/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 11:17:44,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 11:17:44,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 11:17:44,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 11:17:44,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 11:17:44,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 11:17:44,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 11:17:44,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 11:17:44,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 11:17:44,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 11:17:44,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 11:17:44,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 11:17:44,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 11:17:44,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 11:17:44,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 11:17:44,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 11:17:44,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 11:17:44,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 11:17:44,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 11:17:44,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 11:17:44,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 11:17:44,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 11:17:44,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 11:17:44,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 11:17:44,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 11:17:44,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 11:17:44,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 11:17:44,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 11:17:44,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 11:17:44,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 11:17:44,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 11:17:44,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 11:17:44,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 11:17:44,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 11:17:44,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 11:17:44,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 11:17:44,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 11:17:44,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 11:17:44,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 11:17:44,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 11:17:44,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 11:17:44,784 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 11:17:44,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 11:17:44,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 11:17:44,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 11:17:44,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 11:17:44,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 11:17:44,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 11:17:44,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 11:17:44,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 11:17:44,803 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 11:17:44,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 11:17:44,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 11:17:44,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 11:17:44,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 11:17:44,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 11:17:44,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 11:17:44,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:17:44,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 11:17:44,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 11:17:44,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 11:17:44,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 11:17:44,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 11:17:44,805 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 11:17:44,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 11:17:44,806 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 11:17:44,806 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 11:17:44,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 11:17:44,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 11:17:44,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 11:17:44,982 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 11:17:44,983 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 11:17:44,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2022-01-18 11:17:45,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d8619fd/2b08217249e140368736aa2c48059b9d/FLAG62d955a69 [2022-01-18 11:17:45,366 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 11:17:45,366 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2022-01-18 11:17:45,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d8619fd/2b08217249e140368736aa2c48059b9d/FLAG62d955a69 [2022-01-18 11:17:45,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d8619fd/2b08217249e140368736aa2c48059b9d [2022-01-18 11:17:45,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 11:17:45,380 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 11:17:45,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 11:17:45,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 11:17:45,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 11:17:45,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710e952a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45, skipping insertion in model container [2022-01-18 11:17:45,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 11:17:45,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 11:17:45,535 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c[2303,2316] [2022-01-18 11:17:45,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:17:45,548 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 11:17:45,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c[2303,2316] [2022-01-18 11:17:45,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:17:45,573 INFO L208 MainTranslator]: Completed translation [2022-01-18 11:17:45,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45 WrapperNode [2022-01-18 11:17:45,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 11:17:45,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 11:17:45,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 11:17:45,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 11:17:45,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,615 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 130 [2022-01-18 11:17:45,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 11:17:45,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 11:17:45,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 11:17:45,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 11:17:45,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 11:17:45,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 11:17:45,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 11:17:45,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 11:17:45,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (1/1) ... [2022-01-18 11:17:45,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:17:45,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:17:45,656 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 11:17:45,661 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 11:17:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 11:17:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 11:17:45,682 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 11:17:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 11:17:45,682 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 11:17:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 11:17:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 11:17:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 11:17:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 11:17:45,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 11:17:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 11:17:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 11:17:45,684 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 11:17:45,737 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 11:17:45,738 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 11:17:45,902 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 11:17:45,909 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 11:17:45,909 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 11:17:45,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:17:45 BoogieIcfgContainer [2022-01-18 11:17:45,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 11:17:45,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 11:17:45,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 11:17:45,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 11:17:45,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:17:45" (1/3) ... [2022-01-18 11:17:45,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340da86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:17:45, skipping insertion in model container [2022-01-18 11:17:45,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:17:45" (2/3) ... [2022-01-18 11:17:45,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340da86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:17:45, skipping insertion in model container [2022-01-18 11:17:45,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:17:45" (3/3) ... [2022-01-18 11:17:45,922 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2022-01-18 11:17:45,925 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 11:17:45,925 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 11:17:45,925 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 11:17:45,925 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 11:17:45,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,985 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,985 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,989 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,989 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,989 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,989 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,989 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,989 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,989 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,989 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,989 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,994 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,994 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,994 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,994 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,994 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,994 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:45,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,002 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:17:46,006 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 11:17:46,033 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 11:17:46,037 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 11:17:46,037 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 11:17:46,048 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 170 places, 176 transitions, 368 flow [2022-01-18 11:17:46,241 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7153 states, 7152 states have (on average 2.8859060402684564) internal successors, (20640), 7152 states have internal predecessors, (20640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:46,263 INFO L276 IsEmpty]: Start isEmpty. Operand has 7153 states, 7152 states have (on average 2.8859060402684564) internal successors, (20640), 7152 states have internal predecessors, (20640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:46,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:46,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:46,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:46,311 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:46,317 INFO L85 PathProgramCache]: Analyzing trace with hash 4484043, now seen corresponding path program 1 times [2022-01-18 11:17:46,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:46,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799174555] [2022-01-18 11:17:46,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:46,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:46,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:46,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:46,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799174555] [2022-01-18 11:17:46,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799174555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:46,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:46,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:46,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208406411] [2022-01-18 11:17:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:46,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:46,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:46,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:46,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:46,743 INFO L87 Difference]: Start difference. First operand has 7153 states, 7152 states have (on average 2.8859060402684564) internal successors, (20640), 7152 states have internal predecessors, (20640), 0 states have call successors, (0), 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 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:47,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:47,049 INFO L93 Difference]: Finished difference Result 8205 states and 22746 transitions. [2022-01-18 11:17:47,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:17:47,051 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:47,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:47,106 INFO L225 Difference]: With dead ends: 8205 [2022-01-18 11:17:47,106 INFO L226 Difference]: Without dead ends: 7243 [2022-01-18 11:17:47,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:17:47,113 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 128 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:47,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1806 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:47,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7243 states. [2022-01-18 11:17:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7243 to 6522. [2022-01-18 11:17:47,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 6521 states have (on average 2.7931298880539797) internal successors, (18214), 6521 states have internal predecessors, (18214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:47,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 18214 transitions. [2022-01-18 11:17:47,364 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 18214 transitions. Word has length 91 [2022-01-18 11:17:47,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:47,365 INFO L470 AbstractCegarLoop]: Abstraction has 6522 states and 18214 transitions. [2022-01-18 11:17:47,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 18214 transitions. [2022-01-18 11:17:47,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:47,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:47,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:47,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 11:17:47,384 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:47,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:47,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2130602867, now seen corresponding path program 2 times [2022-01-18 11:17:47,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:47,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99696969] [2022-01-18 11:17:47,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:47,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:47,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:47,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:47,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99696969] [2022-01-18 11:17:47,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99696969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:47,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:47,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:47,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48994866] [2022-01-18 11:17:47,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:47,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:47,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:47,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:47,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:47,520 INFO L87 Difference]: Start difference. First operand 6522 states and 18214 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:47,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:47,724 INFO L93 Difference]: Finished difference Result 7479 states and 20746 transitions. [2022-01-18 11:17:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:17:47,725 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:47,751 INFO L225 Difference]: With dead ends: 7479 [2022-01-18 11:17:47,752 INFO L226 Difference]: Without dead ends: 7212 [2022-01-18 11:17:47,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:17:47,755 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 110 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:47,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 1600 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:47,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7212 states. [2022-01-18 11:17:47,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 6518. [2022-01-18 11:17:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6518 states, 6517 states have (on average 2.793156360288476) internal successors, (18203), 6517 states have internal predecessors, (18203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:47,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6518 states to 6518 states and 18203 transitions. [2022-01-18 11:17:47,950 INFO L78 Accepts]: Start accepts. Automaton has 6518 states and 18203 transitions. Word has length 91 [2022-01-18 11:17:47,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:47,952 INFO L470 AbstractCegarLoop]: Abstraction has 6518 states and 18203 transitions. [2022-01-18 11:17:47,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:47,952 INFO L276 IsEmpty]: Start isEmpty. Operand 6518 states and 18203 transitions. [2022-01-18 11:17:47,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:47,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:47,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:47,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 11:17:47,967 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:47,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:47,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1383610329, now seen corresponding path program 3 times [2022-01-18 11:17:47,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:47,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729468344] [2022-01-18 11:17:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:47,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:48,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:48,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729468344] [2022-01-18 11:17:48,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729468344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:48,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:48,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:48,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125777860] [2022-01-18 11:17:48,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:48,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:48,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:48,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:48,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:48,125 INFO L87 Difference]: Start difference. First operand 6518 states and 18203 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:48,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:48,359 INFO L93 Difference]: Finished difference Result 7547 states and 20917 transitions. [2022-01-18 11:17:48,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:17:48,359 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:48,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:48,395 INFO L225 Difference]: With dead ends: 7547 [2022-01-18 11:17:48,395 INFO L226 Difference]: Without dead ends: 7252 [2022-01-18 11:17:48,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:17:48,401 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 145 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:48,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 1730 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:48,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7252 states. [2022-01-18 11:17:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7252 to 6514. [2022-01-18 11:17:48,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6514 states, 6513 states have (on average 2.7931828650391526) internal successors, (18192), 6513 states have internal predecessors, (18192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:48,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6514 states to 6514 states and 18192 transitions. [2022-01-18 11:17:48,523 INFO L78 Accepts]: Start accepts. Automaton has 6514 states and 18192 transitions. Word has length 91 [2022-01-18 11:17:48,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:48,524 INFO L470 AbstractCegarLoop]: Abstraction has 6514 states and 18192 transitions. [2022-01-18 11:17:48,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:48,524 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states and 18192 transitions. [2022-01-18 11:17:48,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:48,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:48,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:48,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 11:17:48,535 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:48,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash -530590919, now seen corresponding path program 4 times [2022-01-18 11:17:48,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:48,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248953650] [2022-01-18 11:17:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:48,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:48,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:48,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248953650] [2022-01-18 11:17:48,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248953650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:48,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:48,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:48,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689811610] [2022-01-18 11:17:48,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:48,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:48,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:48,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:48,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:48,622 INFO L87 Difference]: Start difference. First operand 6514 states and 18192 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:48,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:48,836 INFO L93 Difference]: Finished difference Result 7598 states and 21046 transitions. [2022-01-18 11:17:48,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:17:48,837 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:48,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:48,852 INFO L225 Difference]: With dead ends: 7598 [2022-01-18 11:17:48,853 INFO L226 Difference]: Without dead ends: 7301 [2022-01-18 11:17:48,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:17:48,854 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 161 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:48,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 1794 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:48,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2022-01-18 11:17:48,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 6518. [2022-01-18 11:17:48,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6518 states, 6517 states have (on average 2.7925425809421514) internal successors, (18199), 6517 states have internal predecessors, (18199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:48,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6518 states to 6518 states and 18199 transitions. [2022-01-18 11:17:48,972 INFO L78 Accepts]: Start accepts. Automaton has 6518 states and 18199 transitions. Word has length 91 [2022-01-18 11:17:48,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:48,972 INFO L470 AbstractCegarLoop]: Abstraction has 6518 states and 18199 transitions. [2022-01-18 11:17:48,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:48,972 INFO L276 IsEmpty]: Start isEmpty. Operand 6518 states and 18199 transitions. [2022-01-18 11:17:48,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:48,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:48,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:48,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 11:17:48,983 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:48,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:48,984 INFO L85 PathProgramCache]: Analyzing trace with hash 86805253, now seen corresponding path program 5 times [2022-01-18 11:17:48,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:48,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431070377] [2022-01-18 11:17:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:48,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:49,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:49,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:49,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431070377] [2022-01-18 11:17:49,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431070377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:49,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:49,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:49,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083733269] [2022-01-18 11:17:49,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:49,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:49,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:49,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:49,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:49,070 INFO L87 Difference]: Start difference. First operand 6518 states and 18199 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:49,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:49,238 INFO L93 Difference]: Finished difference Result 7509 states and 20816 transitions. [2022-01-18 11:17:49,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:17:49,239 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:49,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:49,257 INFO L225 Difference]: With dead ends: 7509 [2022-01-18 11:17:49,257 INFO L226 Difference]: Without dead ends: 7243 [2022-01-18 11:17:49,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:17:49,258 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 123 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:49,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1755 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7243 states. [2022-01-18 11:17:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7243 to 6522. [2022-01-18 11:17:49,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 6521 states have (on average 2.7919030823493327) internal successors, (18206), 6521 states have internal predecessors, (18206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 18206 transitions. [2022-01-18 11:17:49,407 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 18206 transitions. Word has length 91 [2022-01-18 11:17:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:49,407 INFO L470 AbstractCegarLoop]: Abstraction has 6522 states and 18206 transitions. [2022-01-18 11:17:49,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:49,407 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 18206 transitions. [2022-01-18 11:17:49,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:49,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:49,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:49,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 11:17:49,418 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:49,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:49,419 INFO L85 PathProgramCache]: Analyzing trace with hash -2082043219, now seen corresponding path program 6 times [2022-01-18 11:17:49,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:49,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823568621] [2022-01-18 11:17:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:49,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:49,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:49,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:49,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823568621] [2022-01-18 11:17:49,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823568621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:49,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:49,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:49,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020198307] [2022-01-18 11:17:49,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:49,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:49,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:49,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:49,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:49,495 INFO L87 Difference]: Start difference. First operand 6522 states and 18206 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:49,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:49,672 INFO L93 Difference]: Finished difference Result 7463 states and 20694 transitions. [2022-01-18 11:17:49,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:17:49,672 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:49,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:49,688 INFO L225 Difference]: With dead ends: 7463 [2022-01-18 11:17:49,688 INFO L226 Difference]: Without dead ends: 7188 [2022-01-18 11:17:49,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:17:49,689 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 106 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:49,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 1874 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:49,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7188 states. [2022-01-18 11:17:49,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7188 to 6510. [2022-01-18 11:17:49,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6510 states, 6509 states have (on average 2.793209402365955) internal successors, (18181), 6509 states have internal predecessors, (18181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:49,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6510 states to 6510 states and 18181 transitions. [2022-01-18 11:17:49,833 INFO L78 Accepts]: Start accepts. Automaton has 6510 states and 18181 transitions. Word has length 91 [2022-01-18 11:17:49,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:49,833 INFO L470 AbstractCegarLoop]: Abstraction has 6510 states and 18181 transitions. [2022-01-18 11:17:49,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 6510 states and 18181 transitions. [2022-01-18 11:17:49,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:49,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:49,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:49,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 11:17:49,844 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:49,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:49,845 INFO L85 PathProgramCache]: Analyzing trace with hash 2000597709, now seen corresponding path program 7 times [2022-01-18 11:17:49,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:49,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114784181] [2022-01-18 11:17:49,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:49,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:49,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:49,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:49,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114784181] [2022-01-18 11:17:49,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114784181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:49,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:49,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:49,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950461905] [2022-01-18 11:17:49,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:49,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:49,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:49,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:49,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:49,925 INFO L87 Difference]: Start difference. First operand 6510 states and 18181 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:50,140 INFO L93 Difference]: Finished difference Result 9609 states and 26304 transitions. [2022-01-18 11:17:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:17:50,140 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:50,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:50,158 INFO L225 Difference]: With dead ends: 9609 [2022-01-18 11:17:50,158 INFO L226 Difference]: Without dead ends: 9161 [2022-01-18 11:17:50,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:17:50,159 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 510 mSDsluCounter, 1891 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:50,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 2192 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:50,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9161 states. [2022-01-18 11:17:50,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9161 to 6692. [2022-01-18 11:17:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 6691 states have (on average 2.7921088028695262) internal successors, (18682), 6691 states have internal predecessors, (18682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 18682 transitions. [2022-01-18 11:17:50,305 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 18682 transitions. Word has length 91 [2022-01-18 11:17:50,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:50,305 INFO L470 AbstractCegarLoop]: Abstraction has 6692 states and 18682 transitions. [2022-01-18 11:17:50,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,305 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 18682 transitions. [2022-01-18 11:17:50,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:50,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:50,316 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] [2022-01-18 11:17:50,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 11:17:50,316 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:50,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:50,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1572183189, now seen corresponding path program 1 times [2022-01-18 11:17:50,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:50,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228112769] [2022-01-18 11:17:50,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:50,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:50,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:50,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:50,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228112769] [2022-01-18 11:17:50,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228112769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:50,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:50,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:17:50,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169247613] [2022-01-18 11:17:50,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:50,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:17:50,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:50,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:17:50,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:17:50,341 INFO L87 Difference]: Start difference. First operand 6692 states and 18682 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:50,375 INFO L93 Difference]: Finished difference Result 9132 states and 24899 transitions. [2022-01-18 11:17:50,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:17:50,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:50,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:50,391 INFO L225 Difference]: With dead ends: 9132 [2022-01-18 11:17:50,391 INFO L226 Difference]: Without dead ends: 9089 [2022-01-18 11:17:50,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:17:50,392 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 112 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:50,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 328 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:17:50,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9089 states. [2022-01-18 11:17:50,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9089 to 6838. [2022-01-18 11:17:50,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6838 states, 6837 states have (on average 2.7703671200819073) internal successors, (18941), 6837 states have internal predecessors, (18941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6838 states to 6838 states and 18941 transitions. [2022-01-18 11:17:50,515 INFO L78 Accepts]: Start accepts. Automaton has 6838 states and 18941 transitions. Word has length 91 [2022-01-18 11:17:50,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:50,515 INFO L470 AbstractCegarLoop]: Abstraction has 6838 states and 18941 transitions. [2022-01-18 11:17:50,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,515 INFO L276 IsEmpty]: Start isEmpty. Operand 6838 states and 18941 transitions. [2022-01-18 11:17:50,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:50,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:50,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:50,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 11:17:50,527 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:50,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:50,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1923734219, now seen corresponding path program 1 times [2022-01-18 11:17:50,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:50,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031620155] [2022-01-18 11:17:50,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:50,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:50,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:50,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:50,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031620155] [2022-01-18 11:17:50,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031620155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:50,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:50,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:17:50,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804463395] [2022-01-18 11:17:50,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:50,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:17:50,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:50,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:17:50,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:17:50,550 INFO L87 Difference]: Start difference. First operand 6838 states and 18941 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:50,588 INFO L93 Difference]: Finished difference Result 9309 states and 25233 transitions. [2022-01-18 11:17:50,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:17:50,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:50,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:50,605 INFO L225 Difference]: With dead ends: 9309 [2022-01-18 11:17:50,605 INFO L226 Difference]: Without dead ends: 9122 [2022-01-18 11:17:50,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:17:50,607 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 118 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:50,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 324 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:17:50,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9122 states. [2022-01-18 11:17:50,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9122 to 6836. [2022-01-18 11:17:50,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6836 states, 6835 states have (on average 2.7678127286027796) internal successors, (18918), 6835 states have internal predecessors, (18918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6836 states to 6836 states and 18918 transitions. [2022-01-18 11:17:50,740 INFO L78 Accepts]: Start accepts. Automaton has 6836 states and 18918 transitions. Word has length 91 [2022-01-18 11:17:50,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:50,740 INFO L470 AbstractCegarLoop]: Abstraction has 6836 states and 18918 transitions. [2022-01-18 11:17:50,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6836 states and 18918 transitions. [2022-01-18 11:17:50,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:50,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:50,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:50,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 11:17:50,753 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:50,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:50,753 INFO L85 PathProgramCache]: Analyzing trace with hash 622771421, now seen corresponding path program 1 times [2022-01-18 11:17:50,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:50,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755723717] [2022-01-18 11:17:50,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:50,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:50,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:50,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:50,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755723717] [2022-01-18 11:17:50,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755723717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:50,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:50,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:17:50,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392499749] [2022-01-18 11:17:50,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:50,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:17:50,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:50,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:17:50,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:17:50,776 INFO L87 Difference]: Start difference. First operand 6836 states and 18918 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:50,807 INFO L93 Difference]: Finished difference Result 6570 states and 17521 transitions. [2022-01-18 11:17:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:17:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:50,818 INFO L225 Difference]: With dead ends: 6570 [2022-01-18 11:17:50,818 INFO L226 Difference]: Without dead ends: 6570 [2022-01-18 11:17:50,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:17:50,819 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 95 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:50,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 253 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:17:50,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6570 states. [2022-01-18 11:17:50,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6570 to 6205. [2022-01-18 11:17:50,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 6204 states have (on average 2.6832688588007736) internal successors, (16647), 6204 states have internal predecessors, (16647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 16647 transitions. [2022-01-18 11:17:50,952 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 16647 transitions. Word has length 91 [2022-01-18 11:17:50,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:50,953 INFO L470 AbstractCegarLoop]: Abstraction has 6205 states and 16647 transitions. [2022-01-18 11:17:50,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:50,953 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 16647 transitions. [2022-01-18 11:17:50,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:50,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:50,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:50,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 11:17:50,962 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:50,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:50,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1752945699, now seen corresponding path program 1 times [2022-01-18 11:17:50,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:50,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260197897] [2022-01-18 11:17:50,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:50,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:51,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:51,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:51,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260197897] [2022-01-18 11:17:51,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260197897] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:51,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:51,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:51,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222365655] [2022-01-18 11:17:51,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:51,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:51,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:51,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:51,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:51,079 INFO L87 Difference]: Start difference. First operand 6205 states and 16647 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:51,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:51,242 INFO L93 Difference]: Finished difference Result 7012 states and 18742 transitions. [2022-01-18 11:17:51,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:17:51,242 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:51,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:51,254 INFO L225 Difference]: With dead ends: 7012 [2022-01-18 11:17:51,254 INFO L226 Difference]: Without dead ends: 6752 [2022-01-18 11:17:51,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:17:51,255 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 117 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:51,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 1148 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:51,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6752 states. [2022-01-18 11:17:51,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6752 to 6217. [2022-01-18 11:17:51,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6217 states, 6216 states have (on average 2.6827541827541825) internal successors, (16676), 6216 states have internal predecessors, (16676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:51,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6217 states to 6217 states and 16676 transitions. [2022-01-18 11:17:51,360 INFO L78 Accepts]: Start accepts. Automaton has 6217 states and 16676 transitions. Word has length 91 [2022-01-18 11:17:51,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:51,360 INFO L470 AbstractCegarLoop]: Abstraction has 6217 states and 16676 transitions. [2022-01-18 11:17:51,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:51,360 INFO L276 IsEmpty]: Start isEmpty. Operand 6217 states and 16676 transitions. [2022-01-18 11:17:51,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:51,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:51,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:51,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 11:17:51,369 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:51,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:51,369 INFO L85 PathProgramCache]: Analyzing trace with hash 373173125, now seen corresponding path program 2 times [2022-01-18 11:17:51,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:51,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428442708] [2022-01-18 11:17:51,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:51,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:51,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:51,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428442708] [2022-01-18 11:17:51,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428442708] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:51,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:51,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:51,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639642529] [2022-01-18 11:17:51,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:51,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:51,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:51,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:51,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:51,465 INFO L87 Difference]: Start difference. First operand 6217 states and 16676 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:51,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:51,651 