstractCegarLoop]: Abstraction has 27399 states and 109148 transitions. [2022-01-18 11:56:09,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:09,285 INFO L276 IsEmpty]: Start isEmpty. Operand 27399 states and 109148 transitions. [2022-01-18 11:56:09,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:56:09,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:09,342 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] [2022-01-18 11:56:09,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 11:56:09,342 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:56:09,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:09,343 INFO L85 PathProgramCache]: Analyzing trace with hash -778304529, now seen corresponding path program 48 times [2022-01-18 11:56:09,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:09,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550893682] [2022-01-18 11:56:09,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:09,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:09,404 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 11:56:09,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:09,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550893682] [2022-01-18 11:56:09,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550893682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:09,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:09,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 11:56:09,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661479621] [2022-01-18 11:56:09,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:09,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:56:09,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:09,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:56:09,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:56:09,405 INFO L87 Difference]: Start difference. First operand 27399 states and 109148 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:10,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:10,143 INFO L93 Difference]: Finished difference Result 59721 states and 240185 transitions. [2022-01-18 11:56:10,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:56:10,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:56:10,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:10,361 INFO L225 Difference]: With dead ends: 59721 [2022-01-18 11:56:10,361 INFO L226 Difference]: Without dead ends: 57021 [2022-01-18 11:56:10,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:56:10,361 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 368 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:10,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 779 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:56:10,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57021 states. [2022-01-18 11:56:11,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57021 to 26481. [2022-01-18 11:56:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26481 states, 26480 states have (on average 3.975415407854985) internal successors, (105269), 26480 states have internal predecessors, (105269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:11,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26481 states to 26481 states and 105269 transitions. [2022-01-18 11:56:11,635 INFO L78 Accepts]: Start accepts. Automaton has 26481 states and 105269 transitions. Word has length 141 [2022-01-18 11:56:11,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:11,635 INFO L470 AbstractCegarLoop]: Abstraction has 26481 states and 105269 transitions. [2022-01-18 11:56:11,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:11,635 INFO L276 IsEmpty]: Start isEmpty. Operand 26481 states and 105269 transitions. [2022-01-18 11:56:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:56:11,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:11,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:11,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 11:56:11,696 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:56:11,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1109747645, now seen corresponding path program 49 times [2022-01-18 11:56:11,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:11,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46188001] [2022-01-18 11:56:11,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:11,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:11,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:11,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46188001] [2022-01-18 11:56:11,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46188001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:11,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:11,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:56:11,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737269436] [2022-01-18 11:56:11,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:11,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:56:11,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:11,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:56:11,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:56:11,783 INFO L87 Difference]: Start difference. First operand 26481 states and 105269 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:12,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:12,154 INFO L93 Difference]: Finished difference Result 37884 states and 147929 transitions. [2022-01-18 11:56:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 11:56:12,154 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:56:12,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:12,262 INFO L225 Difference]: With dead ends: 37884 [2022-01-18 11:56:12,262 INFO L226 Difference]: Without dead ends: 33834 [2022-01-18 11:56:12,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:56:12,262 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 317 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:12,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 975 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:56:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33834 states. [2022-01-18 11:56:12,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33834 to 25077. [2022-01-18 11:56:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25077 states, 25076 states have (on average 3.998923273249322) internal successors, (100277), 25076 states have internal predecessors, (100277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:13,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25077 states to 25077 states and 100277 transitions. [2022-01-18 11:56:13,220 INFO L78 Accepts]: Start accepts. Automaton has 25077 states and 100277 transitions. Word has length 141 [2022-01-18 11:56:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:13,220 INFO L470 AbstractCegarLoop]: Abstraction has 25077 states and 100277 transitions. [2022-01-18 11:56:13,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:13,221 INFO L276 IsEmpty]: Start isEmpty. Operand 25077 states and 100277 transitions. [2022-01-18 11:56:13,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:56:13,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:13,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:13,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 