INFO L93 Difference]: Finished difference Result 6982 states and 18664 transitions. [2022-01-18 11:17:51,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:17:51,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:51,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:51,662 INFO L225 Difference]: With dead ends: 6982 [2022-01-18 11:17:51,662 INFO L226 Difference]: Without dead ends: 6721 [2022-01-18 11:17:51,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:17:51,663 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 105 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:51,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 1535 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:51,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2022-01-18 11:17:51,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6213. [2022-01-18 11:17:51,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 2.6827108821635544) internal successors, (16665), 6212 states have internal predecessors, (16665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:51,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 16665 transitions. [2022-01-18 11:17:51,753 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 16665 transitions. Word has length 91 [2022-01-18 11:17:51,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:51,753 INFO L470 AbstractCegarLoop]: Abstraction has 6213 states and 16665 transitions. [2022-01-18 11:17:51,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 16665 transitions. [2022-01-18 11:17:51,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:51,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:51,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:51,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 11:17:51,761 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:51,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:51,762 INFO L85 PathProgramCache]: Analyzing trace with hash -373819413, now seen corresponding path program 3 times [2022-01-18 11:17:51,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:51,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623912914] [2022-01-18 11:17:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:51,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:51,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:51,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623912914] [2022-01-18 11:17:51,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623912914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:51,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:51,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:51,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807555970] [2022-01-18 11:17:51,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:51,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:51,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:51,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:51,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:51,843 INFO L87 Difference]: Start difference. First operand 6213 states and 16665 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:52,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:52,032 INFO L93 Difference]: Finished difference Result 7034 states and 18791 transitions. [2022-01-18 11:17:52,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:17:52,033 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:52,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:52,044 INFO L225 Difference]: With dead ends: 7034 [2022-01-18 11:17:52,044 INFO L226 Difference]: Without dead ends: 6745 [2022-01-18 11:17:52,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:17:52,045 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 142 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:52,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1384 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:52,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6745 states. [2022-01-18 11:17:52,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 6209. [2022-01-18 11:17:52,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6209 states, 6208 states have (on average 2.682667525773196) internal successors, (16654), 6208 states have internal predecessors, (16654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:52,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6209 states to 6209 states and 16654 transitions. [2022-01-18 11:17:52,138 INFO L78 Accepts]: Start accepts. Automaton has 6209 states and 16654 transitions. Word has length 91 [2022-01-18 11:17:52,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:52,139 INFO L470 AbstractCegarLoop]: Abstraction has 6209 states and 16654 transitions. [2022-01-18 11:17:52,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:52,139 INFO L276 IsEmpty]: Start isEmpty. Operand 6209 states and 16654 transitions. [2022-01-18 11:17:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:52,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:52,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:52,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 11:17:52,146 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:52,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:52,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1638310291, now seen corresponding path program 4 times [2022-01-18 11:17:52,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:52,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151719907] [2022-01-18 11:17:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:52,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:52,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:52,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:52,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151719907] [2022-01-18 11:17:52,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151719907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:52,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:52,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:52,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712856436] [2022-01-18 11:17:52,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:52,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:52,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:52,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:52,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:52,228 INFO L87 Difference]: Start difference. First operand 6209 states and 16654 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:52,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:52,456 INFO L93 Difference]: Finished difference Result 7132 states and 19043 transitions. [2022-01-18 11:17:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:17:52,456 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:52,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:52,467 INFO L225 Difference]: With dead ends: 7132 [2022-01-18 11:17:52,467 INFO L226 Difference]: Without dead ends: 6841 [2022-01-18 11:17:52,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:17:52,468 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 166 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1899 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:52,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 1899 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6841 states. [2022-01-18 11:17:52,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6841 to 6213. [2022-01-18 11:17:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 2.6820669671603348) internal successors, (16661), 6212 states have internal predecessors, (16661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 16661 transitions. [2022-01-18 11:17:52,556 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 16661 transitions. Word has length 91 [2022-01-18 11:17:52,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:52,557 INFO L470 AbstractCegarLoop]: Abstraction has 6213 states and 16661 transitions. [2022-01-18 11:17:52,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:52,557 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 16661 transitions. [2022-01-18 11:17:52,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:52,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:52,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:52,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 11:17:52,565 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:52,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:52,565 INFO L85 PathProgramCache]: Analyzing trace with hash 240079225, now seen corresponding path program 5 times [2022-01-18 11:17:52,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:52,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5049428] [2022-01-18 11:17:52,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:52,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:52,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:52,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:52,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5049428] [2022-01-18 11:17:52,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5049428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:52,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:52,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:52,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103269643] [2022-01-18 11:17:52,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:52,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:52,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:52,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:52,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:52,645 INFO L87 Difference]: Start difference. First operand 6213 states and 16661 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:52,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:52,856 INFO L93 Difference]: Finished difference Result 7016 states and 18745 transitions. [2022-01-18 11:17:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:17:52,856 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:52,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:52,865 INFO L225 Difference]: With dead ends: 7016 [2022-01-18 11:17:52,865 INFO L226 Difference]: Without dead ends: 6756 [2022-01-18 11:17:52,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:17:52,867 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 118 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:52,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 1853 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:52,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6756 states. [2022-01-18 11:17:52,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6756 to 6217. [2022-01-18 11:17:52,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6217 states, 6216 states have (on average 2.6814671814671813) internal successors, (16668), 6216 states have internal predecessors, (16668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:52,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6217 states to 6217 states and 16668 transitions. [2022-01-18 11:17:52,961 INFO L78 Accepts]: Start accepts. Automaton has 6217 states and 16668 transitions. Word has length 91 [2022-01-18 11:17:52,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:52,961 INFO L470 AbstractCegarLoop]: Abstraction has 6217 states and 16668 transitions. [2022-01-18 11:17:52,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand 6217 states and 16668 transitions. [2022-01-18 11:17:52,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:52,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:52,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:52,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 11:17:52,970 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:52,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:52,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1928769247, now seen corresponding path program 6 times [2022-01-18 11:17:52,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:52,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428077302] [2022-01-18 11:17:52,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:52,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:53,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:53,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:53,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428077302] [2022-01-18 11:17:53,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428077302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:53,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:53,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:53,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060895309] [2022-01-18 11:17:53,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:53,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:53,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:53,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:53,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:53,053 INFO L87 Difference]: Start difference. First operand 6217 states and 16668 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:53,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:53,236 INFO L93 Difference]: Finished difference Result 6962 states and 18601 transitions. [2022-01-18 11:17:53,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:17:53,237 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:53,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:53,247 INFO L225 Difference]: With dead ends: 6962 [2022-01-18 11:17:53,247 INFO L226 Difference]: Without dead ends: 6693 [2022-01-18 11:17:53,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:17:53,248 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 102 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:53,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1815 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:53,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6693 states. [2022-01-18 11:17:53,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6693 to 6205. [2022-01-18 11:17:53,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 6204 states have (on average 2.6826241134751774) internal successors, (16643), 6204 states have internal predecessors, (16643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 16643 transitions. [2022-01-18 11:17:53,341 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 16643 transitions. Word has length 91 [2022-01-18 11:17:53,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:53,341 INFO L470 AbstractCegarLoop]: Abstraction has 6205 states and 16643 transitions. [2022-01-18 11:17:53,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:53,341 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 16643 transitions. [2022-01-18 11:17:53,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:53,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:53,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:53,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 11:17:53,349 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:53,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:53,349 INFO L85 PathProgramCache]: Analyzing trace with hash -249019585, now seen corresponding path program 7 times [2022-01-18 11:17:53,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:53,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599753314] [2022-01-18 11:17:53,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:53,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:53,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:53,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599753314] [2022-01-18 11:17:53,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599753314] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:53,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:53,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:53,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684095022] [2022-01-18 11:17:53,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:53,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:53,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:53,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:53,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:53,435 INFO L87 Difference]: Start difference. First operand 6205 states and 16643 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:53,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:53,709 INFO L93 Difference]: Finished difference Result 7704 states and 20375 transitions. [2022-01-18 11:17:53,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:17:53,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:53,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:53,720 INFO L225 Difference]: With dead ends: 7704 [2022-01-18 11:17:53,720 INFO L226 Difference]: Without dead ends: 7278 [2022-01-18 11:17:53,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:17:53,721 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 363 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 2179 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:53,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 2179 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:53,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7278 states. [2022-01-18 11:17:53,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7278 to 6105. [2022-01-18 11:17:53,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6105 states, 6104 states have (on average 2.686762778505898) internal successors, (16400), 6104 states have internal predecessors, (16400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6105 states to 6105 states and 16400 transitions. [2022-01-18 11:17:53,812 INFO L78 Accepts]: Start accepts. Automaton has 6105 states and 16400 transitions. Word has length 91 [2022-01-18 11:17:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:53,812 INFO L470 AbstractCegarLoop]: Abstraction has 6105 states and 16400 transitions. [2022-01-18 11:17:53,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6105 states and 16400 transitions. [2022-01-18 11:17:53,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:53,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:53,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:53,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 11:17:53,820 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:53,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:53,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1585866057, now seen corresponding path program 8 times [2022-01-18 11:17:53,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:53,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127307525] [2022-01-18 11:17:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:53,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:53,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:53,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127307525] [2022-01-18 11:17:53,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127307525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:53,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:53,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:53,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907433194] [2022-01-18 11:17:53,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:53,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:53,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:53,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:53,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:53,909 INFO L87 Difference]: Start difference. First operand 6105 states and 16400 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:54,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:54,158 INFO L93 Difference]: Finished difference Result 6956 states and 18591 transitions. [2022-01-18 11:17:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:17:54,159 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:54,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:54,168 INFO L225 Difference]: With dead ends: 6956 [2022-01-18 11:17:54,168 INFO L226 Difference]: Without dead ends: 6665 [2022-01-18 11:17:54,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:17:54,169 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 198 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:54,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 2150 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:54,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6665 states. [2022-01-18 11:17:54,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6665 to 6109. [2022-01-18 11:17:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6109 states, 6108 states have (on average 2.68614931237721) internal successors, (16407), 6108 states have internal predecessors, (16407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:54,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6109 states to 6109 states and 16407 transitions. [2022-01-18 11:17:54,257 INFO L78 Accepts]: Start accepts. Automaton has 6109 states and 16407 transitions. Word has length 91 [2022-01-18 11:17:54,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:54,257 INFO L470 AbstractCegarLoop]: Abstraction has 6109 states and 16407 transitions. [2022-01-18 11:17:54,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:54,257 INFO L276 IsEmpty]: Start isEmpty. Operand 6109 states and 16407 transitions. [2022-01-18 11:17:54,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:54,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:54,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:54,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 11:17:54,264 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:54,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:54,265 INFO L85 PathProgramCache]: Analyzing trace with hash 292523459, now seen corresponding path program 9 times [2022-01-18 11:17:54,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:54,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073300503] [2022-01-18 11:17:54,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:54,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:54,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:54,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073300503] [2022-01-18 11:17:54,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073300503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:54,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:54,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:54,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220946363] [2022-01-18 11:17:54,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:54,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:54,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:54,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:54,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:54,348 INFO L87 Difference]: Start difference. First operand 6109 states and 16407 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:54,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:54,564 INFO L93 Difference]: Finished difference Result 6840 states and 18293 transitions. [2022-01-18 11:17:54,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:17:54,564 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:54,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:54,574 INFO L225 Difference]: With dead ends: 6840 [2022-01-18 11:17:54,574 INFO L226 Difference]: Without dead ends: 6580 [2022-01-18 11:17:54,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:17:54,575 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 148 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:54,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 2092 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6580 states. [2022-01-18 11:17:54,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6580 to 6113. [2022-01-18 11:17:54,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6113 states, 6112 states have (on average 2.6855366492146597) internal successors, (16414), 6112 states have internal predecessors, (16414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:54,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6113 states to 6113 states and 16414 transitions. [2022-01-18 11:17:54,688 INFO L78 Accepts]: Start accepts. Automaton has 6113 states and 16414 transitions. Word has length 91 [2022-01-18 11:17:54,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:54,688 INFO L470 AbstractCegarLoop]: Abstraction has 6113 states and 16414 transitions. [2022-01-18 11:17:54,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:54,689 INFO L276 IsEmpty]: Start isEmpty. Operand 6113 states and 16414 transitions. [2022-01-18 11:17:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:54,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:54,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:54,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 11:17:54,697 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:54,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:54,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1876325013, now seen corresponding path program 10 times [2022-01-18 11:17:54,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:54,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180668937] [2022-01-18 11:17:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:54,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:54,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:54,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180668937] [2022-01-18 11:17:54,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180668937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:54,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:54,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:54,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755974924] [2022-01-18 11:17:54,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:54,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:54,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:54,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:54,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:54,772 INFO L87 Difference]: Start difference. First operand 6113 states and 16414 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:54,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:54,962 INFO L93 Difference]: Finished difference Result 6786 states and 18149 transitions. [2022-01-18 11:17:54,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:17:54,962 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:54,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:54,972 INFO L225 Difference]: With dead ends: 6786 [2022-01-18 11:17:54,972 INFO L226 Difference]: Without dead ends: 6485 [2022-01-18 11:17:54,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:17:54,973 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 136 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:54,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1650 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:54,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6485 states. [2022-01-18 11:17:55,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6485 to 6069. [2022-01-18 11:17:55,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6069 states, 6068 states have (on average 2.688529993408042) internal successors, (16314), 6068 states have internal predecessors, (16314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 16314 transitions. [2022-01-18 11:17:55,073 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 16314 transitions. Word has length 91 [2022-01-18 11:17:55,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:55,073 INFO L470 AbstractCegarLoop]: Abstraction has 6069 states and 16314 transitions. [2022-01-18 11:17:55,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,073 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 16314 transitions. [2022-01-18 11:17:55,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:55,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:55,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:55,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 11:17:55,081 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:55,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:55,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1406793127, now seen corresponding path program 11 times [2022-01-18 11:17:55,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:55,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689069824] [2022-01-18 11:17:55,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:55,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:55,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:55,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689069824] [2022-01-18 11:17:55,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689069824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:55,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:55,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:55,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631726334] [2022-01-18 11:17:55,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:55,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:55,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:55,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:55,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:55,162 INFO L87 Difference]: Start difference. First operand 6069 states and 16314 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:55,339 INFO L93 Difference]: Finished difference Result 7195 states and 19271 transitions. [2022-01-18 11:17:55,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:17:55,339 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:55,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:55,352 INFO L225 Difference]: With dead ends: 7195 [2022-01-18 11:17:55,352 INFO L226 Difference]: Without dead ends: 6935 [2022-01-18 11:17:55,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:17:55,353 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 134 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:55,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 1316 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:55,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2022-01-18 11:17:55,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6089. [2022-01-18 11:17:55,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 6088 states have (on average 2.6880749014454666) internal successors, (16365), 6088 states have internal predecessors, (16365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 16365 transitions. [2022-01-18 11:17:55,458 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 16365 transitions. Word has length 91 [2022-01-18 11:17:55,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:55,458 INFO L470 AbstractCegarLoop]: Abstraction has 6089 states and 16365 transitions. [2022-01-18 11:17:55,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,458 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 16365 transitions. [2022-01-18 11:17:55,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:55,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:55,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:55,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 11:17:55,466 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:55,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:55,466 INFO L85 PathProgramCache]: Analyzing trace with hash -762055345, now seen corresponding path program 12 times [2022-01-18 11:17:55,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:55,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254543528] [2022-01-18 11:17:55,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:55,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:55,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:55,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254543528] [2022-01-18 11:17:55,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254543528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:55,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:55,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:55,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122082702] [2022-01-18 11:17:55,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:55,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:55,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:55,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:55,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:55,552 INFO L87 Difference]: Start difference. First operand 6089 states and 16365 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:55,748 INFO L93 Difference]: Finished difference Result 7165 states and 19193 transitions. [2022-01-18 11:17:55,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:17:55,748 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:55,759 INFO L225 Difference]: With dead ends: 7165 [2022-01-18 11:17:55,759 INFO L226 Difference]: Without dead ends: 6904 [2022-01-18 11:17:55,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:17:55,760 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 119 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:55,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1309 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:55,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6904 states. [2022-01-18 11:17:55,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6904 to 6085. [2022-01-18 11:17:55,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 2.6880341880341883) internal successors, (16354), 6084 states have internal predecessors, (16354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 16354 transitions. [2022-01-18 11:17:55,860 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 16354 transitions. Word has length 91 [2022-01-18 11:17:55,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:55,861 INFO L470 AbstractCegarLoop]: Abstraction has 6085 states and 16354 transitions. [2022-01-18 11:17:55,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:55,861 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 16354 transitions. [2022-01-18 11:17:55,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:55,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:55,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:55,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 11:17:55,869 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:55,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:55,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1509047883, now seen corresponding path program 13 times [2022-01-18 11:17:55,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:55,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778223877] [2022-01-18 11:17:55,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:55,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:55,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:55,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778223877] [2022-01-18 11:17:55,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778223877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:55,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:55,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:55,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83658696] [2022-01-18 11:17:55,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:55,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:55,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:55,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:55,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:55,949 INFO L87 Difference]: Start difference. First operand 6085 states and 16354 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:56,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:56,194 INFO L93 Difference]: Finished difference Result 7249 states and 19408 transitions. [2022-01-18 11:17:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:17:56,194 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:56,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:56,205 INFO L225 Difference]: With dead ends: 7249 [2022-01-18 11:17:56,205 INFO L226 Difference]: Without dead ends: 6960 [2022-01-18 11:17:56,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:17:56,205 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 154 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:56,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 1870 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:56,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2022-01-18 11:17:56,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6081. [2022-01-18 11:17:56,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6081 states, 6080 states have (on average 2.6879934210526315) internal successors, (16343), 6080 states have internal predecessors, (16343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:56,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6081 states to 6081 states and 16343 transitions. [2022-01-18 11:17:56,286 INFO L78 Accepts]: Start accepts. Automaton has 6081 states and 16343 transitions. Word has length 91 [2022-01-18 11:17:56,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:56,286 INFO L470 AbstractCegarLoop]: Abstraction has 6081 states and 16343 transitions. [2022-01-18 11:17:56,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 6081 states and 16343 transitions. [2022-01-18 11:17:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:56,293 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:56,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:56,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 11:17:56,293 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:56,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:56,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1521428535, now seen corresponding path program 14 times [2022-01-18 11:17:56,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:56,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230169328] [2022-01-18 11:17:56,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:56,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:56,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:56,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230169328] [2022-01-18 11:17:56,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230169328] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:56,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:56,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:56,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5944502] [2022-01-18 11:17:56,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:56,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:56,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:56,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:56,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:56,371 INFO L87 Difference]: Start difference. First operand 6081 states and 16343 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:56,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:56,583 INFO L93 Difference]: Finished difference Result 7239 states and 19363 transitions. [2022-01-18 11:17:56,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:17:56,583 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:56,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:56,593 INFO L225 Difference]: With dead ends: 7239 [2022-01-18 11:17:56,593 INFO L226 Difference]: Without dead ends: 6948 [2022-01-18 11:17:56,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:17:56,594 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 175 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:56,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1427 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:56,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6948 states. [2022-01-18 11:17:56,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6948 to 6085. [2022-01-18 11:17:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 2.687376725838264) internal successors, (16350), 6084 states have internal predecessors, (16350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:56,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 16350 transitions. [2022-01-18 11:17:56,668 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 16350 transitions. Word has length 91 [2022-01-18 11:17:56,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:56,668 INFO L470 AbstractCegarLoop]: Abstraction has 6085 states and 16350 transitions. [2022-01-18 11:17:56,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:56,669 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 16350 transitions. [2022-01-18 11:17:56,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:56,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:56,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:56,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 11:17:56,675 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:56,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:56,675 INFO L85 PathProgramCache]: Analyzing trace with hash -895149245, now seen corresponding path program 15 times [2022-01-18 11:17:56,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:56,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022934004] [2022-01-18 11:17:56,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:56,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:56,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:56,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022934004] [2022-01-18 11:17:56,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022934004] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:56,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:56,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:56,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109846152] [2022-01-18 11:17:56,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:56,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:56,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:56,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:56,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:56,749 INFO L87 Difference]: Start difference. First operand 6085 states and 16350 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:56,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:56,941 INFO L93 Difference]: Finished difference Result 7155 states and 19153 transitions. [2022-01-18 11:17:56,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:17:56,942 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:56,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:56,952 INFO L225 Difference]: With dead ends: 7155 [2022-01-18 11:17:56,953 INFO L226 Difference]: Without dead ends: 6895 [2022-01-18 11:17:56,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:17:56,953 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 149 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:56,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1149 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:56,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2022-01-18 11:17:57,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 6089. [2022-01-18 11:17:57,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 6088 states have (on average 2.686760840998686) internal successors, (16357), 6088 states have internal predecessors, (16357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 16357 transitions. [2022-01-18 11:17:57,038 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 16357 transitions. Word has length 91 [2022-01-18 11:17:57,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:57,039 INFO L470 AbstractCegarLoop]: Abstraction has 6089 states and 16357 transitions. [2022-01-18 11:17:57,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,039 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 16357 transitions. [2022-01-18 11:17:57,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:57,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:57,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:57,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 11:17:57,046 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:57,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:57,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1230969579, now seen corresponding path program 16 times [2022-01-18 11:17:57,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:57,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534580321] [2022-01-18 11:17:57,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:57,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:57,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:57,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534580321] [2022-01-18 11:17:57,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534580321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:57,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:57,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:57,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768085879] [2022-01-18 11:17:57,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:57,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:57,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:57,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:57,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:57,128 INFO L87 Difference]: Start difference. First operand 6089 states and 16357 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:57,290 INFO L93 Difference]: Finished difference Result 7117 states and 19053 transitions. [2022-01-18 11:17:57,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:17:57,290 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:57,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:57,301 INFO L225 Difference]: With dead ends: 7117 [2022-01-18 11:17:57,301 INFO L226 Difference]: Without dead ends: 6848 [2022-01-18 11:17:57,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:17:57,301 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 117 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:57,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 1154 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:57,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2022-01-18 11:17:57,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 6077. [2022-01-18 11:17:57,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 2.6879526003949965) internal successors, (16332), 6076 states have internal predecessors, (16332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 16332 transitions. [2022-01-18 11:17:57,397 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 16332 transitions. Word has length 91 [2022-01-18 11:17:57,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:57,397 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 16332 transitions. [2022-01-18 11:17:57,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 16332 transitions. [2022-01-18 11:17:57,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:57,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:57,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:57,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 11:17:57,404 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:57,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:57,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1849223639, now seen corresponding path program 17 times [2022-01-18 11:17:57,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:57,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643133241] [2022-01-18 11:17:57,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:57,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:57,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:57,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643133241] [2022-01-18 11:17:57,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643133241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:57,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:57,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:57,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253738038] [2022-01-18 11:17:57,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:57,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:57,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:57,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:57,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:57,485 INFO L87 Difference]: Start difference. First operand 6077 states and 16332 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:57,654 INFO L93 Difference]: Finished difference Result 7099 states and 19003 transitions. [2022-01-18 11:17:57,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:17:57,654 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:57,664 INFO L225 Difference]: With dead ends: 7099 [2022-01-18 11:17:57,664 INFO L226 Difference]: Without dead ends: 6839 [2022-01-18 11:17:57,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:17:57,665 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 183 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:57,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 1610 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:57,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2022-01-18 11:17:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6093. [2022-01-18 11:17:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6093 states, 6092 states have (on average 2.687458962573867) internal successors, (16372), 6092 states have internal predecessors, (16372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 16372 transitions. [2022-01-18 11:17:57,746 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 16372 transitions. Word has length 