11:56:13,282 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:56:13,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:13,282 INFO L85 PathProgramCache]: Analyzing trace with hash 2042520669, now seen corresponding path program 50 times [2022-01-18 11:56:13,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:13,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320489483] [2022-01-18 11:56:13,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:13,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:13,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:13,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320489483] [2022-01-18 11:56:13,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320489483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:13,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:13,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:56:13,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308450330] [2022-01-18 11:56:13,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:13,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:56:13,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:13,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:56:13,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:56:13,365 INFO L87 Difference]: Start difference. First operand 25077 states and 100277 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:13,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:13,616 INFO L93 Difference]: Finished difference Result 12195 states and 42731 transitions. [2022-01-18 11:56:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:56:13,616 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:56:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:13,639 INFO L225 Difference]: With dead ends: 12195 [2022-01-18 11:56:13,639 INFO L226 Difference]: Without dead ends: 7623 [2022-01-18 11:56:13,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=168, Unknown=0, NotChecked=0, Total=272 [2022-01-18 11:56:13,640 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 296 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:13,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 997 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:56:13,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7623 states. [2022-01-18 11:56:13,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7623 to 5166. [2022-01-18 11:56:13,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 3.7932236205227494) internal successors, (19592), 5165 states have internal predecessors, (19592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:13,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 19592 transitions. [2022-01-18 11:56:13,761 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 19592 transitions. Word has length 141 [2022-01-18 11:56:13,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:13,761 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 19592 transitions. [2022-01-18 11:56:13,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 19592 transitions. [2022-01-18 11:56:13,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:56:13,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:13,770 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] [2022-01-18 11:56:13,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 11:56:13,770 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:56:13,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:13,771 INFO L85 PathProgramCache]: Analyzing trace with hash 163761375, now seen corresponding path program 51 times [2022-01-18 11:56:13,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:13,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385232119] [2022-01-18 11:56:13,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:13,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:13,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:13,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385232119] [2022-01-18 11:56:13,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385232119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:13,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:13,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:56:13,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13674914] [2022-01-18 11:56:13,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:13,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:56:13,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:13,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:56:13,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:56:13,844 INFO L87 Difference]: Start difference. First operand 5166 states and 19592 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:14,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:14,001 INFO L93 Difference]: Finished difference Result 9612 states and 36698 transitions. [2022-01-18 11:56:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:56:14,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:56:14,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:14,024 INFO L225 Difference]: With dead ends: 9612 [2022-01-18 11:56:14,024 INFO L226 Difference]: Without dead ends: 8964 [2022-01-18 11:56:14,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=79, Invalid=103, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:56:14,025 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 375 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:14,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 705 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:56:14,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8964 states. [2022-01-18 11:56:14,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8964 to 4842. [2022-01-18 11:56:14,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4842 states, 4841 states have (on average 3.7291881842594505) internal successors, (18053), 4841 states have internal predecessors, (18053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:14,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 18053 transitions. [2022-01-18 11:56:14,134 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 18053 transitions. Word has length 141 [2022-01-18 11:56:14,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:14,135 INFO L470 AbstractCegarLoop]: Abstraction has 4842 states and 18053 transitions. [2022-01-18 11:56:14,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:14,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 18053 transitions. [2022-01-18 11:56:14,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:56:14,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:14,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:14,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 11:56:14,143 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:56:14,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:14,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2051813549, now seen corresponding path program 52 times [2022-01-18 11:56:14,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:14,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172382064] [2022-01-18 