91 [2022-01-18 11:17:57,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:57,746 INFO L470 AbstractCegarLoop]: Abstraction has 6093 states and 16372 transitions. [2022-01-18 11:17:57,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:57,746 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 16372 transitions. [2022-01-18 11:17:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:57,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:57,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:57,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 11:17:57,753 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:57,753 INFO L85 PathProgramCache]: Analyzing trace with hash 276895185, now seen corresponding path program 18 times [2022-01-18 11:17:57,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:57,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025669752] [2022-01-18 11:17:57,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:57,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:57,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:57,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:57,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025669752] [2022-01-18 11:17:57,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025669752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:57,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:57,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:57,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193932012] [2022-01-18 11:17:57,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:57,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:57,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:57,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:57,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:57,837 INFO L87 Difference]: Start difference. First operand 6093 states and 16372 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:58,013 INFO L93 Difference]: Finished difference Result 7073 states and 18936 transitions. [2022-01-18 11:17:58,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:17:58,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:58,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:58,022 INFO L225 Difference]: With dead ends: 7073 [2022-01-18 11:17:58,022 INFO L226 Difference]: Without dead ends: 6812 [2022-01-18 11:17:58,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:17:58,023 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 189 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:58,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 1774 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:58,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6812 states. [2022-01-18 11:17:58,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6812 to 6089. [2022-01-18 11:17:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 6088 states have (on average 2.687417871222076) internal successors, (16361), 6088 states have internal predecessors, (16361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 16361 transitions. [2022-01-18 11:17:58,099 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 16361 transitions. Word has length 91 [2022-01-18 11:17:58,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:58,099 INFO L470 AbstractCegarLoop]: Abstraction has 6089 states and 16361 transitions. [2022-01-18 11:17:58,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 16361 transitions. [2022-01-18 11:17:58,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:58,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:58,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:58,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 11:17:58,106 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:58,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:58,106 INFO L85 PathProgramCache]: Analyzing trace with hash -470097353, now seen corresponding path program 19 times [2022-01-18 11:17:58,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:58,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182414878] [2022-01-18 11:17:58,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:58,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:58,174 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 11:17:58,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:58,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182414878] [2022-01-18 11:17:58,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182414878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:58,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:58,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:58,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128450373] [2022-01-18 11:17:58,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:58,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:58,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:58,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:58,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:58,176 INFO L87 Difference]: Start difference. First operand 6089 states and 16361 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:58,391 INFO L93 Difference]: Finished difference Result 7097 states and 18998 transitions. [2022-01-18 11:17:58,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:17:58,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:58,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:58,402 INFO L225 Difference]: With dead ends: 7097 [2022-01-18 11:17:58,403 INFO L226 Difference]: Without dead ends: 6808 [2022-01-18 11:17:58,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:17:58,404 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 231 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:58,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 1594 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:58,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6808 states. [2022-01-18 11:17:58,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6808 to 6085. [2022-01-18 11:17:58,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 2.687376725838264) internal successors, (16350), 6084 states have internal predecessors, (16350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 16350 transitions. [2022-01-18 11:17:58,486 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 16350 transitions. Word has length 91 [2022-01-18 11:17:58,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:58,486 INFO L470 AbstractCegarLoop]: Abstraction has 6085 states and 16350 transitions. [2022-01-18 11:17:58,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,487 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 16350 transitions. [2022-01-18 11:17:58,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:58,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:58,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:58,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 11:17:58,493 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:58,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:58,494 INFO L85 PathProgramCache]: Analyzing trace with hash -213851739, now seen corresponding path program 20 times [2022-01-18 11:17:58,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:58,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514498619] [2022-01-18 11:17:58,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:58,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:58,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:58,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:58,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514498619] [2022-01-18 11:17:58,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514498619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:58,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:58,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:58,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468126721] [2022-01-18 11:17:58,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:58,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:58,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:58,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:58,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:58,571 INFO L87 Difference]: Start difference. First operand 6085 states and 16350 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:58,795 INFO L93 Difference]: Finished difference Result 7662 states and 20347 transitions. [2022-01-18 11:17:58,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:17:58,796 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:58,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:58,806 INFO L225 Difference]: With dead ends: 7662 [2022-01-18 11:17:58,806 INFO L226 Difference]: Without dead ends: 7229 [2022-01-18 11:17:58,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:17:58,807 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 398 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:58,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 1441 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:17:58,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7229 states. [2022-01-18 11:17:58,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7229 to 5993. [2022-01-18 11:17:58,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5993 states, 5992 states have (on average 2.6899198931909214) internal successors, (16118), 5992 states have internal predecessors, (16118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5993 states to 5993 states and 16118 transitions. [2022-01-18 11:17:58,890 INFO L78 Accepts]: Start accepts. Automaton has 5993 states and 16118 transitions. Word has length 91 [2022-01-18 11:17:58,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:58,891 INFO L470 AbstractCegarLoop]: Abstraction has 5993 states and 16118 transitions. [2022-01-18 11:17:58,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,891 INFO L276 IsEmpty]: Start isEmpty. Operand 5993 states and 16118 transitions. [2022-01-18 11:17:58,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:58,897 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:58,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:58,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 11:17:58,897 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:58,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:58,897 INFO L85 PathProgramCache]: Analyzing trace with hash 882655945, now seen corresponding path program 1 times [2022-01-18 11:17:58,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:58,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262900398] [2022-01-18 11:17:58,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:58,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:58,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:58,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:58,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262900398] [2022-01-18 11:17:58,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262900398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:58,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:58,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:17:58,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725259476] [2022-01-18 11:17:58,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:58,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:17:58,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:58,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:17:58,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:17:58,910 INFO L87 Difference]: Start difference. First operand 5993 states and 16118 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:58,929 INFO L93 Difference]: Finished difference Result 5339 states and 14002 transitions. [2022-01-18 11:17:58,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:17:58,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:58,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:58,935 INFO L225 Difference]: With dead ends: 5339 [2022-01-18 11:17:58,936 INFO L226 Difference]: Without dead ends: 5339 [2022-01-18 11:17:58,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:17:58,936 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 93 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:58,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 190 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:17:58,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2022-01-18 11:17:58,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2022-01-18 11:17:58,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.623079805170476) internal successors, (14002), 5338 states have internal predecessors, (14002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 14002 transitions. [2022-01-18 11:17:58,996 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 14002 transitions. Word has length 91 [2022-01-18 11:17:58,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:58,997 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 14002 transitions. [2022-01-18 11:17:58,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:58,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 14002 transitions. [2022-01-18 11:17:59,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:59,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:59,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:59,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 11:17:59,001 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:59,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:59,001 INFO L85 PathProgramCache]: Analyzing trace with hash -694011287, now seen corresponding path program 1 times [2022-01-18 11:17:59,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:59,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876792832] [2022-01-18 11:17:59,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:59,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:59,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:59,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876792832] [2022-01-18 11:17:59,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876792832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:59,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:59,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:59,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353761984] [2022-01-18 11:17:59,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:59,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:59,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:59,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:59,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:59,075 INFO L87 Difference]: Start difference. First operand 5339 states and 14002 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:59,275 INFO L93 Difference]: Finished difference Result 5930 states and 15498 transitions. [2022-01-18 11:17:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:17:59,276 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:59,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:59,282 INFO L225 Difference]: With dead ends: 5930 [2022-01-18 11:17:59,282 INFO L226 Difference]: Without dead ends: 5651 [2022-01-18 11:17:59,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:17:59,282 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 129 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:59,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 1433 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2022-01-18 11:17:59,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5347. [2022-01-18 11:17:59,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5346 states have (on average 2.6225215114104) internal successors, (14020), 5346 states have internal predecessors, (14020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14020 transitions. [2022-01-18 11:17:59,339 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14020 transitions. Word has length 91 [2022-01-18 11:17:59,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:59,339 INFO L470 AbstractCegarLoop]: Abstraction has 5347 states and 14020 transitions. [2022-01-18 11:17:59,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14020 transitions. [2022-01-18 11:17:59,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:59,343 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:59,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:59,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 11:17:59,344 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:59,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:59,344 INFO L85 PathProgramCache]: Analyzing trace with hash -985717315, now seen corresponding path program 2 times [2022-01-18 11:17:59,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:59,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291792734] [2022-01-18 11:17:59,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:59,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:59,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:59,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291792734] [2022-01-18 11:17:59,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291792734] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:59,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:59,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:59,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198131752] [2022-01-18 11:17:59,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:59,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:59,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:59,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:59,415 INFO L87 Difference]: Start difference. First operand 5347 states and 14020 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:59,583 INFO L93 Difference]: Finished difference Result 5864 states and 15324 transitions. [2022-01-18 11:17:59,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:17:59,583 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:59,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:59,590 INFO L225 Difference]: With dead ends: 5864 [2022-01-18 11:17:59,590 INFO L226 Difference]: Without dead ends: 5610 [2022-01-18 11:17:59,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:17:59,590 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 100 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:59,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 1274 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-01-18 11:17:59,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5351. [2022-01-18 11:17:59,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5350 states have (on average 2.621869158878505) internal successors, (14027), 5350 states have internal predecessors, (14027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14027 transitions. [2022-01-18 11:17:59,646 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14027 transitions. Word has length 91 [2022-01-18 11:17:59,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:59,647 INFO L470 AbstractCegarLoop]: Abstraction has 5351 states and 14027 transitions. [2022-01-18 11:17:59,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14027 transitions. [2022-01-18 11:17:59,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:59,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:59,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:59,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 11:17:59,665 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:59,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:59,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1140401509, now seen corresponding path program 3 times [2022-01-18 11:17:59,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:59,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301619757] [2022-01-18 11:17:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:59,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:17:59,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:17:59,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:17:59,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301619757] [2022-01-18 11:17:59,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301619757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:17:59,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:17:59,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:17:59,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341184069] [2022-01-18 11:17:59,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:17:59,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:17:59,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:17:59,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:17:59,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:17:59,750 INFO L87 Difference]: Start difference. First operand 5351 states and 14027 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:17:59,907 INFO L93 Difference]: Finished difference Result 5826 states and 15224 transitions. [2022-01-18 11:17:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:17:59,908 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:17:59,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:17:59,914 INFO L225 Difference]: With dead ends: 5826 [2022-01-18 11:17:59,914 INFO L226 Difference]: Without dead ends: 5567 [2022-01-18 11:17:59,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:17:59,915 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 87 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:17:59,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1147 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:17:59,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5567 states. [2022-01-18 11:17:59,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5567 to 5343. [2022-01-18 11:17:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6224260576563085) internal successors, (14009), 5342 states have internal predecessors, (14009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 14009 transitions. [2022-01-18 11:17:59,969 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 14009 transitions. Word has length 91 [2022-01-18 11:17:59,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:17:59,969 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 14009 transitions. [2022-01-18 11:17:59,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:17:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 14009 transitions. [2022-01-18 11:17:59,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:17:59,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:17:59,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:17:59,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 11:17:59,974 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:17:59,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:17:59,974 INFO L85 PathProgramCache]: Analyzing trace with hash 863471305, now seen corresponding path program 4 times [2022-01-18 11:17:59,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:17:59,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977730545] [2022-01-18 11:17:59,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:17:59,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:17:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:00,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:00,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:00,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977730545] [2022-01-18 11:18:00,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977730545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:00,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:00,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:00,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159772900] [2022-01-18 11:18:00,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:00,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:00,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:00,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:00,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:00,041 INFO L87 Difference]: Start difference. First operand 5343 states and 14009 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:00,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:00,235 INFO L93 Difference]: Finished difference Result 5961 states and 15572 transitions. [2022-01-18 11:18:00,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:18:00,236 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:00,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:00,242 INFO L225 Difference]: With dead ends: 5961 [2022-01-18 11:18:00,243 INFO L226 Difference]: Without dead ends: 5676 [2022-01-18 11:18:00,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:18:00,243 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 137 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:00,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 1475 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:18:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-01-18 11:18:00,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5347. [2022-01-18 11:18:00,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5346 states have (on average 2.621773288439955) internal successors, (14016), 5346 states have internal predecessors, (14016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:00,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14016 transitions. [2022-01-18 11:18:00,301 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14016 transitions. Word has length 91 [2022-01-18 11:18:00,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:00,301 INFO L470 AbstractCegarLoop]: Abstraction has 5347 states and 14016 transitions. [2022-01-18 11:18:00,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:00,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14016 transitions. [2022-01-18 11:18:00,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:00,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:00,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:00,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 11:18:00,306 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:00,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:00,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1480867477, now seen corresponding path program 5 times [2022-01-18 11:18:00,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:00,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720072905] [2022-01-18 11:18:00,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:00,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:00,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:00,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:00,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720072905] [2022-01-18 11:18:00,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720072905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:00,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:00,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:00,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600074747] [2022-01-18 11:18:00,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:00,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:00,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:00,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:00,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:00,378 INFO L87 Difference]: Start difference. First operand 5347 states and 14016 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:00,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:00,553 INFO L93 Difference]: Finished difference Result 5872 states and 15342 transitions. [2022-01-18 11:18:00,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:18:00,554 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:00,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:00,561 INFO L225 Difference]: With dead ends: 5872 [2022-01-18 11:18:00,561 INFO L226 Difference]: Without dead ends: 5618 [2022-01-18 11:18:00,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:18:00,562 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 98 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:00,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 1445 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:18:00,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2022-01-18 11:18:00,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 5351. [2022-01-18 11:18:00,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5350 states have (on average 2.621121495327103) internal successors, (14023), 5350 states have internal predecessors, (14023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:00,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14023 transitions. [2022-01-18 11:18:00,632 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14023 transitions. Word has length 91 [2022-01-18 11:18:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:00,633 INFO L470 AbstractCegarLoop]: Abstraction has 5351 states and 14023 transitions. [2022-01-18 11:18:00,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:00,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14023 transitions. [2022-01-18 11:18:00,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:00,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:00,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:00,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 11:18:00,638 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:00,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:00,639 INFO L85 PathProgramCache]: Analyzing trace with hash -687980995, now seen corresponding path program 6 times [2022-01-18 11:18:00,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:00,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506899333] [2022-01-18 11:18:00,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:00,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:00,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:00,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:00,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506899333] [2022-01-18 11:18:00,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506899333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:00,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:00,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:00,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169939465] [2022-01-18 11:18:00,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:00,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:00,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:00,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:00,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:00,717 INFO L87 Difference]: Start difference. First operand 5351 states and 14023 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:00,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:00,887 INFO L93 Difference]: Finished difference Result 5826 states and 15220 transitions. [2022-01-18 11:18:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:18:00,887 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:00,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:00,893 INFO L225 Difference]: With dead ends: 5826 [2022-01-18 11:18:00,893 INFO L226 Difference]: Without dead ends: 5563 [2022-01-18 11:18:00,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:18:00,894 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 83 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:00,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1556 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:18:00,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2022-01-18 11:18:00,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5339. [2022-01-18 11:18:00,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6223304608467592) internal successors, (13998), 5338 states have internal predecessors, (13998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13998 transitions. [2022-01-18 11:18:00,950 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13998 transitions. Word has length 91 [2022-01-18 11:18:00,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:00,950 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13998 transitions. [2022-01-18 11:18:00,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:00,950 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13998 transitions. [2022-01-18 11:18:00,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:00,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:00,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:00,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 11:18:00,954 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:00,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:00,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1823646655, now seen corresponding path program 7 times [2022-01-18 11:18:00,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:00,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123246234] [2022-01-18 11:18:00,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:00,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:01,021 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 11:18:01,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:01,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123246234] [2022-01-18 11:18:01,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123246234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:01,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:01,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:01,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341484416] [2022-01-18 11:18:01,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:01,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:01,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:01,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:01,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:01,022 INFO L87 Difference]: Start difference. First operand 5339 states and 13998 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:01,231 INFO L93 Difference]: Finished difference Result 5957 states and 15474 transitions. [2022-01-18 11:18:01,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:18:01,231 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:01,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:01,238 INFO L225 Difference]: With dead ends: 5957 [2022-01-18 11:18:01,238 INFO L226 Difference]: Without dead ends: 5537 [2022-01-18 11:18:01,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:18:01,238 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 241 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:01,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 1240 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:18:01,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5537 states. [2022-01-18 11:18:01,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5537 to 5204. [2022-01-18 11:18:01,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5204 states, 5203 states have (on average 2.6263694022679225) internal successors, (13665), 5203 states have internal predecessors, (13665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 13665 transitions. [2022-01-18 11:18:01,299 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 13665 transitions. Word has length 91 [2022-01-18 11:18:01,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:01,299 INFO L470 AbstractCegarLoop]: Abstraction has 5204 states and 13665 transitions. [2022-01-18 11:18:01,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 13665 transitions. [2022-01-18 11:18:01,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:01,303 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:01,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:01,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 11:18:01,303 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:01,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:01,304 INFO L85 PathProgramCache]: Analyzing trace with hash 975520439, now seen corresponding path program 8 times [2022-01-18 11:18:01,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:01,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950552422] [2022-01-18 11:18:01,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:01,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:01,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:01,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950552422] [2022-01-18 11:18:01,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950552422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:01,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:01,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:01,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989973942] [2022-01-18 11:18:01,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:01,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:01,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:01,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:01,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:01,368 INFO L87 Difference]: Start difference. First operand 5204 states and 13665 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:01,571 INFO L93 Difference]: Finished difference Result 5758 states and 15052 transitions. [2022-01-18 11:18:01,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:18:01,572 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:01,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:01,578 INFO L225 Difference]: With dead ends: 5758 [2022-01-18 11:18:01,578 INFO L226 Difference]: Without dead ends: 5473 [2022-01-18 11:18:01,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:18:01,578 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 149 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:01,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1650 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:18:01,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2022-01-18 11:18:01,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 5208. [2022-01-18 11:18:01,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 5207 states have (on average 2.6256961782216246) internal successors, (13672), 5207 states have internal predecessors, (13672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 13672 transitions. [2022-01-18 11:18:01,637 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 13672 transitions. Word has length 91 [2022-01-18 11:18:01,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:01,638 INFO L470 AbstractCegarLoop]: Abstraction has 5208 states and 13672 transitions. [2022-01-18 11:18:01,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 13672 transitions. [2022-01-18 11:18:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:01,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:01,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:01,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 11:18:01,643 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:01,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1592916611, now seen corresponding path program 9 times [2022-01-18 11:18:01,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:01,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392116262] [2022-01-18 11:18:01,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:01,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:01,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:01,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:01,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392116262] [2022-01-18 11:18:01,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392116262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:01,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:01,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:01,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131994334] [2022-01-18 11:18:01,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:01,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:01,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:01,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:01,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:01,716 INFO L87 Difference]: Start difference. First operand 5208 states and 13672 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:01,877 INFO L93 Difference]: Finished difference Result 5669 states and 14822 transitions. [2022-01-18 11:18:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:18:01,878 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:01,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:01,885 INFO L225 Difference]: With dead ends: 5669 [2022-01-18 11:18:01,885 INFO L226 Difference]: Without dead ends: 5415 [2022-01-18 11:18:01,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:18:01,885 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 102 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:01,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1483 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:18:01,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5415 states. [2022-01-18 11:18:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5415 to 5212. [2022-01-18 11:18:01,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5212 states, 5211 states have (on average 2.625023987718288) internal successors, (13679), 5211 states have internal predecessors, (13679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 13679 transitions. [2022-01-18 11:18:01,951 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 13679 transitions. Word has length 91 [2022-01-18 11:18:01,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:01,951 INFO L470 AbstractCegarLoop]: Abstraction has 5212 states and 13679 transitions. [2022-01-18 11:18:01,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:01,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 13679 transitions. [2022-01-18 11:18:01,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:01,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:01,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:01,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 11:18:01,955 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:01,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash -575931861, now seen corresponding path program 10 times [2022-01-18 11:18:01,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:01,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660740824] [2022-01-18 11:18:01,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:01,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:02,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:02,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:02,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660740824] [2022-01-18 11:18:02,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660740824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:02,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:02,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:02,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928341978] [2022-01-18 11:18:02,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:02,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:02,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:02,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:02,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:02,029 INFO L87 Difference]: Start difference. First operand 5212 states and 13679 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:02,193 INFO L93 Difference]: Finished difference Result 5623 states and 14700 transitions. [2022-01-18 11:18:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:18:02,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:02,200 INFO L225 Difference]: With dead ends: 5623 [2022-01-18 11:18:02,200 INFO L226 Difference]: Without dead ends: 5328 [2022-01-18 11:18:02,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:18:02,200 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 88 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:02,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 1283 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:18:02,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2022-01-18 11:18:02,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5168. [2022-01-18 11:18:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 2.6280239984517126) internal successors, (13579), 5167 states have internal predecessors, (13579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 13579 transitions. [2022-01-18 11:18:02,259 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 13579 transitions. Word has length 91 [2022-01-18 11:18:02,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:02,260 INFO L470 AbstractCegarLoop]: Abstraction has 5168 states and 13579 transitions. [2022-01-18 11:18:02,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:02,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 13579 transitions. [2022-01-18 11:18:02,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:02,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:02,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:02,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 11:18:02,277 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:02,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:02,277 INFO L85 PathProgramCache]: Analyzing trace with hash -886476235, now seen corresponding path program 11 times [2022-01-18 11:18:02,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:02,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575432999] [2022-01-18 11:18:02,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:02,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:02,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:02,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:02,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575432999] [2022-01-18 11:18:02,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575432999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:02,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:02,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:02,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816153572] [2022-01-18 11:18:02,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:02,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:02,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:02,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:02,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:02,352 INFO L87 Difference]: Start difference. First operand 5168 states and 13579 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:02,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:02,549 INFO L93 Difference]: Finished difference Result 5716 states and 14958 transitions. [2022-01-18 11:18:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:18:02,549 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:02,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:02,555 INFO L225 Difference]: With dead ends: 5716 [2022-01-18 11:18:02,555 INFO L226 Difference]: Without dead ends: 5437 [2022-01-18 11:18:02,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:02,556 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 147 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:02,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 1076 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:18:02,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-18 11:18:02,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5172. [2022-01-18 11:18:02,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 5171 states have (on average 2.6273448075807386) internal successors, (13586), 5171 states have internal predecessors, (13586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 13586 transitions. [2022-01-18 11:18:02,611 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 13586 transitions. Word has length 91 [2022-01-18 11:18:02,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:02,612 INFO L470 AbstractCegarLoop]: Abstraction has 5172 states and 13586 transitions. [2022-01-18 11:18:02,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:02,612 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 13586 transitions. [2022-01-18 11:18:02,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:02,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:02,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:02,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 11:18:02,616 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:02,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1178182263, now seen corresponding path program 12 times [2022-01-18 11:18:02,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:02,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146954149] [2022-01-18 11:18:02,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:02,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:02,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:02,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:02,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146954149] [2022-01-18 11:18:02,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146954149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:02,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:02,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:02,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059426191] [2022-01-18 11:18:02,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:02,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:02,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:02,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:02,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:02,688 INFO L87 Difference]: Start difference. First operand 5172 states and 13586 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:02,838 INFO L93 Difference]: Finished difference Result 5586 