11:56:14,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:14,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:14,256 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 11:56:14,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:14,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172382064] [2022-01-18 11:56:14,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172382064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:14,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:14,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:56:14,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649288515] [2022-01-18 11:56:14,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:14,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:56:14,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:14,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:56:14,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:56:14,257 INFO L87 Difference]: Start difference. First operand 4842 states and 18053 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:14,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:14,471 INFO L93 Difference]: Finished difference Result 7947 states and 29969 transitions. [2022-01-18 11:56:14,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:56:14,471 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:56:14,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:14,488 INFO L225 Difference]: With dead ends: 7947 [2022-01-18 11:56:14,488 INFO L226 Difference]: Without dead ends: 6975 [2022-01-18 11:56:14,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-01-18 11:56:14,489 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 222 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:14,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 946 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:56:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6975 states. [2022-01-18 11:56:14,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6975 to 4518. [2022-01-18 11:56:14,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 4517 states have (on average 3.7117555899933583) internal successors, (16766), 4517 states have internal predecessors, (16766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 16766 transitions. [2022-01-18 11:56:14,579 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 16766 transitions. Word has length 141 [2022-01-18 11:56:14,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:14,580 INFO L470 AbstractCegarLoop]: Abstraction has 4518 states and 16766 transitions. [2022-01-18 11:56:14,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 16766 transitions. [2022-01-18 11:56:14,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:56:14,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:14,587 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] [2022-01-18 11:56:14,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 11:56:14,587 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:56:14,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:14,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1310380723, now seen corresponding path program 53 times [2022-01-18 11:56:14,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:14,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89136397] [2022-01-18 11:56:14,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:14,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:14,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:14,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89136397] [2022-01-18 11:56:14,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89136397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:14,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:14,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 11:56:14,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983212776] [2022-01-18 11:56:14,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:14,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 11:56:14,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:14,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 11:56:14,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:56:14,669 INFO L87 Difference]: Start difference. First operand 4518 states and 16766 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:14,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:14,839 INFO L93 Difference]: Finished difference Result 5382 states and 19394 transitions. [2022-01-18 11:56:14,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:56:14,840 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:56:14,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:14,850 INFO L225 Difference]: With dead ends: 5382 [2022-01-18 11:56:14,850 INFO L226 Difference]: Without dead ends: 4302 [2022-01-18 11:56:14,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2022-01-18 11:56:14,851 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 252 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:14,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 967 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:56:14,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4302 states. [2022-01-18 11:56:15,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4302 to 4302. [2022-01-18 11:56:15,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4302 states, 4301 states have (on average 3.7377354103696816) internal successors, (16076), 4301 states have internal predecessors, (16076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:15,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4302 states to 4302 states and 16076 transitions. [2022-01-18 11:56:15,079 INFO L78 Accepts]: Start accepts. Automaton has 4302 states and 16076 transitions. Word has length 141 [2022-01-18 11:56:15,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:15,079 INFO L470 AbstractCegarLoop]: Abstraction has 4302 states and 16076 transitions. [2022-01-18 11:56:15,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:15,079 INFO L276 IsEmpty]: Start isEmpty. Operand 4302 states and 16076 transitions. [2022-01-18 11:56:15,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 11:56:15,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:15,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:15,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 11:56:15,087 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-18 11:56:15,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:15,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1375842749, now seen corresponding path program 54 times [2022-01-18 11:56:15,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:15,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152270994] [2022-01-18 11:56:15,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:15,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:15,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:15,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:15,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152270994] [2022-01-18 11:56:15,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152270994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:15,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:15,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 