states and 14608 transitions. [2022-01-18 11:18:02,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:18:02,838 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:02,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:02,844 INFO L225 Difference]: With dead ends: 5586 [2022-01-18 11:18:02,844 INFO L226 Difference]: Without dead ends: 5332 [2022-01-18 11:18:02,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:18:02,845 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 109 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:02,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 1324 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:18:02,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5332 states. [2022-01-18 11:18:02,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5332 to 5176. [2022-01-18 11:18:02,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 2.6266666666666665) internal successors, (13593), 5175 states have internal predecessors, (13593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:02,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 13593 transitions. [2022-01-18 11:18:02,900 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 13593 transitions. Word has length 91 [2022-01-18 11:18:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:02,900 INFO L470 AbstractCegarLoop]: Abstraction has 5176 states and 13593 transitions. [2022-01-18 11:18:02,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:02,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 13593 transitions. [2022-01-18 11:18:02,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:02,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:02,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:02,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 11:18:02,905 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:02,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:02,905 INFO L85 PathProgramCache]: Analyzing trace with hash 947936561, now seen corresponding path program 13 times [2022-01-18 11:18:02,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:02,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652986902] [2022-01-18 11:18:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:02,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:02,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:02,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:02,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652986902] [2022-01-18 11:18:02,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652986902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:02,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:02,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:02,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621531266] [2022-01-18 11:18:02,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:02,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:02,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:02,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:02,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:02,976 INFO L87 Difference]: Start difference. First operand 5176 states and 13593 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:03,118 INFO L93 Difference]: Finished difference Result 5564 states and 14552 transitions. [2022-01-18 11:18:03,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:18:03,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:03,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:03,124 INFO L225 Difference]: With dead ends: 5564 [2022-01-18 11:18:03,124 INFO L226 Difference]: Without dead ends: 5305 [2022-01-18 11:18:03,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:18:03,125 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 95 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:03,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 1370 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:18:03,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5305 states. [2022-01-18 11:18:03,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5305 to 5168. [2022-01-18 11:18:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 2.6272498548480745) internal successors, (13575), 5167 states have internal predecessors, (13575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 13575 transitions. [2022-01-18 11:18:03,178 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 13575 transitions. Word has length 91 [2022-01-18 11:18:03,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:03,178 INFO L470 AbstractCegarLoop]: Abstraction has 5168 states and 13575 transitions. [2022-01-18 11:18:03,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 13575 transitions. [2022-01-18 11:18:03,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:03,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:03,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:03,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 11:18:03,183 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:03,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:03,183 INFO L85 PathProgramCache]: Analyzing trace with hash 19479749, now seen corresponding path program 14 times [2022-01-18 11:18:03,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:03,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251739747] [2022-01-18 11:18:03,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:03,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:03,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:03,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:03,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251739747] [2022-01-18 11:18:03,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251739747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:03,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:03,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:03,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146782877] [2022-01-18 11:18:03,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:03,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:03,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:03,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:03,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:03,246 INFO L87 Difference]: Start difference. First operand 5168 states and 13575 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:03,494 INFO L93 Difference]: Finished difference Result 5780 states and 15039 transitions. [2022-01-18 11:18:03,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:18:03,494 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:03,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:03,505 INFO L225 Difference]: With dead ends: 5780 [2022-01-18 11:18:03,505 INFO L226 Difference]: Without dead ends: 5405 [2022-01-18 11:18:03,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:18:03,506 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 230 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:03,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1106 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:18:03,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5405 states. [2022-01-18 11:18:03,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 5072. [2022-01-18 11:18:03,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 5071 states have (on average 2.625714849142181) internal successors, (13315), 5071 states have internal predecessors, (13315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 13315 transitions. [2022-01-18 11:18:03,579 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 13315 transitions. Word has length 91 [2022-01-18 11:18:03,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:03,579 INFO L470 AbstractCegarLoop]: Abstraction has 5072 states and 13315 transitions. [2022-01-18 11:18:03,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 13315 transitions. [2022-01-18 11:18:03,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:03,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:03,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:03,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 11:18:03,584 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:03,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:03,584 INFO L85 PathProgramCache]: Analyzing trace with hash -129972745, now seen corresponding path program 15 times [2022-01-18 11:18:03,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:03,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002628996] [2022-01-18 11:18:03,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:03,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:03,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:03,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:03,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002628996] [2022-01-18 11:18:03,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002628996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:03,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:03,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:03,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537818357] [2022-01-18 11:18:03,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:03,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:03,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:03,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:03,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:03,660 INFO L87 Difference]: Start difference. First operand 5072 states and 13315 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:03,866 INFO L93 Difference]: Finished difference Result 5540 states and 14474 transitions. [2022-01-18 11:18:03,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:18:03,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:03,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:03,874 INFO L225 Difference]: With dead ends: 5540 [2022-01-18 11:18:03,874 INFO L226 Difference]: Without dead ends: 5261 [2022-01-18 11:18:03,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:18:03,876 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 134 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:03,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 1297 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:18:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2022-01-18 11:18:03,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5076. [2022-01-18 11:18:03,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 5075 states have (on average 2.625024630541872) internal successors, (13322), 5075 states have internal predecessors, (13322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 13322 transitions. [2022-01-18 11:18:03,941 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 13322 transitions. Word has length 91 [2022-01-18 11:18:03,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:03,941 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 13322 transitions. [2022-01-18 11:18:03,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:03,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 13322 transitions. [2022-01-18 11:18:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:03,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:03,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:03,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 11:18:03,946 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:03,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:03,946 INFO L85 PathProgramCache]: Analyzing trace with hash -421678773, now seen corresponding path program 16 times [2022-01-18 11:18:03,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:03,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543814873] [2022-01-18 11:18:03,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:03,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:04,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:04,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:04,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543814873] [2022-01-18 11:18:04,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543814873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:04,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:04,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:04,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200595802] [2022-01-18 11:18:04,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:04,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:04,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:04,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:04,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:04,028 INFO L87 Difference]: Start difference. First operand 5076 states and 13322 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:04,169 INFO L93 Difference]: Finished difference Result 5474 states and 14300 transitions. [2022-01-18 11:18:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:18:04,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:04,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:04,178 INFO L225 Difference]: With dead ends: 5474 [2022-01-18 11:18:04,179 INFO L226 Difference]: Without dead ends: 5220 [2022-01-18 11:18:04,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:18:04,180 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 108 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:04,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 1305 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:18:04,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5220 states. [2022-01-18 11:18:04,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5220 to 5080. [2022-01-18 11:18:04,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 5079 states have (on average 2.624335499113999) internal successors, (13329), 5079 states have internal predecessors, (13329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 13329 transitions. [2022-01-18 11:18:04,242 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 13329 transitions. Word has length 91 [2022-01-18 11:18:04,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:04,242 INFO L470 AbstractCegarLoop]: Abstraction has 5080 states and 13329 transitions. [2022-01-18 11:18:04,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 13329 transitions. [2022-01-18 11:18:04,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:04,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:04,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:04,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 11:18:04,247 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:04,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:04,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1704440051, now seen corresponding path program 17 times [2022-01-18 11:18:04,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:04,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413980712] [2022-01-18 11:18:04,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:04,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:04,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:04,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413980712] [2022-01-18 11:18:04,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413980712] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:04,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:04,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:04,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016892280] [2022-01-18 11:18:04,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:04,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:04,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:04,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:04,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:04,323 INFO L87 Difference]: Start difference. First operand 5080 states and 13329 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:04,460 INFO L93 Difference]: Finished difference Result 5436 states and 14200 transitions. [2022-01-18 11:18:04,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:18:04,460 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:04,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:04,467 INFO L225 Difference]: With dead ends: 5436 [2022-01-18 11:18:04,467 INFO L226 Difference]: Without dead ends: 5177 [2022-01-18 11:18:04,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:18:04,468 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 92 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:04,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 1133 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:18:04,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2022-01-18 11:18:04,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 5072. [2022-01-18 11:18:04,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 5071 states have (on average 2.6249260500887397) internal successors, (13311), 5071 states have internal predecessors, (13311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 13311 transitions. [2022-01-18 11:18:04,537 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 13311 transitions. Word has length 91 [2022-01-18 11:18:04,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:04,537 INFO L470 AbstractCegarLoop]: Abstraction has 5072 states and 13311 transitions. [2022-01-18 11:18:04,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 13311 transitions. [2022-01-18 11:18:04,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:04,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:04,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:04,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 11:18:04,542 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:04,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:04,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1427509847, now seen corresponding path program 18 times [2022-01-18 11:18:04,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:04,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550679750] [2022-01-18 11:18:04,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:04,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:04,612 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 11:18:04,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:04,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550679750] [2022-01-18 11:18:04,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550679750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:04,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:04,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:04,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871058467] [2022-01-18 11:18:04,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:04,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:04,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:04,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:04,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:04,613 INFO L87 Difference]: Start difference. First operand 5072 states and 13311 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:04,779 INFO L93 Difference]: Finished difference Result 5431 states and 14188 transitions. [2022-01-18 11:18:04,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:18:04,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:04,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:04,786 INFO L225 Difference]: With dead ends: 5431 [2022-01-18 11:18:04,786 INFO L226 Difference]: Without dead ends: 5146 [2022-01-18 11:18:04,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:18:04,787 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 119 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:04,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1127 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:18:04,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5146 states. [2022-01-18 11:18:04,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5146 to 5041. [2022-01-18 11:18:04,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5041 states, 5040 states have (on average 2.6246031746031746) internal successors, (13228), 5040 states have internal predecessors, (13228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5041 states to 5041 states and 13228 transitions. [2022-01-18 11:18:04,846 INFO L78 Accepts]: Start accepts. Automaton has 5041 states and 13228 transitions. Word has length 91 [2022-01-18 11:18:04,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:04,847 INFO L470 AbstractCegarLoop]: Abstraction has 5041 states and 13228 transitions. [2022-01-18 11:18:04,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5041 states and 13228 transitions. [2022-01-18 11:18:04,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:04,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:04,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:04,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 11:18:04,852 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:04,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:04,852 INFO L85 PathProgramCache]: Analyzing trace with hash 2044906019, now seen corresponding path program 19 times [2022-01-18 11:18:04,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:04,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348111639] [2022-01-18 11:18:04,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:04,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:04,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:04,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:04,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348111639] [2022-01-18 11:18:04,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348111639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:04,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:04,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:04,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158142140] [2022-01-18 11:18:04,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:04,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:04,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:04,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:04,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:04,919 INFO L87 Difference]: Start difference. First operand 5041 states and 13228 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:05,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:05,086 INFO L93 Difference]: Finished difference Result 5369 states and 14026 transitions. [2022-01-18 11:18:05,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:18:05,087 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:05,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:05,092 INFO L225 Difference]: With dead ends: 5369 [2022-01-18 11:18:05,092 INFO L226 Difference]: Without dead ends: 5115 [2022-01-18 11:18:05,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:18:05,093 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 115 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:05,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 1115 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:18:05,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2022-01-18 11:18:05,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 5045. [2022-01-18 11:18:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5045 states, 5044 states have (on average 2.62390959555908) internal successors, (13235), 5044 states have internal predecessors, (13235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:05,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 13235 transitions. [2022-01-18 11:18:05,148 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 13235 transitions. Word has length 91 [2022-01-18 11:18:05,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:05,148 INFO L470 AbstractCegarLoop]: Abstraction has 5045 states and 13235 transitions. [2022-01-18 11:18:05,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:05,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 13235 transitions. [2022-01-18 11:18:05,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:18:05,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:05,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:05,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 11:18:05,152 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:05,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:05,153 INFO L85 PathProgramCache]: Analyzing trace with hash -123942453, now seen corresponding path program 20 times [2022-01-18 11:18:05,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:05,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660666113] [2022-01-18 11:18:05,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:05,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:05,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:05,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660666113] [2022-01-18 11:18:05,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660666113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:05,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:05,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:18:05,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357686832] [2022-01-18 11:18:05,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:05,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:18:05,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:05,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:18:05,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:18:05,221 INFO L87 Difference]: Start difference. First operand 5045 states and 13235 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:05,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:05,359 INFO L93 Difference]: Finished difference Result 5296 states and 13836 transitions. [2022-01-18 11:18:05,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:18:05,360 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:18:05,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:05,366 INFO L225 Difference]: With dead ends: 5296 [2022-01-18 11:18:05,367 INFO L226 Difference]: Without dead ends: 4987 [2022-01-18 11:18:05,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:18:05,367 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 77 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:05,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 1197 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:18:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2022-01-18 11:18:05,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4987. [2022-01-18 11:18:05,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4986 states have (on average 2.628158844765343) internal successors, (13104), 4986 states have internal predecessors, (13104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:05,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 13104 transitions. [2022-01-18 11:18:05,425 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 13104 transitions. Word has length 91 [2022-01-18 11:18:05,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:05,425 INFO L470 AbstractCegarLoop]: Abstraction has 4987 states and 13104 transitions. [2022-01-18 11:18:05,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:05,426 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 13104 transitions. [2022-01-18 11:18:05,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:05,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:05,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:05,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 11:18:05,431 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:05,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:05,431 INFO L85 PathProgramCache]: Analyzing trace with hash 126758231, now seen corresponding path program 1 times [2022-01-18 11:18:05,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:05,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615256443] [2022-01-18 11:18:05,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:05,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:05,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:05,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615256443] [2022-01-18 11:18:05,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615256443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:05,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:05,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:05,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333559834] [2022-01-18 11:18:05,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:05,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:05,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:05,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:05,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:05,882 INFO L87 Difference]: Start difference. First operand 4987 states and 13104 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:08,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:08,570 INFO L93 Difference]: Finished difference Result 9961 states and 26285 transitions. [2022-01-18 11:18:08,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:18:08,570 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:08,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:08,583 INFO L225 Difference]: With dead ends: 9961 [2022-01-18 11:18:08,583 INFO L226 Difference]: Without dead ends: 9586 [2022-01-18 11:18:08,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1150, Invalid=3680, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 11:18:08,584 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 932 mSDsluCounter, 7225 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 7512 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:08,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 7512 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:18:08,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9586 states. [2022-01-18 11:18:08,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9586 to 5479. [2022-01-18 11:18:08,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6369112814895947) internal successors, (14445), 5478 states have internal predecessors, (14445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:08,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14445 transitions. [2022-01-18 11:18:08,661 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14445 transitions. Word has length 135 [2022-01-18 11:18:08,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:08,661 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14445 transitions. [2022-01-18 11:18:08,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:08,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14445 transitions. [2022-01-18 11:18:08,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:08,667 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:08,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:08,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 11:18:08,667 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:08,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:08,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1274913931, now seen corresponding path program 2 times [2022-01-18 11:18:08,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:08,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56038926] [2022-01-18 11:18:08,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:08,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:09,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:09,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56038926] [2022-01-18 11:18:09,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56038926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:09,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:09,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:09,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721828148] [2022-01-18 11:18:09,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:09,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:09,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:09,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:09,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:09,052 INFO L87 Difference]: Start difference. First operand 5479 states and 14445 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:11,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:11,566 INFO L93 Difference]: Finished difference Result 10009 states and 26401 transitions. [2022-01-18 11:18:11,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:18:11,566 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:11,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:11,578 INFO L225 Difference]: With dead ends: 10009 [2022-01-18 11:18:11,578 INFO L226 Difference]: Without dead ends: 9718 [2022-01-18 11:18:11,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1014, Invalid=3408, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:18:11,579 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 931 mSDsluCounter, 6821 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 7114 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:11,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 7114 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:11,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9718 states. [2022-01-18 11:18:11,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9718 to 5483. [2022-01-18 11:18:11,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.636264137176213) internal successors, (14452), 5482 states have internal predecessors, (14452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14452 transitions. [2022-01-18 11:18:11,656 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14452 transitions. Word has length 135 [2022-01-18 11:18:11,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:11,656 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14452 transitions. [2022-01-18 11:18:11,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14452 transitions. [2022-01-18 11:18:11,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:11,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:11,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:11,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 11:18:11,662 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:11,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1566619959, now seen corresponding path program 3 times [2022-01-18 11:18:11,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:11,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255816187] [2022-01-18 11:18:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:11,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:12,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:12,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:12,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255816187] [2022-01-18 11:18:12,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255816187] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:12,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:12,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:12,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717241016] [2022-01-18 11:18:12,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:12,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:12,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:12,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:12,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:12,095 INFO L87 Difference]: Start difference. First operand 5483 states and 14452 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:14,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:14,060 INFO L93 Difference]: Finished difference Result 9895 states and 26095 transitions. [2022-01-18 11:18:14,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:18:14,061 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:14,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:14,074 INFO L225 Difference]: With dead ends: 9895 [2022-01-18 11:18:14,074 INFO L226 Difference]: Without dead ends: 9629 [2022-01-18 11:18:14,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=751, Invalid=2671, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:18:14,075 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 836 mSDsluCounter, 6484 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 6765 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:14,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 6765 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:14,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9629 states. [2022-01-18 11:18:14,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9629 to 5487. [2022-01-18 11:18:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.635617936565804) internal successors, (14459), 5486 states have internal predecessors, (14459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:14,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14459 transitions. [2022-01-18 11:18:14,154 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14459 transitions. Word has length 135 [2022-01-18 11:18:14,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:14,154 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14459 transitions. [2022-01-18 11:18:14,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:14,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14459 transitions. [2022-01-18 11:18:14,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:14,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:14,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:14,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 11:18:14,159 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:14,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:14,160 INFO L85 PathProgramCache]: Analyzing trace with hash 559498865, now seen corresponding path program 4 times [2022-01-18 11:18:14,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:14,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114303227] [2022-01-18 11:18:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:14,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:14,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:14,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114303227] [2022-01-18 11:18:14,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114303227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:14,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:14,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:14,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202445787] [2022-01-18 11:18:14,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:14,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:14,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:14,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:14,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:14,551 INFO L87 Difference]: Start difference. First operand 5487 states and 14459 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:16,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:16,740 INFO L93 Difference]: Finished difference Result 9857 states and 25995 transitions. [2022-01-18 11:18:16,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:18:16,740 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:16,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:16,753 INFO L225 Difference]: With dead ends: 9857 [2022-01-18 11:18:16,753 INFO L226 Difference]: Without dead ends: 9574 [2022-01-18 11:18:16,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=814, Invalid=2846, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:18:16,754 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 815 mSDsluCounter, 7183 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 7471 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:16,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 7471 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:18:16,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9574 states. [2022-01-18 11:18:16,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9574 to 5467. [2022-01-18 11:18:16,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.6366630076838637) internal successors, (14412), 5466 states have internal predecessors, (14412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:16,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14412 transitions. [2022-01-18 11:18:16,839 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14412 transitions. Word has length 135 [2022-01-18 11:18:16,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:16,839 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14412 transitions. [2022-01-18 11:18:16,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:16,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14412 transitions. [2022-01-18 11:18:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:16,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:16,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:16,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 11:18:16,844 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:16,844 INFO L85 PathProgramCache]: Analyzing trace with hash -169468329, now seen corresponding path program 5 times [2022-01-18 11:18:16,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:16,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837265304] [2022-01-18 11:18:16,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:16,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:17,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:17,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837265304] [2022-01-18 11:18:17,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837265304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:17,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:17,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:17,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968022524] [2022-01-18 11:18:17,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:17,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:17,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:17,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:17,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:17,230 INFO L87 Difference]: Start difference. First operand 5467 states and 14412 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:19,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:19,532 INFO L93 Difference]: Finished difference Result 10017 states and 26423 transitions. [2022-01-18 11:18:19,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:18:19,533 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:19,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:19,546 INFO L225 Difference]: With dead ends: 10017 [2022-01-18 11:18:19,546 INFO L226 Difference]: Without dead ends: 9726 [2022-01-18 11:18:19,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=992, Invalid=3298, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:18:19,547 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 917 mSDsluCounter, 6443 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 6738 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:19,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 6738 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:19,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9726 states. [2022-01-18 11:18:19,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9726 to 5475. [2022-01-18 11:18:19,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6360979174278407) internal successors, (14430), 5474 states have internal predecessors, (14430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:19,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14430 transitions. [2022-01-18 11:18:19,624 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14430 transitions. Word has length 135 [2022-01-18 11:18:19,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:19,624 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14430 transitions. [2022-01-18 11:18:19,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:19,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14430 transitions. [2022-01-18 11:18:19,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:19,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:19,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:19,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 11:18:19,630 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:19,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:19,630 INFO L85 PathProgramCache]: Analyzing trace with hash -461174357, now seen corresponding path program 6 times [2022-01-18 11:18:19,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:19,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135377965] [2022-01-18 11:18:19,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:19,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:20,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:20,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:20,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135377965] [2022-01-18 11:18:20,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135377965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:20,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:20,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:20,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758373150] [2022-01-18 11:18:20,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:20,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:20,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:20,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:20,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:20,045 INFO L87 Difference]: Start difference. First operand 5475 states and 14430 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:22,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:22,075 INFO L93 Difference]: Finished difference Result 9967 states and 26293 transitions. [2022-01-18 11:18:22,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:18:22,075 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:22,088 INFO L225 Difference]: With dead ends: 9967 [2022-01-18 11:18:22,088 INFO L226 Difference]: Without dead ends: 9701 [2022-01-18 11:18:22,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=777, Invalid=2763, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:18:22,089 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 853 mSDsluCounter, 6869 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:22,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [853 Valid, 7145 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:22,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9701 states. [2022-01-18 11:18:22,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9701 to 5479. [2022-01-18 11:18:22,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.635450894487039) internal successors, (14437), 5478 states have internal predecessors, (14437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:22,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14437 transitions. [2022-01-18 11:18:22,168 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14437 transitions. Word has length 135 [2022-01-18 11:18:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:22,168 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14437 transitions. [2022-01-18 11:18:22,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:22,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14437 transitions. [2022-01-18 11:18:22,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:22,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:22,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:22,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 11:18:22,174 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:22,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:22,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1664944467, now seen corresponding path program 7 times [2022-01-18 11:18:22,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:22,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847738441] [2022-01-18 11:18:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:22,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:22,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:22,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847738441] [2022-01-18 11:18:22,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847738441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:22,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:22,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:22,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558681565] [2022-01-18 11:18:22,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:22,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:22,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:22,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:22,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:22,537 INFO L87 Difference]: Start difference. First operand 5479 states and 14437 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:24,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:24,507 INFO L93 Difference]: Finished difference Result 9929 states and 26193 transitions. [2022-01-18 11:18:24,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:18:24,507 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:24,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:24,520 INFO L225 Difference]: With dead ends: 9929 [2022-01-18 11:18:24,520 INFO L226 Difference]: Without dead ends: 9658 [2022-01-18 11:18:24,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:18:24,521 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 829 mSDsluCounter, 6448 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 6743 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:24,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [829 Valid, 6743 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:24,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9658 states. [2022-01-18 11:18:24,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9658 to 5471. [2022-01-18 11:18:24,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 2.636014625228519) internal successors, (14419), 5470 states have internal predecessors, (14419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 14419 transitions. [2022-01-18 11:18:24,597 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 14419 transitions. Word has length 135 [2022-01-18 11:18:24,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:24,597 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 14419 transitions. [2022-01-18 11:18:24,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 14419 transitions. [2022-01-18 11:18:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:24,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:24,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:24,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 11:18:24,602 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:24,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:24,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2037724633, now seen corresponding path program 8 times [2022-01-18 11:18:24,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:24,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601044031] [2022-01-18 11:18:24,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:24,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:25,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:25,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:25,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601044031] [2022-01-18 11:18:25,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601044031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:25,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:25,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:25,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133910586] [2022-01-18 11:18:25,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:25,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:25,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:25,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:25,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:25,039 INFO L87 Difference]: Start difference. First operand 5471 states and 14419 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:27,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:27,344 INFO L93 Difference]: Finished difference Result 10019 states and 26411 transitions. [2022-01-18 11:18:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:18:27,344 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:27,357 INFO L225 Difference]: With dead ends: 10019 [2022-01-18 11:18:27,357 INFO L226 Difference]: Without dead ends: 9722 [2022-01-18 11:18:27,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=932, Invalid=3228, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:18:27,358 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 909 mSDsluCounter, 6950 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 7216 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:27,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 7216 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:27,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9722 states. [2022-01-18 11:18:27,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9722 to 5475. [2022-01-18 11:18:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6353671903544025) internal successors, (14426), 5474 states have internal predecessors, (14426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14426 transitions. [2022-01-18 11:18:27,443 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14426 transitions. Word has length 135 [2022-01-18 11:18:27,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:27,443 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14426 transitions. [2022-01-18 11:18:27,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:27,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14426 transitions. [2022-01-18 11:18:27,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:27,448 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:27,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:27,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 11:18:27,449 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:27,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:27,449 INFO L85 PathProgramCache]: Analyzing trace with hash -378853147, now seen corresponding path program 9 times [2022-01-18 11:18:27,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:27,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910045956] [2022-01-18 11:18:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:27,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:27,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:27,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:27,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910045956] [2022-01-18 11:18:27,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910045956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:27,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:27,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:27,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763842693] [2022-01-18 11:18:27,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:27,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:27,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:27,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:27,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:27,815 INFO L87 Difference]: Start difference. First operand 5475 states and 14426 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:29,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:29,781 INFO L93 Difference]: Finished difference Result 9919 states and 26157 transitions. [2022-01-18 11:18:29,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:18:29,782 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:29,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:29,794 INFO L225 Difference]: With dead ends: 9919 [2022-01-18 11:18:29,794 INFO L226 Difference]: Without dead ends: 9653 [2022-01-18 11:18:29,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=809, Invalid=2851, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:18:29,795 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 840 mSDsluCounter, 6860 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 7136 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:29,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [840 Valid, 7136 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:29,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9653 states. [2022-01-18 11:18:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9653 to 5479. [2022-01-18 11:18:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.634720700985761) internal successors, (14433), 5478 states have internal predecessors, (14433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:29,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14433 transitions. [2022-01-18 11:18:29,901 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14433 transitions. Word has length 135 [2022-01-18 11:18:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:29,901 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14433 transitions. [2022-01-18 11:18:29,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:29,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14433 transitions. [2022-01-18 11:18:29,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:29,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:29,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:29,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 11:18:29,907 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:29,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:29,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1747265677, now seen corresponding path program 10 times [2022-01-18 11:18:29,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:29,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569398794] [2022-01-18 11:18:29,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:29,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:30,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:30,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:30,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569398794] [2022-01-18 11:18:30,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569398794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:30,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:30,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:30,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432350211] [2022-01-18 11:18:30,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:30,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:30,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:30,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:30,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:30,283 INFO L87 Difference]: Start difference. First operand 5479 states and 14433 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:32,323 INFO L93 Difference]: Finished difference Result 9849 states and 25969 transitions. [2022-01-18 11:18:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:18:32,323 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:32,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:32,336 INFO L225 Difference]: With dead ends: 9849 [2022-01-18 11:18:32,336 INFO L226 Difference]: Without dead ends: 9562 [2022-01-18 11:18:32,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=789, Invalid=2751, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:18:32,337 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 824 mSDsluCounter, 7119 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 7402 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:32,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 7402 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:32,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9562 states. [2022-01-18 11:18:32,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9562 to 5455. [2022-01-18 11:18:32,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6364136413641366) internal successors, (14379), 5454 states have internal predecessors, (14379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:32,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14379 transitions. [2022-01-18 11:18:32,417 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14379 transitions. Word has length 135 [2022-01-18 11:18:32,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:32,417 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14379 transitions. [2022-01-18 11:18:32,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:32,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14379 transitions. [2022-01-18 11:18:32,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:32,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:32,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:32,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 11:18:32,422 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:32,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:32,422 INFO L85 PathProgramCache]: Analyzing trace with hash -2085553163, now seen corresponding path program 11 times [2022-01-18 11:18:32,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:32,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271783161] [2022-01-18 11:18:32,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:32,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:32,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:32,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271783161] [2022-01-18 11:18:32,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271783161] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:32,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:32,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:32,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607006388] [2022-01-18 11:18:32,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:32,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:32,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:32,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:32,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:32,759 INFO L87 Difference]: Start difference. First operand 5455 states and 14379 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:34,951 INFO L93 Difference]: Finished difference Result 10065 states and 26555 transitions. [2022-01-18 11:18:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:18:34,951 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:34,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:34,987 INFO L225 Difference]: With dead ends: 10065 [2022-01-18 11:18:34,988 INFO L226 Difference]: Without dead ends: 9774 [2022-01-18 11:18:34,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=969, Invalid=3191, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:18:34,988 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 923 mSDsluCounter, 6069 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:34,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [923 Valid, 6367 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:34,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2022-01-18 11:18:35,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 5475. [2022-01-18 11:18:35,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6360979174278407) internal successors, (14430), 5474 states have internal predecessors, (14430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14430 transitions. [2022-01-18 11:18:35,058 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14430 transitions. Word has length 135 [2022-01-18 11:18:35,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:35,058 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14430 transitions. [2022-01-18 11:18:35,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:35,058 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14430 transitions. [2022-01-18 11:18:35,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:35,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:35,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:35,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 11:18:35,064 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:35,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:35,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1917708105, now seen corresponding path program 12 times [2022-01-18 11:18:35,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:35,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006311138] [2022-01-18 11:18:35,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:35,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:35,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:35,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006311138] [2022-01-18 11:18:35,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006311138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:35,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:35,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:35,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099663516] [2022-01-18 11:18:35,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:35,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:35,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:35,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:35,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:35,473 INFO L87 Difference]: Start difference. First operand 5475 states and 14430 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:37,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:37,496 INFO L93 Difference]: Finished difference Result 10031 states and 26469 transitions. [2022-01-18 11:18:37,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:18:37,497 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:37,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:37,509 INFO L225 Difference]: With dead ends: 10031 [2022-01-18 11:18:37,509 INFO L226 Difference]: Without dead ends: 9765 [2022-01-18 11:18:37,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=772, Invalid=2768, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:18:37,510 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 850 mSDsluCounter, 7227 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 7498 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:37,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 7498 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:37,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2022-01-18 11:18:37,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 5479. [2022-01-18 11:18:37,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.635450894487039) internal successors, (14437), 5478 states have internal predecessors, (14437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:37,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14437 transitions. [2022-01-18 11:18:37,592 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14437 transitions. Word has length 135 [2022-01-18 11:18:37,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:37,592 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14437 transitions. [2022-01-18 11:18:37,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:37,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14437 transitions. [2022-01-18 11:18:37,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:37,597 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:37,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:37,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 11:18:37,597 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:37,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:37,598 INFO L85 PathProgramCache]: Analyzing trace with hash -251140367, now seen corresponding path program 13 times [2022-01-18 11:18:37,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:37,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385067300] [2022-01-18 11:18:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:37,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:37,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:37,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385067300] [2022-01-18 11:18:37,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385067300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:37,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:37,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:37,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659849848] [2022-01-18 11:18:37,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:37,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:37,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:37,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:37,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:37,971 INFO L87 Difference]: Start difference. First operand 5479 states and 14437 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:39,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:39,964 INFO L93 Difference]: Finished difference Result 9993 states and 26369 transitions. [2022-01-18 11:18:39,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:18:39,964 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:39,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:39,975 INFO L225 Difference]: With dead ends: 9993 [2022-01-18 11:18:39,975 INFO L226 Difference]: Without dead ends: 9722 [2022-01-18 11:18:39,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=826, Invalid=2834, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:18:39,975 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 835 mSDsluCounter, 6433 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 6727 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:39,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [835 Valid, 6727 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:39,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9722 states. [2022-01-18 11:18:40,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9722 to 5471. [2022-01-18 11:18:40,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 2.636014625228519) internal successors, (14419), 5470 states have internal predecessors, (14419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:40,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 14419 transitions. [2022-01-18 11:18:40,049 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 14419 transitions. Word has length 135 [2022-01-18 11:18:40,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:40,049 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 14419 transitions. [2022-01-18 11:18:40,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:40,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 14419 transitions. [2022-01-18 11:18:40,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:40,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:40,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:40,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 11:18:40,055 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:40,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:40,055 INFO L85 PathProgramCache]: Analyzing trace with hash 121639799, now seen corresponding path program 14 times [2022-01-18 11:18:40,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:40,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262650031] [2022-01-18 11:18:40,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:40,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:40,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:40,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:40,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262650031] [2022-01-18 11:18:40,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262650031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:40,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:40,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:40,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660487992] [2022-01-18 11:18:40,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:40,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:40,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:40,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:40,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:40,427 INFO L87 Difference]: Start difference. First operand 5471 states and 14419 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:42,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:42,709 INFO L93 Difference]: Finished difference Result 10163 states and 26807 transitions. [2022-01-18 11:18:42,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:18:42,709 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:42,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:42,722 INFO L225 Difference]: With dead ends: 10163 [2022-01-18 11:18:42,722 INFO L226 Difference]: Without dead ends: 9866 [2022-01-18 11:18:42,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=956, Invalid=3334, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:18:42,723 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 920 mSDsluCounter, 6963 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 7231 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:42,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [920 Valid, 7231 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:42,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9866 states. [2022-01-18 11:18:42,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9866 to 5475. [2022-01-18 11:18:42,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6353671903544025) internal successors, (14426), 5474 states have internal predecessors, (14426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:42,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14426 transitions. [2022-01-18 11:18:42,803 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14426 transitions. Word has length 135 [2022-01-18 11:18:42,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:42,803 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14426 transitions. [2022-01-18 11:18:42,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:42,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14426 transitions. [2022-01-18 11:18:42,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:42,809 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:42,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:42,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 11:18:42,809 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:42,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:42,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2000029315, now seen corresponding path program 15 times [2022-01-18 11:18:42,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:42,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645896639] [2022-01-18 11:18:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:42,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:43,189 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 11:18:43,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:43,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645896639] [2022-01-18 11:18:43,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645896639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:43,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:43,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:43,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90309145] [2022-01-18 11:18:43,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:43,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:43,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:43,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:43,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:43,191 INFO L87 Difference]: Start difference. First operand 5475 states and 14426 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:45,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:45,244 INFO L93 Difference]: Finished difference Result 10047 states and 26509 transitions. [2022-01-18 11:18:45,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:18:45,244 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:45,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:45,254 INFO L225 Difference]: With dead ends: 10047 [2022-01-18 11:18:45,254 INFO L226 Difference]: Without dead ends: 9781 [2022-01-18 11:18:45,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=802, Invalid=2858, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:18:45,255 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 872 mSDsluCounter, 6845 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 7124 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:45,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 7124 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:45,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9781 states. [2022-01-18 11:18:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 5479. [2022-01-18 11:18:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.634720700985761) internal successors, (14433), 5478 states have internal predecessors, (14433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:45,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14433 transitions. [2022-01-18 11:18:45,325 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14433 transitions. Word has length 135 [2022-01-18 11:18:45,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:45,325 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14433 transitions. [2022-01-18 11:18:45,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:45,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14433 transitions. [2022-01-18 11:18:45,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:45,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:45,330 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] [2022-01-18 11:18:45,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 11:18:45,330 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:45,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:45,330 INFO L85 PathProgramCache]: Analyzing trace with hash -168819157, now seen corresponding path program 16 times [2022-01-18 11:18:45,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:45,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902090052] [2022-01-18 11:18:45,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:45,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:45,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:45,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:45,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902090052] [2022-01-18 11:18:45,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902090052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:45,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:45,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:45,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62748421] [2022-01-18 11:18:45,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:45,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:45,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:45,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:45,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:45,712 INFO L87 Difference]: Start difference. First operand 5479 states and 14433 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:47,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:47,722 INFO L93 Difference]: Finished difference Result 9993 states and 26365 transitions. [2022-01-18 11:18:47,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:18:47,723 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:47,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:47,735 INFO L225 Difference]: With dead ends: 9993 [2022-01-18 11:18:47,735 INFO L226 Difference]: Without dead ends: 9718 [2022-01-18 11:18:47,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=794, Invalid=2746, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:18:47,736 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 845 mSDsluCounter, 6739 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 7028 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:47,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 7028 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:47,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9718 states. [2022-01-18 11:18:47,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9718 to 5467. [2022-01-18 11:18:47,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.6359312111233075) internal successors, (14408), 5466 states have internal predecessors, (14408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:47,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14408 transitions. [2022-01-18 11:18:47,814 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14408 transitions. Word has length 135 [2022-01-18 11:18:47,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:47,814 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14408 transitions. [2022-01-18 11:18:47,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:47,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14408 transitions. [2022-01-18 11:18:47,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:47,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:47,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:47,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 11:18:47,819 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:47,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:47,819 INFO L85 PathProgramCache]: Analyzing trace with hash -788125209, now seen corresponding path program 17 times [2022-01-18 11:18:47,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:47,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162578072] [2022-01-18 11:18:47,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:47,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:48,194 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 11:18:48,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:48,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162578072] [2022-01-18 11:18:48,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162578072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:48,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:48,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:48,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243076226] [2022-01-18 11:18:48,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:48,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:48,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:48,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:48,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:48,195 INFO L87 Difference]: Start difference. First operand 5467 states and 14408 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:50,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:50,759 INFO L93 Difference]: Finished difference Result 10186 states and 26839 transitions. [2022-01-18 11:18:50,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:18:50,759 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:50,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:50,770 INFO L225 Difference]: With dead ends: 10186 [2022-01-18 11:18:50,770 INFO L226 Difference]: Without dead ends: 9796 [2022-01-18 11:18:50,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1130, Invalid=3840, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 11:18:50,771 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 979 mSDsluCounter, 7070 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 7329 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:50,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 7329 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:50,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9796 states. [2022-01-18 11:18:50,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9796 to 5479. [2022-01-18 11:18:50,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6339905074844836) internal successors, (14429), 5478 states have internal predecessors, (14429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:50,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14429 transitions. [2022-01-18 11:18:50,847 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14429 transitions. Word has length 135 [2022-01-18 11:18:50,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:50,847 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14429 transitions. [2022-01-18 11:18:50,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14429 transitions. [2022-01-18 11:18:50,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:50,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:50,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:50,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 11:18:50,853 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:50,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:50,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1181590245, now seen corresponding path program 18 times [2022-01-18 11:18:50,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:50,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157850177] [2022-01-18 11:18:50,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:50,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:51,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:51,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157850177] [2022-01-18 11:18:51,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157850177] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:51,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:51,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:51,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243422414] [2022-01-18 11:18:51,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:51,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:51,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:51,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:51,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:51,242 INFO L87 Difference]: Start difference. First operand 5479 states and 14429 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:53,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:53,546 INFO L93 Difference]: Finished difference Result 10043 states and 26465 transitions. [2022-01-18 11:18:53,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:18:53,546 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:53,559 INFO L225 Difference]: With dead ends: 10043 [2022-01-18 11:18:53,560 INFO L226 Difference]: Without dead ends: 9746 [2022-01-18 11:18:53,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=980, Invalid=3442, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:18:53,560 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 919 mSDsluCounter, 6984 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 7251 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:53,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [919 Valid, 7251 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:53,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9746 states. [2022-01-18 11:18:53,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9746 to 5483. [2022-01-18 11:18:53,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6333454943451295) internal successors, (14436), 5482 states have internal predecessors, (14436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:53,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14436 transitions. [2022-01-18 11:18:53,640 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14436 transitions. Word has length 135 [2022-01-18 11:18:53,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:53,640 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14436 transitions. [2022-01-18 11:18:53,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:53,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14436 transitions. [2022-01-18 11:18:53,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:53,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:53,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:53,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 11:18:53,645 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:53,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:53,645 INFO L85 PathProgramCache]: Analyzing trace with hash 696799271, now seen corresponding path program 19 times [2022-01-18 11:18:53,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:53,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807290779] [2022-01-18 11:18:53,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:53,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:54,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:54,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:54,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807290779] [2022-01-18 11:18:54,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807290779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:54,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:54,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:54,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374356664] [2022-01-18 11:18:54,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:54,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:54,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:54,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:54,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:54,046 INFO L87 Difference]: Start difference. First operand 5483 states and 14436 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:56,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:56,069 INFO L93 Difference]: Finished difference Result 9943 states and 26211 transitions. [2022-01-18 11:18:56,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:18:56,070 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:56,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:56,081 INFO L225 Difference]: With dead ends: 9943 [2022-01-18 11:18:56,081 INFO L226 Difference]: Without dead ends: 9677 [2022-01-18 11:18:56,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=797, Invalid=2863, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:18:56,082 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 859 mSDsluCounter, 6817 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 7093 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:56,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 7093 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:56,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9677 states. [2022-01-18 11:18:56,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9677 to 5487. [2022-01-18 11:18:56,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.632701421800948) internal successors, (14443), 5486 states have internal predecessors, (14443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:56,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14443 transitions. [2022-01-18 11:18:56,157 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14443 transitions. Word has length 135 [2022-01-18 11:18:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:56,157 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14443 transitions. [2022-01-18 11:18:56,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14443 transitions. [2022-01-18 11:18:56,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:56,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:56,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:56,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 11:18:56,162 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:56,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:56,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1472049201, now seen corresponding path program 20 times [2022-01-18 11:18:56,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:56,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534941298] [2022-01-18 11:18:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:56,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:56,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:56,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534941298] [2022-01-18 11:18:56,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534941298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:56,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:56,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:56,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878026518] [2022-01-18 11:18:56,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:56,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:56,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:56,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:56,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:56,556 INFO L87 Difference]: Start difference. First operand 5487 states and 14443 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:58,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:18:58,514 INFO L93 Difference]: Finished difference Result 9857 states and 25979 transitions. [2022-01-18 11:18:58,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:18:58,514 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:18:58,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:18:58,527 INFO L225 Difference]: With dead ends: 9857 [2022-01-18 11:18:58,527 INFO L226 Difference]: Without dead ends: 9526 [2022-01-18 11:18:58,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=766, Invalid=2656, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:18:58,528 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 820 mSDsluCounter, 7084 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 7364 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:18:58,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [820 Valid, 7364 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:18:58,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9526 states. [2022-01-18 11:18:58,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9526 to 5419. [2022-01-18 11:18:58,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 2.635658914728682) internal successors, (14280), 5418 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:58,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 14280 transitions. [2022-01-18 11:18:58,612 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 14280 transitions. Word has length 135 [2022-01-18 11:18:58,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:18:58,613 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 14280 transitions. [2022-01-18 11:18:58,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:18:58,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 14280 transitions. [2022-01-18 11:18:58,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:18:58,618 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:18:58,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:18:58,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 11:18:58,618 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:18:58,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:18:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1972969897, now seen corresponding path program 21 times [2022-01-18 11:18:58,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:18:58,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289932793] [2022-01-18 11:18:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:18:58,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:18:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:18:59,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:18:59,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:18:59,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289932793] [2022-01-18 11:18:59,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289932793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:18:59,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:18:59,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:18:59,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333676386] [2022-01-18 11:18:59,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:18:59,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:18:59,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:18:59,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:18:59,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:18:59,019 INFO L87 Difference]: Start difference. First operand 5419 states and 14280 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:01,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:01,288 INFO L93 Difference]: Finished difference Result 10049 states and 26511 transitions. [2022-01-18 11:19:01,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:19:01,288 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:01,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:01,299 INFO L225 Difference]: With dead ends: 10049 [2022-01-18 11:19:01,299 INFO L226 Difference]: Without dead ends: 9758 [2022-01-18 11:19:01,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=945, Invalid=3087, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:19:01,300 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 905 mSDsluCounter, 7152 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 7435 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:01,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 7435 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9758 states. [2022-01-18 11:19:01,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9758 to 5443. [2022-01-18 11:19:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.635428151414921) internal successors, (14342), 5442 states have internal predecessors, (14342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:01,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14342 transitions. [2022-01-18 11:19:01,373 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14342 transitions. Word has length 135 [2022-01-18 11:19:01,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:01,373 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14342 transitions. [2022-01-18 11:19:01,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:01,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14342 transitions. [2022-01-18 11:19:01,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:01,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:01,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:01,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 11:19:01,378 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:01,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:01,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2030291371, now seen corresponding path program 22 times [2022-01-18 11:19:01,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:01,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969132831] [2022-01-18 11:19:01,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:01,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:01,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:01,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:01,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969132831] [2022-01-18 11:19:01,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969132831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:01,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:01,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:01,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486049579] [2022-01-18 