11:56:15,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305285012] [2022-01-18 11:56:15,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:15,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 11:56:15,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:15,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 11:56:15,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:56:15,185 INFO L87 Difference]: Start difference. First operand 4302 states and 16076 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:15,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:15,305 INFO L93 Difference]: Finished difference Result 1368 states and 3704 transitions. [2022-01-18 11:56:15,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:56:15,305 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 11:56:15,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:15,319 INFO L225 Difference]: With dead ends: 1368 [2022-01-18 11:56:15,319 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 11:56:15,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=198, Unknown=0, NotChecked=0, Total=306 [2022-01-18 11:56:15,320 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 207 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:15,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 803 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:56:15,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 11:56:15,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 11:56:15,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 11:56:15,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 141 [2022-01-18 11:56:15,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:15,320 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 11:56:15,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:56:15,321 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 11:56:15,321 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 11:56:15,336 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-18 11:56:15,336 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 6 remaining) [2022-01-18 11:56:15,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 6 remaining) [2022-01-18 11:56:15,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 6 remaining) [2022-01-18 11:56:15,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 6 remaining) [2022-01-18 11:56:15,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (0 of 6 remaining) [2022-01-18 11:56:15,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 11:56:15,342 INFO L732 BasicCegarLoop]: Path program histogram: [54] [2022-01-18 11:56:15,344 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 11:56:15,344 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 11:56:15,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:56:15 BasicIcfg [2022-01-18 11:56:15,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 11:56:15,345 INFO L158 Benchmark]: Toolchain (without parser) took 506150.22ms. Allocated memory was 408.9MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 353.2MB in the beginning and 11.6GB in the end (delta: -11.2GB). Peak memory consumption was 4.4GB. Max. memory is 16.0GB. [2022-01-18 11:56:15,346 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 408.9MB. Free memory is still 370.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:56:15,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.92ms. Allocated memory was 408.9MB in the beginning and 625.0MB in the end (delta: 216.0MB). Free memory was 353.1MB in the beginning and 594.4MB in the end (delta: -241.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.0GB. [2022-01-18 11:56:15,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.62ms. Allocated memory is still 625.0MB. Free memory was 594.4MB in the beginning and 592.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:56:15,346 INFO L158 Benchmark]: Boogie Preprocessor took 15.43ms. Allocated memory is still 625.0MB. Free memory was 592.0MB in the beginning and 590.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:56:15,346 INFO L158 Benchmark]: RCFGBuilder took 413.03ms. Allocated memory is still 625.0MB. Free memory was 590.7MB in the beginning and 568.9MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-18 11:56:15,346 INFO L158 Benchmark]: TraceAbstraction took 505472.54ms. Allocated memory was 625.0MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 568.4MB in the beginning and 11.6GB in the end (delta: -11.0GB). Peak memory consumption was 4.4GB. Max. memory is 16.0GB. [2022-01-18 11:56:15,347 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 408.9MB. Free memory is still 370.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 217.92ms. Allocated memory was 408.9MB in the beginning and 625.0MB in the end (delta: 216.0MB). Free memory was 353.1MB in the beginning and 594.4MB in the end (delta: -241.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 27.62ms. Allocated memory is still 625.0MB. Free memory was 594.4MB in the beginning and 592.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.43ms. Allocated memory is still 625.0MB. Free memory was 592.0MB in the beginning and 590.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 413.03ms. Allocated memory is still 625.0MB. Free memory was 590.7MB in the beginning and 568.9MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 505472.54ms. Allocated memory was 625.0MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 568.4MB in the beginning and 11.6GB in the end (delta: -11.0GB). Peak memory consumption was 4.4GB. 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 - PositiveResult [Line: 168]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 205 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 505.4s, OverallIterations: 54, TraceHistogramMax: 1, PathProgramHistogramMax: 54, EmptinessCheckTime: 29.7s, AutomataDifference: 179.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18838 SdHoareTripleChecker+Valid, 11.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18838 mSDsluCounter, 55855 SdHoareTripleChecker+Invalid, 8.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47723 mSDsCounter, 2852 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22272 IncrementalHoareTripleChecker+Invalid, 25124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2852 mSolverCounterUnsat, 12992 mSDtfsCounter, 22272 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 836 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 680 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1153 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227658occurred in iteration=13, InterpolantAutomatonStates: 625, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 286.0s AutomataMinimizationTime, 54 MinimizatonAttempts, 3819419 StatesRemovedByMinimization, 50 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 7614 NumberOfCodeBlocks, 7614 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 7560 ConstructedInterpolants, 0 QuantifiedInterpolants, 20356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 54 InterpolantComputations, 54 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 11:56:15,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...