11:19:01,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:01,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:01,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:01,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:01,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:01,740 INFO L87 Difference]: Start difference. First operand 5443 states and 14342 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:03,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:03,611 INFO L93 Difference]: Finished difference Result 10063 states and 26541 transitions. [2022-01-18 11:19:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:19:03,611 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:03,624 INFO L225 Difference]: With dead ends: 10063 [2022-01-18 11:19:03,624 INFO L226 Difference]: Without dead ends: 9797 [2022-01-18 11:19:03,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=769, Invalid=2771, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:19:03,624 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 855 mSDsluCounter, 6533 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 6815 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:03,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 6815 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:03,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9797 states. [2022-01-18 11:19:03,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9797 to 5447. [2022-01-18 11:19:03,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.634777818582446) internal successors, (14349), 5446 states have internal predecessors, (14349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:03,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14349 transitions. [2022-01-18 11:19:03,701 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14349 transitions. Word has length 135 [2022-01-18 11:19:03,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:03,701 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14349 transitions. [2022-01-18 11:19:03,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:03,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14349 transitions. [2022-01-18 11:19:03,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:03,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:03,706 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] [2022-01-18 11:19:03,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 11:19:03,707 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:03,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:03,707 INFO L85 PathProgramCache]: Analyzing trace with hash -138557101, now seen corresponding path program 23 times [2022-01-18 11:19:03,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:03,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139480372] [2022-01-18 11:19:03,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:03,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:04,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:04,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:04,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139480372] [2022-01-18 11:19:04,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139480372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:04,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:04,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:04,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503958620] [2022-01-18 11:19:04,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:04,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:04,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:04,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:04,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:04,066 INFO L87 Difference]: Start difference. First operand 5447 states and 14349 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:06,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:06,031 INFO L93 Difference]: Finished difference Result 10025 states and 26441 transitions. [2022-01-18 11:19:06,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:19:06,031 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:06,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:06,044 INFO L225 Difference]: With dead ends: 10025 [2022-01-18 11:19:06,044 INFO L226 Difference]: Without dead ends: 9754 [2022-01-18 11:19:06,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=831, Invalid=2829, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:19:06,045 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 848 mSDsluCounter, 6410 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 6705 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:06,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [848 Valid, 6705 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:06,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9754 states. [2022-01-18 11:19:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9754 to 5439. [2022-01-18 11:19:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.635343876425156) internal successors, (14331), 5438 states have internal predecessors, (14331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14331 transitions. [2022-01-18 11:19:06,129 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14331 transitions. Word has length 135 [2022-01-18 11:19:06,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:06,129 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14331 transitions. [2022-01-18 11:19:06,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:06,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14331 transitions. [2022-01-18 11:19:06,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:06,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:06,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:06,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 11:19:06,135 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:06,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:06,135 INFO L85 PathProgramCache]: Analyzing trace with hash 234223065, now seen corresponding path program 24 times [2022-01-18 11:19:06,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:06,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434129163] [2022-01-18 11:19:06,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:06,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:06,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:06,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:06,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434129163] [2022-01-18 11:19:06,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434129163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:06,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:06,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:06,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87730564] [2022-01-18 11:19:06,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:06,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:06,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:06,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:06,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:06,528 INFO L87 Difference]: Start difference. First operand 5439 states and 14331 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:08,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:08,851 INFO L93 Difference]: Finished difference Result 10195 states and 26879 transitions. [2022-01-18 11:19:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:19:08,851 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:08,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:08,864 INFO L225 Difference]: With dead ends: 10195 [2022-01-18 11:19:08,864 INFO L226 Difference]: Without dead ends: 9898 [2022-01-18 11:19:08,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=945, Invalid=3345, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:19:08,865 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 932 mSDsluCounter, 6989 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 7258 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:08,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 7258 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:08,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9898 states. [2022-01-18 11:19:08,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9898 to 5443. [2022-01-18 11:19:08,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.6346931275266448) internal successors, (14338), 5442 states have internal predecessors, (14338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14338 transitions. [2022-01-18 11:19:08,945 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14338 transitions. Word has length 135 [2022-01-18 11:19:08,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:08,945 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14338 transitions. [2022-01-18 11:19:08,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:08,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14338 transitions. [2022-01-18 11:19:08,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:08,950 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:08,950 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:08,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 11:19:08,950 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:08,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2112612581, now seen corresponding path program 25 times [2022-01-18 11:19:08,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:08,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604816233] [2022-01-18 11:19:08,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:08,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:09,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:09,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604816233] [2022-01-18 11:19:09,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604816233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:09,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:09,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:09,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074745835] [2022-01-18 11:19:09,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:09,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:09,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:09,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:09,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:09,331 INFO L87 Difference]: Start difference. First operand 5443 states and 14338 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:11,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:11,367 INFO L93 Difference]: Finished difference Result 10079 states and 26581 transitions. [2022-01-18 11:19:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:19:11,368 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:11,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:11,380 INFO L225 Difference]: With dead ends: 10079 [2022-01-18 11:19:11,380 INFO L226 Difference]: Without dead ends: 9813 [2022-01-18 11:19:11,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=797, Invalid=2863, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:19:11,381 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 854 mSDsluCounter, 7257 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 7530 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:11,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [854 Valid, 7530 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:11,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9813 states. [2022-01-18 11:19:11,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9813 to 5447. [2022-01-18 11:19:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6340433345574734) internal successors, (14345), 5446 states have internal predecessors, (14345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:11,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14345 transitions. [2022-01-18 11:19:11,455 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14345 transitions. Word has length 135 [2022-01-18 11:19:11,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:11,456 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14345 transitions. [2022-01-18 11:19:11,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:11,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14345 transitions. [2022-01-18 11:19:11,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:11,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:11,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:11,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 11:19:11,461 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:11,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:11,461 INFO L85 PathProgramCache]: Analyzing trace with hash -56235891, now seen corresponding path program 26 times [2022-01-18 11:19:11,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:11,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201777730] [2022-01-18 11:19:11,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:11,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:11,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:11,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:11,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201777730] [2022-01-18 11:19:11,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201777730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:11,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:11,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:11,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543486975] [2022-01-18 11:19:11,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:11,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:11,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:11,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:11,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:11,837 INFO L87 Difference]: Start difference. First operand 5447 states and 14345 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:13,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:13,837 INFO L93 Difference]: Finished difference Result 10025 states and 26437 transitions. [2022-01-18 11:19:13,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:19:13,838 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:13,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:13,850 INFO L225 Difference]: With dead ends: 10025 [2022-01-18 11:19:13,851 INFO L226 Difference]: Without dead ends: 9750 [2022-01-18 11:19:13,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=799, Invalid=2741, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:19:13,851 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 846 mSDsluCounter, 6737 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 7025 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:13,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [846 Valid, 7025 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:13,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9750 states. [2022-01-18 11:19:13,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9750 to 5435. [2022-01-18 11:19:13,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.6352594773647406) internal successors, (14320), 5434 states have internal predecessors, (14320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14320 transitions. [2022-01-18 11:19:13,934 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14320 transitions. Word has length 135 [2022-01-18 11:19:13,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:13,934 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14320 transitions. [2022-01-18 11:19:13,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:13,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14320 transitions. [2022-01-18 11:19:13,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:13,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:13,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:13,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 11:19:13,940 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:13,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:13,940 INFO L85 PathProgramCache]: Analyzing trace with hash -675541943, now seen corresponding path program 27 times [2022-01-18 11:19:13,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:13,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202772691] [2022-01-18 11:19:13,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:13,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:14,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:14,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202772691] [2022-01-18 11:19:14,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202772691] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:14,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:14,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:14,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836802818] [2022-01-18 11:19:14,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:14,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:14,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:14,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:14,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:14,366 INFO L87 Difference]: Start difference. First operand 5435 states and 14320 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:16,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:16,954 INFO L93 Difference]: Finished difference Result 10362 states and 27307 transitions. [2022-01-18 11:19:16,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:19:16,954 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:16,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:16,967 INFO L225 Difference]: With dead ends: 10362 [2022-01-18 11:19:16,968 INFO L226 Difference]: Without dead ends: 9972 [2022-01-18 11:19:16,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1148, Invalid=3964, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:19:16,968 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 984 mSDsluCounter, 7162 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 7420 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:16,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 7420 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:16,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9972 states. [2022-01-18 11:19:17,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9972 to 5447. [2022-01-18 11:19:17,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.633308850532501) internal successors, (14341), 5446 states have internal predecessors, (14341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:17,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14341 transitions. [2022-01-18 11:19:17,052 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14341 transitions. Word has length 135 [2022-01-18 11:19:17,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:17,052 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14341 transitions. [2022-01-18 11:19:17,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:17,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14341 transitions. [2022-01-18 11:19:17,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:17,057 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:17,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:17,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 11:19:17,057 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:17,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:17,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1069006979, now seen corresponding path program 28 times [2022-01-18 11:19:17,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:17,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328350937] [2022-01-18 11:19:17,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:17,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:17,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:17,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328350937] [2022-01-18 11:19:17,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328350937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:17,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:17,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:17,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353366284] [2022-01-18 11:19:17,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:17,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:17,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:17,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:17,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:17,425 INFO L87 Difference]: Start difference. First operand 5447 states and 14341 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:19,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:19,644 INFO L93 Difference]: Finished difference Result 10211 states and 26911 transitions. [2022-01-18 11:19:19,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:19:19,645 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:19,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:19,655 INFO L225 Difference]: With dead ends: 10211 [2022-01-18 11:19:19,655 INFO L226 Difference]: Without dead ends: 9914 [2022-01-18 11:19:19,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=972, Invalid=3450, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:19:19,655 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 921 mSDsluCounter, 6653 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 6928 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:19,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 6928 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:19,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9914 states. [2022-01-18 11:19:19,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9914 to 5451. [2022-01-18 11:19:19,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6326605504587155) internal successors, (14348), 5450 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:19,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14348 transitions. [2022-01-18 11:19:19,724 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14348 transitions. Word has length 135 [2022-01-18 11:19:19,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:19,724 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14348 transitions. [2022-01-18 11:19:19,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:19,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14348 transitions. [2022-01-18 11:19:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:19,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:19,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:19,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 11:19:19,729 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:19,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:19,729 INFO L85 PathProgramCache]: Analyzing trace with hash 809382537, now seen corresponding path program 29 times [2022-01-18 11:19:19,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:19,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181996119] [2022-01-18 11:19:19,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:19,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:20,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:20,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181996119] [2022-01-18 11:19:20,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181996119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:20,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:20,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:20,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395039404] [2022-01-18 11:19:20,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:20,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:20,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:20,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:20,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:20,094 INFO L87 Difference]: Start difference. First operand 5451 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:22,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:22,075 INFO L93 Difference]: Finished difference Result 10095 states and 26613 transitions. [2022-01-18 11:19:22,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:19:22,075 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:22,088 INFO L225 Difference]: With dead ends: 10095 [2022-01-18 11:19:22,088 INFO L226 Difference]: Without dead ends: 9829 [2022-01-18 11:19:22,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=792, Invalid=2868, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:19:22,089 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 869 mSDsluCounter, 6855 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:22,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 7133 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:22,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2022-01-18 11:19:22,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 5455. [2022-01-18 11:19:22,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632013201320132) internal successors, (14355), 5454 states have internal predecessors, (14355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14355 transitions. [2022-01-18 11:19:22,167 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14355 transitions. Word has length 135 [2022-01-18 11:19:22,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:22,167 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14355 transitions. [2022-01-18 11:19:22,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:22,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14355 transitions. [2022-01-18 11:19:22,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:22,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:22,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:22,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 11:19:22,173 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:22,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:22,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1359465935, now seen corresponding path program 30 times [2022-01-18 11:19:22,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:22,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000420322] [2022-01-18 11:19:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:22,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:22,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:22,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000420322] [2022-01-18 11:19:22,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000420322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:22,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:22,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:22,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998308238] [2022-01-18 11:19:22,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:22,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:22,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:22,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:22,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:22,539 INFO L87 Difference]: Start difference. First operand 5455 states and 14355 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:24,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:24,527 INFO L93 Difference]: Finished difference Result 10033 states and 26447 transitions. [2022-01-18 11:19:24,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:19:24,527 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:24,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:24,537 INFO L225 Difference]: With dead ends: 10033 [2022-01-18 11:19:24,538 INFO L226 Difference]: Without dead ends: 9738 [2022-01-18 11:19:24,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=771, Invalid=2651, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:19:24,538 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 832 mSDsluCounter, 7102 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:24,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 7382 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:24,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9738 states. [2022-01-18 11:19:24,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9738 to 5423. [2022-01-18 11:19:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 2.635005533013648) internal successors, (14287), 5422 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:24,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 14287 transitions. [2022-01-18 11:19:24,607 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 14287 transitions. Word has length 135 [2022-01-18 11:19:24,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:24,607 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 14287 transitions. [2022-01-18 11:19:24,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:24,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 14287 transitions. [2022-01-18 11:19:24,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:24,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:24,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:24,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 11:19:24,612 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:24,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:24,613 INFO L85 PathProgramCache]: Analyzing trace with hash 124138487, now seen corresponding path program 31 times [2022-01-18 11:19:24,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:24,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055786257] [2022-01-18 11:19:24,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:24,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:24,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:24,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055786257] [2022-01-18 11:19:24,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055786257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:24,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:24,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:24,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801442233] [2022-01-18 11:19:24,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:24,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:24,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:24,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:24,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:24,992 INFO L87 Difference]: Start difference. First operand 5423 states and 14287 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:27,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:27,708 INFO L93 Difference]: Finished difference Result 10396 states and 27301 transitions. [2022-01-18 11:19:27,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:19:27,708 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:27,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:27,720 INFO L225 Difference]: With dead ends: 10396 [2022-01-18 11:19:27,720 INFO L226 Difference]: Without dead ends: 9975 [2022-01-18 11:19:27,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1330, Invalid=4370, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:19:27,721 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1220 mSDsluCounter, 6840 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 7103 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:27,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1220 Valid, 7103 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:27,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9975 states. [2022-01-18 11:19:27,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9975 to 5427. [2022-01-18 11:19:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 2.6343531146332473) internal successors, (14294), 5426 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 14294 transitions. [2022-01-18 11:19:27,796 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 14294 transitions. Word has length 135 [2022-01-18 11:19:27,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:27,796 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 14294 transitions. [2022-01-18 11:19:27,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:27,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 14294 transitions. [2022-01-18 11:19:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:27,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:27,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:27,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 11:19:27,802 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:27,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:27,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1221358625, now seen corresponding path program 32 times [2022-01-18 11:19:27,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:27,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636651179] [2022-01-18 11:19:27,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:27,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:28,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:28,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636651179] [2022-01-18 11:19:28,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636651179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:28,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:28,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:28,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204014385] [2022-01-18 11:19:28,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:28,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:28,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:28,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:28,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:28,135 INFO L87 Difference]: Start difference. First operand 5427 states and 14294 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:30,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:30,614 INFO L93 Difference]: Finished difference Result 10194 states and 26841 transitions. [2022-01-18 11:19:30,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:19:30,614 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:30,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:30,625 INFO L225 Difference]: With dead ends: 10194 [2022-01-18 11:19:30,625 INFO L226 Difference]: Without dead ends: 9804 [2022-01-18 11:19:30,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1168, Invalid=4088, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:19:30,626 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 990 mSDsluCounter, 6373 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 6650 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:30,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 6650 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:30,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9804 states. [2022-01-18 11:19:30,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9804 to 5439. [2022-01-18 11:19:30,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.632401618242001) internal successors, (14315), 5438 states have internal predecessors, (14315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:30,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14315 transitions. [2022-01-18 11:19:30,696 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14315 transitions. Word has length 135 [2022-01-18 11:19:30,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:30,696 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14315 transitions. [2022-01-18 11:19:30,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14315 transitions. [2022-01-18 11:19:30,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:30,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:30,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:30,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 11:19:30,701 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:30,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:30,702 INFO L85 PathProgramCache]: Analyzing trace with hash 76262421, now seen corresponding path program 33 times [2022-01-18 11:19:30,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:30,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473045495] [2022-01-18 11:19:30,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:30,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:31,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:31,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:31,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473045495] [2022-01-18 11:19:31,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473045495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:31,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:31,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:31,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887121964] [2022-01-18 11:19:31,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:31,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:31,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:31,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:31,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:31,056 INFO L87 Difference]: Start difference. First operand 5439 states and 14315 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:33,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:33,338 INFO L93 Difference]: Finished difference Result 10051 states and 26467 transitions. [2022-01-18 11:19:33,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:19:33,338 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:33,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:33,351 INFO L225 Difference]: With dead ends: 10051 [2022-01-18 11:19:33,351 INFO L226 Difference]: Without dead ends: 9754 [2022-01-18 11:19:33,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=960, Invalid=3462, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:19:33,352 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 922 mSDsluCounter, 7367 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 7627 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:33,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 7627 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:33,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9754 states. [2022-01-18 11:19:33,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9754 to 5443. [2022-01-18 11:19:33,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.631753031973539) internal successors, (14322), 5442 states have internal predecessors, (14322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14322 transitions. [2022-01-18 11:19:33,431 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14322 transitions. Word has length 135 [2022-01-18 11:19:33,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:33,431 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14322 transitions. [2022-01-18 11:19:33,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:33,431 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14322 transitions. [2022-01-18 11:19:33,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:33,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:33,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:33,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 11:19:33,436 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:33,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:33,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1954651937, now seen corresponding path program 34 times [2022-01-18 11:19:33,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:33,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096273498] [2022-01-18 11:19:33,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:33,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:33,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:33,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:33,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096273498] [2022-01-18 11:19:33,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096273498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:33,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:33,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:33,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383873048] [2022-01-18 11:19:33,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:33,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:33,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:33,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:33,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:33,837 INFO L87 Difference]: Start difference. First operand 5443 states and 14322 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:35,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:35,666 INFO L93 Difference]: Finished difference Result 9951 states and 26213 transitions. [2022-01-18 11:19:35,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:19:35,666 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:35,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:35,679 INFO L225 Difference]: With dead ends: 9951 [2022-01-18 11:19:35,680 INFO L226 Difference]: Without dead ends: 9685 [2022-01-18 11:19:35,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=789, Invalid=2871, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:19:35,680 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 869 mSDsluCounter, 6116 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 6401 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:35,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 6401 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:35,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9685 states. [2022-01-18 11:19:35,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9685 to 5447. [2022-01-18 11:19:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6311053984575836) internal successors, (14329), 5446 states have internal predecessors, (14329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:35,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14329 transitions. [2022-01-18 11:19:35,766 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14329 transitions. Word has length 135 [2022-01-18 11:19:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:35,766 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14329 transitions. [2022-01-18 11:19:35,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:35,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14329 transitions. [2022-01-18 11:19:35,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:35,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:35,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:35,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 11:19:35,772 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:35,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:35,772 INFO L85 PathProgramCache]: Analyzing trace with hash -214196535, now seen corresponding path program 35 times [2022-01-18 11:19:35,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:35,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680703618] [2022-01-18 11:19:35,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:35,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:36,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:36,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:36,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680703618] [2022-01-18 11:19:36,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680703618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:36,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:36,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:36,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020083063] [2022-01-18 11:19:36,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:36,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:36,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:36,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:36,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:36,117 INFO L87 Difference]: Start difference. First operand 5447 states and 14329 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:37,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:37,906 INFO L93 Difference]: Finished difference Result 9817 states and 25865 transitions. [2022-01-18 11:19:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:19:37,906 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:37,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:37,918 INFO L225 Difference]: With dead ends: 9817 [2022-01-18 11:19:37,918 INFO L226 Difference]: Without dead ends: 9514 [2022-01-18 11:19:37,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=747, Invalid=2559, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:19:37,919 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 832 mSDsluCounter, 6363 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 6648 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:37,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 6648 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:37,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9514 states. [2022-01-18 11:19:37,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9514 to 5407. [2022-01-18 11:19:37,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 5406 states have (on average 2.6354051054384016) internal successors, (14247), 5406 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 14247 transitions. [2022-01-18 11:19:37,996 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 14247 transitions. Word has length 135 [2022-01-18 11:19:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:37,996 INFO L470 AbstractCegarLoop]: Abstraction has 5407 states and 14247 transitions. [2022-01-18 11:19:37,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 14247 transitions. [2022-01-18 11:19:38,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:38,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:38,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:38,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 11:19:38,002 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:38,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:38,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1047311371, now seen corresponding path program 36 times [2022-01-18 11:19:38,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:38,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578683510] [2022-01-18 11:19:38,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:38,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:38,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:38,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:38,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578683510] [2022-01-18 11:19:38,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578683510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:38,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:38,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:38,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710127186] [2022-01-18 11:19:38,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:38,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:38,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:38,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:38,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:38,382 INFO L87 Difference]: Start difference. First operand 5407 states and 14247 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:40,647 INFO L93 Difference]: Finished difference Result 10297 states and 27193 transitions. [2022-01-18 11:19:40,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:19:40,647 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:40,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:40,660 INFO L225 Difference]: With dead ends: 10297 [2022-01-18 11:19:40,660 INFO L226 Difference]: Without dead ends: 10006 [2022-01-18 11:19:40,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=943, Invalid=3089, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:19:40,661 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 915 mSDsluCounter, 6910 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 7205 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:40,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 7205 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:40,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10006 states. [2022-01-18 11:19:40,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10006 to 5483. [2022-01-18 11:19:40,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.636264137176213) internal successors, (14452), 5482 states have internal predecessors, (14452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:40,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14452 transitions. [2022-01-18 11:19:40,738 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14452 transitions. Word has length 135 [2022-01-18 11:19:40,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:40,738 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14452 transitions. [2022-01-18 11:19:40,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:40,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14452 transitions. [2022-01-18 11:19:40,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:40,743 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:40,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:40,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 11:19:40,743 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:40,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:40,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1339017399, now seen corresponding path program 37 times [2022-01-18 11:19:40,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:40,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078021588] [2022-01-18 11:19:40,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:40,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:41,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:41,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078021588] [2022-01-18 11:19:41,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078021588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:41,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:41,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:41,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372591768] [2022-01-18 11:19:41,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:41,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:41,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:41,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:41,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:41,126 INFO L87 Difference]: Start difference. First operand 5483 states and 14452 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:43,021 INFO L93 Difference]: Finished difference Result 10311 states and 27223 transitions. [2022-01-18 11:19:43,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:19:43,022 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:43,034 INFO L225 Difference]: With dead ends: 10311 [2022-01-18 11:19:43,034 INFO L226 Difference]: Without dead ends: 10045 [2022-01-18 11:19:43,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=763, Invalid=2777, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:19:43,035 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 873 mSDsluCounter, 6980 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 7267 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:43,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [873 Valid, 7267 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:43,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10045 states. [2022-01-18 11:19:43,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10045 to 5487. [2022-01-18 11:19:43,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.635617936565804) internal successors, (14459), 5486 states have internal predecessors, (14459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14459 transitions. [2022-01-18 11:19:43,113 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14459 transitions. Word has length 135 [2022-01-18 11:19:43,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:43,113 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14459 transitions. [2022-01-18 11:19:43,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:43,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14459 transitions. [2022-01-18 11:19:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:43,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:43,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:43,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 11:19:43,118 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:43,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:43,118 INFO L85 PathProgramCache]: Analyzing trace with hash 787101425, now seen corresponding path program 38 times [2022-01-18 11:19:43,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:43,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828341242] [2022-01-18 11:19:43,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:43,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:43,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:43,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828341242] [2022-01-18 11:19:43,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828341242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:43,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:43,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:43,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889812420] [2022-01-18 11:19:43,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:43,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:43,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:43,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:43,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:43,503 INFO L87 Difference]: Start difference. First operand 5487 states and 14459 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:45,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:45,560 INFO L93 Difference]: Finished difference Result 10273 states and 27123 transitions. [2022-01-18 11:19:45,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:19:45,560 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:45,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:45,573 INFO L225 Difference]: With dead ends: 10273 [2022-01-18 11:19:45,574 INFO L226 Difference]: Without dead ends: 10002 [2022-01-18 11:19:45,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=827, Invalid=2833, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:19:45,574 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 864 mSDsluCounter, 6895 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 7192 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:45,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [864 Valid, 7192 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:45,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10002 states. [2022-01-18 11:19:45,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10002 to 5479. [2022-01-18 11:19:45,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6361810879883167) internal successors, (14441), 5478 states have internal predecessors, (14441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:45,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14441 transitions. [2022-01-18 11:19:45,657 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14441 transitions. Word has length 135 [2022-01-18 11:19:45,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:45,658 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14441 transitions. [2022-01-18 11:19:45,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:45,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14441 transitions. [2022-01-18 11:19:45,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:45,663 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:45,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:45,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 11:19:45,663 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:45,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1159881591, now seen corresponding path program 39 times [2022-01-18 11:19:45,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:45,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300955877] [2022-01-18 11:19:45,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:45,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:46,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:46,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:46,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300955877] [2022-01-18 11:19:46,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300955877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:46,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:46,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:46,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042534704] [2022-01-18 11:19:46,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:46,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:46,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:46,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:46,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:46,048 INFO L87 Difference]: Start difference. First operand 5479 states and 14441 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:48,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:48,290 INFO L93 Difference]: Finished difference Result 10443 states and 27561 transitions. [2022-01-18 11:19:48,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:19:48,290 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:48,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:48,303 INFO L225 Difference]: With dead ends: 10443 [2022-01-18 11:19:48,304 INFO L226 Difference]: Without dead ends: 10146 [2022-01-18 11:19:48,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=936, Invalid=3354, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:19:48,304 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 940 mSDsluCounter, 7103 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 7380 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:48,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [940 Valid, 7380 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:48,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10146 states. [2022-01-18 11:19:48,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10146 to 5483. [2022-01-18 11:19:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6355344764684423) internal successors, (14448), 5482 states have internal predecessors, (14448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14448 transitions. [2022-01-18 11:19:48,397 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14448 transitions. Word has length 135 [2022-01-18 11:19:48,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:48,397 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14448 transitions. [2022-01-18 11:19:48,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:48,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14448 transitions. [2022-01-18 11:19:48,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:48,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:48,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:48,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 11:19:48,402 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:48,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:48,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1256696189, now seen corresponding path program 40 times [2022-01-18 11:19:48,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:48,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331471565] [2022-01-18 11:19:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:48,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:48,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:48,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:48,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331471565] [2022-01-18 11:19:48,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331471565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:48,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:48,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:48,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225470595] [2022-01-18 11:19:48,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:48,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:48,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:48,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:48,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:48,811 INFO L87 Difference]: Start difference. First operand 5483 states and 14448 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:50,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:50,726 INFO L93 Difference]: Finished difference Result 10327 states and 27263 transitions. [2022-01-18 11:19:50,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:19:50,726 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:50,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:50,739 INFO L225 Difference]: With dead ends: 10327 [2022-01-18 11:19:50,739 INFO L226 Difference]: Without dead ends: 10061 [2022-01-18 11:19:50,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=793, Invalid=2867, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:19:50,740 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 876 mSDsluCounter, 6617 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 6910 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:50,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [876 Valid, 6910 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:50,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10061 states. [2022-01-18 11:19:50,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10061 to 5487. [2022-01-18 11:19:50,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.63488880787459) internal successors, (14455), 5486 states have internal predecessors, (14455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14455 transitions. [2022-01-18 11:19:50,818 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14455 transitions. Word has length 135 [2022-01-18 11:19:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:50,818 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14455 transitions. [2022-01-18 11:19:50,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14455 transitions. [2022-01-18 11:19:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:50,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:50,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:50,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 11:19:50,823 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:50,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:50,824 INFO L85 PathProgramCache]: Analyzing trace with hash 869422635, now seen corresponding path program 41 times [2022-01-18 11:19:50,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:50,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109815070] [2022-01-18 11:19:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:50,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:51,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:51,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109815070] [2022-01-18 11:19:51,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109815070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:51,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:51,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:51,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652462005] [2022-01-18 11:19:51,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:51,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:51,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:51,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:51,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:51,168 INFO L87 Difference]: Start difference. First operand 5487 states and 14455 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:53,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:53,062 INFO L93 Difference]: Finished difference Result 10273 states and 27119 transitions. [2022-01-18 11:19:53,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:19:53,062 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:53,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:53,075 INFO L225 Difference]: With dead ends: 10273 [2022-01-18 11:19:53,075 INFO L226 Difference]: Without dead ends: 9998 [2022-01-18 11:19:53,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=799, Invalid=2741, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:19:53,076 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 860 mSDsluCounter, 6132 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 6436 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:53,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [860 Valid, 6436 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:19:53,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9998 states. [2022-01-18 11:19:53,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 5475. [2022-01-18 11:19:53,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6360979174278407) internal successors, (14430), 5474 states have internal predecessors, (14430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:53,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14430 transitions. [2022-01-18 11:19:53,163 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14430 transitions. Word has length 135 [2022-01-18 11:19:53,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:53,163 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14430 transitions. [2022-01-18 11:19:53,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14430 transitions. [2022-01-18 11:19:53,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:53,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:53,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:53,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 11:19:53,169 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:53,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:53,169 INFO L85 PathProgramCache]: Analyzing trace with hash 250116583, now seen corresponding path program 42 times [2022-01-18 11:19:53,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:53,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64016913] [2022-01-18 11:19:53,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:53,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:53,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:53,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64016913] [2022-01-18 11:19:53,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64016913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:53,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:53,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:53,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443185449] [2022-01-18 11:19:53,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:53,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:53,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:53,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:53,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:53,526 INFO L87 Difference]: Start difference. First operand 5475 states and 14430 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:56,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:56,094 INFO L93 Difference]: Finished difference Result 10610 states and 27989 transitions. [2022-01-18 11:19:56,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:19:56,094 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:56,108 INFO L225 Difference]: With dead ends: 10610 [2022-01-18 11:19:56,108 INFO L226 Difference]: Without dead ends: 10220 [2022-01-18 11:19:56,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1134, Invalid=3978, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:19:56,109 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1025 mSDsluCounter, 7228 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 7498 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:56,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1025 Valid, 7498 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:56,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10220 states. [2022-01-18 11:19:56,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10220 to 5487. [2022-01-18 11:19:56,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.6341596791833757) internal successors, (14451), 5486 states have internal predecessors, (14451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:56,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14451 transitions. [2022-01-18 11:19:56,196 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14451 transitions. Word has length 135 [2022-01-18 11:19:56,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:56,196 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14451 transitions. [2022-01-18 11:19:56,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:56,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14451 transitions. [2022-01-18 11:19:56,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:56,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:56,202 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] [2022-01-18 11:19:56,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 11:19:56,202 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:56,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:56,202 INFO L85 PathProgramCache]: Analyzing trace with hash -143348453, now seen corresponding path program 43 times [2022-01-18 11:19:56,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:56,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486009371] [2022-01-18 11:19:56,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:56,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:56,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:56,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486009371] [2022-01-18 11:19:56,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486009371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:56,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:56,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:56,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865293527] [2022-01-18 11:19:56,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:56,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:56,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:56,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:56,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:56,553 INFO L87 Difference]: Start difference. First operand 5487 states and 14451 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:58,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:19:58,773 INFO L93 Difference]: Finished difference Result 10459 states and 27593 transitions. [2022-01-18 11:19:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:19:58,773 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:19:58,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:19:58,784 INFO L225 Difference]: With dead ends: 10459 [2022-01-18 11:19:58,784 INFO L226 Difference]: Without dead ends: 10162 [2022-01-18 11:19:58,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=962, Invalid=3460, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:19:58,784 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 937 mSDsluCounter, 7112 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 7391 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:19:58,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 7391 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:19:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10162 states. [2022-01-18 11:19:58,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10162 to 5491. [2022-01-18 11:19:58,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6335154826958105) internal successors, (14458), 5490 states have internal predecessors, (14458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14458 transitions. [2022-01-18 11:19:58,853 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14458 transitions. Word has length 135 [2022-01-18 11:19:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:19:58,853 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14458 transitions. [2022-01-18 11:19:58,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:19:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14458 transitions. [2022-01-18 11:19:58,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:19:58,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:19:58,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:19:58,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 11:19:58,858 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:19:58,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:19:58,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1735041063, now seen corresponding path program 44 times [2022-01-18 11:19:58,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:19:58,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108410909] [2022-01-18 11:19:58,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:19:58,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:19:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:19:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:19:59,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:19:59,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108410909] [2022-01-18 11:19:59,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108410909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:19:59,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:19:59,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:19:59,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245783278] [2022-01-18 11:19:59,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:19:59,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:19:59,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:19:59,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:19:59,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:19:59,224 INFO L87 Difference]: Start difference. First operand 5491 states and 14458 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:01,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:01,226 INFO L93 Difference]: Finished difference Result 10343 states and 27295 transitions. [2022-01-18 11:20:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:20:01,227 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:01,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:01,239 INFO L225 Difference]: With dead ends: 10343 [2022-01-18 11:20:01,240 INFO L226 Difference]: Without dead ends: 10077 [2022-01-18 11:20:01,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=786, Invalid=2874, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:20:01,240 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 877 mSDsluCounter, 7359 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 7638 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:01,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 7638 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:01,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10077 states. [2022-01-18 11:20:01,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10077 to 5495. [2022-01-18 11:20:01,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.6328722242446303) internal successors, (14465), 5494 states have internal predecessors, (14465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:01,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14465 transitions. [2022-01-18 11:20:01,317 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14465 transitions. Word has length 135 [2022-01-18 11:20:01,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:01,317 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14465 transitions. [2022-01-18 11:20:01,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:01,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14465 transitions. [2022-01-18 11:20:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:01,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:01,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:01,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 11:20:01,322 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:01,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:01,323 INFO L85 PathProgramCache]: Analyzing trace with hash -433807409, now seen corresponding path program 45 times [2022-01-18 11:20:01,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:01,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6362833] [2022-01-18 11:20:01,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:01,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:01,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:01,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:01,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6362833] [2022-01-18 11:20:01,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6362833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:01,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:01,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:01,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070736422] [2022-01-18 11:20:01,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:01,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:01,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:01,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:01,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:01,701 INFO L87 Difference]: Start difference. First operand 5495 states and 14465 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:03,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:03,556 INFO L93 Difference]: Finished difference Result 10281 states and 27129 transitions. [2022-01-18 11:20:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:20:03,557 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:03,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:03,568 INFO L225 Difference]: With dead ends: 10281 [2022-01-18 11:20:03,568 INFO L226 Difference]: Without dead ends: 9986 [2022-01-18 11:20:03,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=771, Invalid=2651, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:20:03,569 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 869 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 6421 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:03,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 6421 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:03,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9986 states. [2022-01-18 11:20:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9986 to 5463. [2022-01-18 11:20:03,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.6358476748443795) internal successors, (14397), 5462 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:03,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14397 transitions. [2022-01-18 11:20:03,648 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14397 transitions. Word has length 135 [2022-01-18 11:20:03,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:03,648 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14397 transitions. [2022-01-18 11:20:03,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:03,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14397 transitions. [2022-01-18 11:20:03,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:03,653 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:03,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:03,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 11:20:03,654 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:03,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:03,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1049797013, now seen corresponding path program 46 times [2022-01-18 11:20:03,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:03,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061079765] [2022-01-18 11:20:03,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:03,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:04,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:04,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:04,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061079765] [2022-01-18 11:20:04,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061079765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:04,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:04,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:04,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753860366] [2022-01-18 11:20:04,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:04,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:04,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:04,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:04,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:04,007 INFO L87 Difference]: Start difference. First operand 5463 states and 14397 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:06,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:06,845 INFO L93 Difference]: Finished difference Result 10852 states and 28539 transitions. [2022-01-18 11:20:06,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:20:06,845 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:06,859 INFO L225 Difference]: With dead ends: 10852 [2022-01-18 11:20:06,860 INFO L226 Difference]: Without dead ends: 10431 [2022-01-18 11:20:06,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1312, Invalid=4388, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:20:06,861 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1237 mSDsluCounter, 7371 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 7636 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:06,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1237 Valid, 7636 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:06,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2022-01-18 11:20:06,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5467. [2022-01-18 11:20:06,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.6351994145627518) internal successors, (14404), 5466 states have internal predecessors, (14404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14404 transitions. [2022-01-18 11:20:06,950 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14404 transitions. Word has length 135 [2022-01-18 11:20:06,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:06,950 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14404 transitions. [2022-01-18 11:20:06,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:06,950 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14404 transitions. [2022-01-18 11:20:06,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:06,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:06,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:06,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 11:20:06,956 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:06,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:06,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2147017151, now seen corresponding path program 47 times [2022-01-18 11:20:06,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:06,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802956509] [2022-01-18 11:20:06,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:06,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:07,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:07,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:07,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802956509] [2022-01-18 11:20:07,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802956509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:07,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:07,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:07,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467949497] [2022-01-18 11:20:07,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:07,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:07,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:07,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:07,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:07,339 INFO L87 Difference]: Start difference. First operand 5467 states and 14404 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:09,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:09,934 INFO L93 Difference]: Finished difference Result 10626 states and 28021 transitions. [2022-01-18 11:20:09,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:20:09,934 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:09,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:09,947 INFO L225 Difference]: With dead ends: 10626 [2022-01-18 11:20:09,948 INFO L226 Difference]: Without dead ends: 10236 [2022-01-18 11:20:09,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1152, Invalid=4104, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:20:09,948 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 1001 mSDsluCounter, 7676 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 7939 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:09,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1001 Valid, 7939 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:09,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10236 states. [2022-01-18 11:20:10,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10236 to 5479. [2022-01-18 11:20:10,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6332603139832056) internal successors, (14425), 5478 states have internal predecessors, (14425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:10,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14425 transitions. [2022-01-18 11:20:10,035 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14425 transitions. Word has length 135 [2022-01-18 11:20:10,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:10,036 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14425 transitions. [2022-01-18 11:20:10,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:10,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14425 transitions. [2022-01-18 11:20:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:10,041 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:10,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:10,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 11:20:10,041 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:10,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:10,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1001920947, now seen corresponding path program 48 times [2022-01-18 11:20:10,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:10,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921267474] [2022-01-18 11:20:10,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:10,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:10,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:10,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:10,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921267474] [2022-01-18 11:20:10,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921267474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:10,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:10,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:10,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351611032] [2022-01-18 11:20:10,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:10,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:10,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:10,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:10,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:10,419 INFO L87 Difference]: Start difference. First operand 5479 states and 14425 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:12,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:12,733 INFO L93 Difference]: Finished difference Result 10475 states and 27625 transitions. [2022-01-18 11:20:12,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:20:12,734 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:12,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:12,768 INFO L225 Difference]: With dead ends: 10475 [2022-01-18 11:20:12,769 INFO L226 Difference]: Without dead ends: 10178 [2022-01-18 11:20:12,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=949, Invalid=3473, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:20:12,769 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 937 mSDsluCounter, 7518 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 7787 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:12,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 7787 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2022-01-18 11:20:12,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 5483. [2022-01-18 11:20:12,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6326158336373586) internal successors, (14432), 5482 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14432 transitions. [2022-01-18 11:20:12,836 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14432 transitions. Word has length 135 [2022-01-18 11:20:12,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:12,836 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14432 transitions. [2022-01-18 11:20:12,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:12,836 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14432 transitions. [2022-01-18 11:20:12,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:12,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:12,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:12,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 11:20:12,841 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:12,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:12,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1414656833, now seen corresponding path program 49 times [2022-01-18 11:20:12,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:12,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145725930] [2022-01-18 11:20:12,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:12,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:13,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:13,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145725930] [2022-01-18 11:20:13,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145725930] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:13,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:13,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:13,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140513854] [2022-01-18 11:20:13,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:13,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:13,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:13,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:13,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:13,194 INFO L87 Difference]: Start difference. First operand 5483 states and 14432 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:15,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:15,160 INFO L93 Difference]: Finished difference Result 10359 states and 27327 transitions. [2022-01-18 11:20:15,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:20:15,161 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:15,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:15,173 INFO L225 Difference]: With dead ends: 10359 [2022-01-18 11:20:15,174 INFO L226 Difference]: Without dead ends: 10093 [2022-01-18 11:20:15,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=781, Invalid=2879, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:20:15,174 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 877 mSDsluCounter, 6973 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 7257 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:15,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 7257 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:15,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10093 states. [2022-01-18 11:20:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10093 to 5487. [2022-01-18 11:20:15,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.631972293109734) internal successors, (14439), 5486 states have internal predecessors, (14439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14439 transitions. [2022-01-18 11:20:15,252 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14439 transitions. Word has length 135 [2022-01-18 11:20:15,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:15,253 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14439 transitions. [2022-01-18 11:20:15,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:15,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14439 transitions. [2022-01-18 11:20:15,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:15,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:15,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:15,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 11:20:15,258 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:15,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:15,258 INFO L85 PathProgramCache]: Analyzing trace with hash 711461991, now seen corresponding path program 50 times [2022-01-18 11:20:15,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:15,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881980689] [2022-01-18 11:20:15,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:15,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:15,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:15,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881980689] [2022-01-18 11:20:15,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881980689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:15,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:15,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:15,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491466422] [2022-01-18 11:20:15,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:15,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:15,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:15,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:15,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:15,623 INFO L87 Difference]: Start difference. First operand 5487 states and 14439 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:17,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:17,421 INFO L93 Difference]: Finished difference Result 10273 states and 27103 transitions. [2022-01-18 11:20:17,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:20:17,421 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:17,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:17,434 INFO L225 Difference]: With dead ends: 10273 [2022-01-18 11:20:17,434 INFO L226 Difference]: Without dead ends: 9982 [2022-01-18 11:20:17,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=745, Invalid=2561, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:20:17,434 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 849 mSDsluCounter, 6475 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 6771 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:17,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [849 Valid, 6771 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:20:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9982 states. [2022-01-18 11:20:17,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9982 to 5459. [2022-01-18 11:20:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 2.635764016123122) internal successors, (14386), 5458 states have internal predecessors, (14386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 14386 transitions. [2022-01-18 11:20:17,524 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 14386 transitions. Word has length 135 [2022-01-18 11:20:17,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:17,524 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 14386 transitions. [2022-01-18 11:20:17,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:17,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 14386 transitions. [2022-01-18 11:20:17,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:17,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:17,529 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] [2022-01-18 11:20:17,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 11:20:17,529 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:17,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:17,530 INFO L85 PathProgramCache]: Analyzing trace with hash 2050552393, now seen corresponding path program 51 times [2022-01-18 11:20:17,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:17,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017999711] [2022-01-18 11:20:17,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:17,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:17,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:17,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017999711] [2022-01-18 11:20:17,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017999711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:17,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:17,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:17,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113168416] [2022-01-18 11:20:17,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:17,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:17,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:17,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:17,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:17,873 INFO L87 Difference]: Start difference. First operand 5459 states and 14386 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:20,979 INFO L93 Difference]: Finished difference Result 10918 states and 28649 transitions. [2022-01-18 11:20:20,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 11:20:20,979 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:20,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:20,992 INFO L225 Difference]: With dead ends: 10918 [2022-01-18 11:20:20,992 INFO L226 Difference]: Without dead ends: 10094 [2022-01-18 11:20:20,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1464, Invalid=4698, Unknown=0, NotChecked=0, Total=6162 [2022-01-18 11:20:20,993 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1352 mSDsluCounter, 7760 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 8033 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:20,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 8033 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:20:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10094 states. [2022-01-18 11:20:21,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10094 to 5511. [2022-01-18 11:20:21,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5511 states, 5510 states have (on average 2.6274047186932847) internal successors, (14477), 5510 states have internal predecessors, (14477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5511 states to 5511 states and 14477 transitions. [2022-01-18 11:20:21,072 INFO L78 Accepts]: Start accepts. Automaton has 5511 states and 14477 transitions. Word has length 135 [2022-01-18 11:20:21,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:21,072 INFO L470 AbstractCegarLoop]: Abstraction has 5511 states and 14477 transitions. [2022-01-18 11:20:21,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5511 states and 14477 transitions. [2022-01-18 11:20:21,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:21,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:21,078 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] [2022-01-18 11:20:21,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 11:20:21,078 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:21,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:21,078 INFO L85 PathProgramCache]: Analyzing trace with hash -462365247, now seen corresponding path program 52 times [2022-01-18 11:20:21,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:21,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219463131] [2022-01-18 11:20:21,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:21,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:21,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:21,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219463131] [2022-01-18 11:20:21,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219463131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:21,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:21,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:21,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410893986] [2022-01-18 11:20:21,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:21,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:21,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:21,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:21,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:21,483 INFO L87 Difference]: Start difference. First operand 5511 states and 14477 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:24,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:24,198 INFO L93 Difference]: Finished difference Result 10484 states and 27491 transitions. [2022-01-18 11:20:24,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:20:24,198 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:24,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:24,209 INFO L225 Difference]: With dead ends: 10484 [2022-01-18 11:20:24,209 INFO L226 Difference]: Without dead ends: 10063 [2022-01-18 11:20:24,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1298, Invalid=4402, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:20:24,210 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1215 mSDsluCounter, 7483 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 7758 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:24,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1215 Valid, 7758 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:24,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2022-01-18 11:20:24,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 5515. [2022-01-18 11:20:24,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5515 states, 5514 states have (on average 2.626768226332971) internal successors, (14484), 5514 states have internal predecessors, (14484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 14484 transitions. [2022-01-18 11:20:24,282 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 14484 transitions. Word has length 135 [2022-01-18 11:20:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:24,282 INFO L470 AbstractCegarLoop]: Abstraction has 5515 states and 14484 transitions. [2022-01-18 11:20:24,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 14484 transitions. [2022-01-18 11:20:24,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:24,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:24,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:24,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 11:20:24,287 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:24,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:24,288 INFO L85 PathProgramCache]: Analyzing trace with hash 634854891, now seen corresponding path program 53 times [2022-01-18 11:20:24,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:24,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603679934] [2022-01-18 11:20:24,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:24,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:24,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:24,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:24,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603679934] [2022-01-18 11:20:24,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603679934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:24,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:24,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:24,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171176359] [2022-01-18 11:20:24,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:24,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:24,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:24,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:24,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:24,684 INFO L87 Difference]: Start difference. First operand 5515 states and 14484 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:27,134 INFO L93 Difference]: Finished difference Result 10282 states and 27031 transitions. [2022-01-18 11:20:27,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:20:27,135 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:27,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:27,147 INFO L225 Difference]: With dead ends: 10282 [2022-01-18 11:20:27,147 INFO L226 Difference]: Without dead ends: 9892 [2022-01-18 11:20:27,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1140, Invalid=4116, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:20:27,148 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1003 mSDsluCounter, 6569 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 6859 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:27,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 6859 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:27,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9892 states. [2022-01-18 11:20:27,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9892 to 5527. [2022-01-18 11:20:27,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 5526 states have (on average 2.6248642779587406) internal successors, (14505), 5526 states have internal predecessors, (14505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 14505 transitions. [2022-01-18 11:20:27,260 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 14505 transitions. Word has length 135 [2022-01-18 11:20:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:27,260 INFO L470 AbstractCegarLoop]: Abstraction has 5527 states and 14505 transitions. [2022-01-18 11:20:27,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:27,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 14505 transitions. [2022-01-18 11:20:27,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:27,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:27,266 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] [2022-01-18 11:20:27,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 11:20:27,266 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:27,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:27,267 INFO L85 PathProgramCache]: Analyzing trace with hash -510241313, now seen corresponding path program 54 times [2022-01-18 11:20:27,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:27,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104628025] [2022-01-18 11:20:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:27,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:27,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:27,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:27,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104628025] [2022-01-18 11:20:27,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104628025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:27,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:27,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:27,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966460530] [2022-01-18 11:20:27,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:27,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:27,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:27,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:27,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:27,638 INFO L87 Difference]: Start difference. First operand 5527 states and 14505 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:29,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:29,775 INFO L93 Difference]: Finished difference Result 10139 states and 26657 transitions. [2022-01-18 11:20:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:20:29,780 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:29,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:29,793 INFO L225 Difference]: With dead ends: 10139 [2022-01-18 11:20:29,793 INFO L226 Difference]: Without dead ends: 9842 [2022-01-18 11:20:29,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=942, Invalid=3480, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:20:29,794 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 939 mSDsluCounter, 6797 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 7086 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:29,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [939 Valid, 7086 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:29,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9842 states. [2022-01-18 11:20:29,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9842 to 5531. [2022-01-18 11:20:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5531 states, 5530 states have (on average 2.624231464737794) internal successors, (14512), 5530 states have internal predecessors, (14512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:29,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5531 states to 5531 states and 14512 transitions. [2022-01-18 11:20:29,875 INFO L78 Accepts]: Start accepts. Automaton has 5531 states and 14512 transitions. Word has length 135 [2022-01-18 11:20:29,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:29,875 INFO L470 AbstractCegarLoop]: Abstraction has 5531 states and 14512 transitions. [2022-01-18 11:20:29,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:29,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5531 states and 14512 transitions. [2022-01-18 11:20:29,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:29,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:29,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:29,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 11:20:29,881 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:29,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:29,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1368148203, now seen corresponding path program 55 times [2022-01-18 11:20:29,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:29,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300799658] [2022-01-18 11:20:29,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:29,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:30,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:30,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:30,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300799658] [2022-01-18 11:20:30,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300799658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:30,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:30,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:30,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13860843] [2022-01-18 11:20:30,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:30,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:30,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:30,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:30,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:30,244 INFO L87 Difference]: Start difference. First operand 5531 states and 14512 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:32,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:32,205 INFO L93 Difference]: Finished difference Result 10039 states and 26403 transitions. [2022-01-18 11:20:32,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:20:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:32,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:32,239 INFO L225 Difference]: With dead ends: 10039 [2022-01-18 11:20:32,239 INFO L226 Difference]: Without dead ends: 9773 [2022-01-18 11:20:32,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=775, Invalid=2885, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:20:32,240 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 872 mSDsluCounter, 7438 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 7721 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:32,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 7721 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:32,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9773 states. [2022-01-18 11:20:32,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9773 to 5535. [2022-01-18 11:20:32,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5535 states, 5534 states have (on average 2.6235995663173113) internal successors, (14519), 5534 states have internal predecessors, (14519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:32,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 14519 transitions. [2022-01-18 11:20:32,305 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 14519 transitions. Word has length 135 [2022-01-18 11:20:32,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:32,305 INFO L470 AbstractCegarLoop]: Abstraction has 5535 states and 14519 transitions. [2022-01-18 11:20:32,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:32,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 14519 transitions. [2022-01-18 11:20:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:32,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:32,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:32,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 11:20:32,310 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:32,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:32,311 INFO L85 PathProgramCache]: Analyzing trace with hash -800700269, now seen corresponding path program 56 times [2022-01-18 11:20:32,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:32,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708714757] [2022-01-18 11:20:32,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:32,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:32,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:32,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:32,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708714757] [2022-01-18 11:20:32,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708714757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:32,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:32,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:32,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991652917] [2022-01-18 11:20:32,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:32,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:32,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:32,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:32,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:32,674 INFO L87 Difference]: Start difference. First operand 5535 states and 14519 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:34,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:34,567 INFO L93 Difference]: Finished difference Result 9905 states and 26055 transitions. [2022-01-18 11:20:34,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:20:34,567 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:34,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:34,579 INFO L225 Difference]: With dead ends: 9905 [2022-01-18 11:20:34,579 INFO L226 Difference]: Without dead ends: 9358 [2022-01-18 11:20:34,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=741, Invalid=2565, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:20:34,580 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 862 mSDsluCounter, 6893 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 7191 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:34,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 7191 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:34,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9358 states. [2022-01-18 11:20:34,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9358 to 5251. [2022-01-18 11:20:34,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 2.632) internal successors, (13818), 5250 states have internal predecessors, (13818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:34,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 13818 transitions. [2022-01-18 11:20:34,652 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 13818 transitions. Word has length 135 [2022-01-18 11:20:34,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:34,652 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 13818 transitions. [2022-01-18 11:20:34,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:34,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 13818 transitions. [2022-01-18 11:20:34,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:34,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:34,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:34,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 11:20:34,657 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:34,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:34,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1752185001, now seen corresponding path program 57 times [2022-01-18 11:20:34,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:34,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668300638] [2022-01-18 11:20:34,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:34,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:34,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:34,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:34,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668300638] [2022-01-18 11:20:34,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668300638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:34,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:34,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:34,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670050427] [2022-01-18 11:20:34,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:34,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:34,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:34,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:34,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:34,998 INFO L87 Difference]: Start difference. First operand 5251 states and 13818 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:37,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:37,275 INFO L93 Difference]: Finished difference Result 10161 states and 26819 transitions. [2022-01-18 11:20:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:20:37,275 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:37,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:37,286 INFO L225 Difference]: With dead ends: 10161 [2022-01-18 11:20:37,286 INFO L226 Difference]: Without dead ends: 9870 [2022-01-18 11:20:37,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=941, Invalid=3091, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:20:37,287 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 893 mSDsluCounter, 6904 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 7200 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:37,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 7200 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:37,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9870 states. [2022-01-18 11:20:37,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9870 to 5331. [2022-01-18 11:20:37,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.633020637898687) internal successors, (14034), 5330 states have internal predecessors, (14034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14034 transitions. [2022-01-18 11:20:37,362 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14034 transitions. Word has length 135 [2022-01-18 11:20:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:37,362 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14034 transitions. [2022-01-18 11:20:37,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14034 transitions. [2022-01-18 11:20:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:37,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:37,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:37,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 11:20:37,368 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:37,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:37,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2043891029, now seen corresponding path program 58 times [2022-01-18 11:20:37,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:37,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878263444] [2022-01-18 11:20:37,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:37,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:37,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:37,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878263444] [2022-01-18 11:20:37,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878263444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:37,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:37,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:37,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519462440] [2022-01-18 11:20:37,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:37,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:37,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:37,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:37,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:37,741 INFO L87 Difference]: Start difference. First operand 5331 states and 14034 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:39,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:39,664 INFO L93 Difference]: Finished difference Result 10175 states and 26849 transitions. [2022-01-18 11:20:39,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:20:39,664 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:39,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:39,678 INFO L225 Difference]: With dead ends: 10175 [2022-01-18 11:20:39,678 INFO L226 Difference]: Without dead ends: 9909 [2022-01-18 11:20:39,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=755, Invalid=2785, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:20:39,678 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 870 mSDsluCounter, 6999 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 7285 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:39,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 7285 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:39,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9909 states. [2022-01-18 11:20:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9909 to 5335. [2022-01-18 11:20:39,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.632358455193101) internal successors, (14041), 5334 states have internal predecessors, (14041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:39,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14041 transitions. [2022-01-18 11:20:39,755 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14041 transitions. Word has length 135 [2022-01-18 11:20:39,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:39,755 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14041 transitions. [2022-01-18 11:20:39,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:39,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14041 transitions. [2022-01-18 11:20:39,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:39,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:39,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:39,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 11:20:39,760 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:39,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:39,760 INFO L85 PathProgramCache]: Analyzing trace with hash 82227795, now seen corresponding path program 59 times [2022-01-18 11:20:39,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:39,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735254663] [2022-01-18 11:20:39,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:39,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:40,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:40,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:40,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735254663] [2022-01-18 11:20:40,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735254663] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:40,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:40,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:40,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498929672] [2022-01-18 11:20:40,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:40,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:40,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:40,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:40,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:40,130 INFO L87 Difference]: Start difference. First operand 5335 states and 14041 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:42,207 INFO L93 Difference]: Finished difference Result 10137 states and 26749 transitions. [2022-01-18 11:20:42,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:20:42,208 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:42,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:42,218 INFO L225 Difference]: With dead ends: 10137 [2022-01-18 11:20:42,218 INFO L226 Difference]: Without dead ends: 9866 [2022-01-18 11:20:42,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=825, Invalid=2835, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:20:42,218 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 862 mSDsluCounter, 6892 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 7190 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:42,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 7190 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:42,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9866 states. [2022-01-18 11:20:42,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9866 to 5327. [2022-01-18 11:20:42,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.632932782576042) internal successors, (14023), 5326 states have internal predecessors, (14023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:42,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14023 transitions. [2022-01-18 11:20:42,283 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14023 transitions. Word has length 135 [2022-01-18 11:20:42,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:42,284 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14023 transitions. [2022-01-18 11:20:42,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:42,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14023 transitions. [2022-01-18 11:20:42,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:42,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:42,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:42,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 11:20:42,289 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:42,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:42,289 INFO L85 PathProgramCache]: Analyzing trace with hash 455007961, now seen corresponding path program 60 times [2022-01-18 11:20:42,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:42,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336523869] [2022-01-18 11:20:42,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:42,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:42,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:42,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336523869] [2022-01-18 11:20:42,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336523869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:42,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:42,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:42,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649132732] [2022-01-18 11:20:42,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:42,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:42,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:42,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:42,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:42,640 INFO L87 Difference]: Start difference. First operand 5327 states and 14023 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:44,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:44,841 INFO L93 Difference]: Finished difference Result 10307 states and 27187 transitions. [2022-01-18 11:20:44,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:20:44,842 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:44,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:44,855 INFO L225 Difference]: With dead ends: 10307 [2022-01-18 11:20:44,855 INFO L226 Difference]: Without dead ends: 10010 [2022-01-18 11:20:44,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=926, Invalid=3364, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:20:44,856 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 937 mSDsluCounter, 7139 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 7413 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:44,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 7413 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:44,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10010 states. [2022-01-18 11:20:44,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10010 to 5331. [2022-01-18 11:20:44,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6322701688555346) internal successors, (14030), 5330 states have internal predecessors, (14030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:44,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14030 transitions. [2022-01-18 11:20:44,934 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14030 transitions. Word has length 135 [2022-01-18 11:20:44,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:44,934 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14030 transitions. [2022-01-18 11:20:44,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:44,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14030 transitions. [2022-01-18 11:20:44,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:44,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:44,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:44,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 11:20:44,939 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:44,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:44,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1961569819, now seen corresponding path program 61 times [2022-01-18 11:20:44,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:44,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225084614] [2022-01-18 11:20:44,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:44,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:45,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:45,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225084614] [2022-01-18 11:20:45,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225084614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:45,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:45,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:45,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107411486] [2022-01-18 11:20:45,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:45,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:45,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:45,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:45,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:45,300 INFO L87 Difference]: Start difference. First operand 5331 states and 14030 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:47,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:47,327 INFO L93 Difference]: Finished difference Result 10191 states and 26889 transitions. [2022-01-18 11:20:47,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:20:47,327 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:47,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:47,338 INFO L225 Difference]: With dead ends: 10191 [2022-01-18 11:20:47,338 INFO L226 Difference]: Without dead ends: 9925 [2022-01-18 11:20:47,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=785, Invalid=2875, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:20:47,339 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 865 mSDsluCounter, 7396 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 7676 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:47,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [865 Valid, 7676 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1467 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:47,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9925 states. [2022-01-18 11:20:47,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9925 to 5335. [2022-01-18 11:20:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6316085489313834) internal successors, (14037), 5334 states have internal predecessors, (14037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:47,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14037 transitions. [2022-01-18 11:20:47,409 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14037 transitions. Word has length 135 [2022-01-18 11:20:47,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:47,409 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14037 transitions. [2022-01-18 11:20:47,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:47,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14037 transitions. [2022-01-18 11:20:47,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:47,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:47,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:47,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 11:20:47,414 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:47,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:47,415 INFO L85 PathProgramCache]: Analyzing trace with hash 164549005, now seen corresponding path program 62 times [2022-01-18 11:20:47,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:47,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762148802] [2022-01-18 11:20:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:47,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:47,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:47,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762148802] [2022-01-18 11:20:47,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762148802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:47,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:47,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:47,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079437913] [2022-01-18 11:20:47,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:47,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:47,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:47,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:47,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:47,769 INFO L87 Difference]: Start difference. First operand 5335 states and 14037 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:49,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:49,770 INFO L93 Difference]: Finished difference Result 10137 states and 26745 transitions. [2022-01-18 11:20:49,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:20:49,770 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:49,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:49,783 INFO L225 Difference]: With dead ends: 10137 [2022-01-18 11:20:49,783 INFO L226 Difference]: Without dead ends: 9862 [2022-01-18 11:20:49,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=795, Invalid=2745, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:20:49,783 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 848 mSDsluCounter, 7257 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 7546 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:49,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [848 Valid, 7546 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9862 states. [2022-01-18 11:20:49,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9862 to 5323. [2022-01-18 11:20:49,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6328447951897784) internal successors, (14012), 5322 states have internal predecessors, (14012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:49,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 14012 transitions. [2022-01-18 11:20:49,858 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 14012 transitions. Word has length 135 [2022-01-18 11:20:49,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:49,858 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 14012 transitions. [2022-01-18 11:20:49,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:49,858 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 14012 transitions. [2022-01-18 11:20:49,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:49,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:49,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:49,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 11:20:49,863 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:49,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:49,863 INFO L85 PathProgramCache]: Analyzing trace with hash -454757047, now seen corresponding path program 63 times [2022-01-18 11:20:49,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:49,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467866100] [2022-01-18 11:20:49,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:49,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:50,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:50,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467866100] [2022-01-18 11:20:50,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467866100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:50,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:50,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:50,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278246012] [2022-01-18 11:20:50,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:50,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:50,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:50,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:50,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:50,213 INFO L87 Difference]: Start difference. First operand 5323 states and 14012 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:52,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:52,758 INFO L93 Difference]: Finished difference Result 10474 states and 27615 transitions. [2022-01-18 11:20:52,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:20:52,758 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:52,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:52,769 INFO L225 Difference]: With dead ends: 10474 [2022-01-18 11:20:52,769 INFO L226 Difference]: Without dead ends: 10084 [2022-01-18 11:20:52,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1120, Invalid=3992, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:20:52,770 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1007 mSDsluCounter, 7247 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 7516 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:52,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1007 Valid, 7516 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:52,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10084 states. [2022-01-18 11:20:52,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10084 to 5335. [2022-01-18 11:20:52,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6308586426696663) internal successors, (14033), 5334 states have internal predecessors, (14033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14033 transitions. [2022-01-18 11:20:52,843 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14033 transitions. Word has length 135 [2022-01-18 11:20:52,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:52,843 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14033 transitions. [2022-01-18 11:20:52,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:52,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14033 transitions. [2022-01-18 11:20:52,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:52,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:52,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:52,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 11:20:52,848 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:52,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:52,849 INFO L85 PathProgramCache]: Analyzing trace with hash -848222083, now seen corresponding path program 64 times [2022-01-18 11:20:52,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:52,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522857755] [2022-01-18 11:20:52,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:52,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:53,222 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 11:20:53,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:53,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522857755] [2022-01-18 11:20:53,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522857755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:53,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:53,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:53,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373435557] [2022-01-18 11:20:53,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:53,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:53,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:53,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:53,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:53,224 INFO L87 Difference]: Start difference. First operand 5335 states and 14033 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:55,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:55,484 INFO L93 Difference]: Finished difference Result 10323 states and 27219 transitions. [2022-01-18 11:20:55,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:20:55,484 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:55,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:55,497 INFO L225 Difference]: With dead ends: 10323 [2022-01-18 11:20:55,497 INFO L226 Difference]: Without dead ends: 10026 [2022-01-18 11:20:55,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=950, Invalid=3472, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:20:55,498 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 935 mSDsluCounter, 7132 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 7410 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:55,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [935 Valid, 7410 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:55,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10026 states. [2022-01-18 11:20:55,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10026 to 5339. [2022-01-18 11:20:55,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.630198576245785) internal successors, (14040), 5338 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:55,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 14040 transitions. [2022-01-18 11:20:55,576 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 14040 transitions. Word has length 135 [2022-01-18 11:20:55,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:55,576 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 14040 transitions. [2022-01-18 11:20:55,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:55,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 14040 transitions. [2022-01-18 11:20:55,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:55,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:55,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:55,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 11:20:55,581 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:55,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:55,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1030167433, now seen corresponding path program 65 times [2022-01-18 11:20:55,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:55,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69945496] [2022-01-18 11:20:55,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:55,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:55,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:55,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69945496] [2022-01-18 11:20:55,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69945496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:55,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:55,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:55,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615134811] [2022-01-18 11:20:55,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:55,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:55,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:55,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:55,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:55,941 INFO L87 Difference]: Start difference. First operand 5339 states and 14040 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:57,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:20:57,934 INFO L93 Difference]: Finished difference Result 10207 states and 26921 transitions. [2022-01-18 11:20:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:20:57,935 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:20:57,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:20:57,946 INFO L225 Difference]: With dead ends: 10207 [2022-01-18 11:20:57,946 INFO L226 Difference]: Without dead ends: 9941 [2022-01-18 11:20:57,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=780, Invalid=2880, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:20:57,947 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 874 mSDsluCounter, 6988 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 7273 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:20:57,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [874 Valid, 7273 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:20:57,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9941 states. [2022-01-18 11:20:58,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9941 to 5343. [2022-01-18 11:20:58,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.629539498315238) internal successors, (14047), 5342 states have internal predecessors, (14047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:58,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 14047 transitions. [2022-01-18 11:20:58,022 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 14047 transitions. Word has length 135 [2022-01-18 11:20:58,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:20:58,022 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 14047 transitions. [2022-01-18 11:20:58,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:20:58,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 14047 transitions. [2022-01-18 11:20:58,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:20:58,027 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:20:58,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:20:58,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 11:20:58,027 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:20:58,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:20:58,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1138681039, now seen corresponding path program 66 times [2022-01-18 11:20:58,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:20:58,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541282073] [2022-01-18 11:20:58,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:20:58,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:20:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:20:58,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:20:58,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:20:58,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541282073] [2022-01-18 11:20:58,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541282073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:20:58,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:20:58,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:20:58,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000872386] [2022-01-18 11:20:58,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:20:58,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:20:58,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:20:58,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:20:58,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:20:58,369 INFO L87 Difference]: Start difference. First operand 5343 states and 14047 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:00,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:00,337 INFO L93 Difference]: Finished difference Result 10145 states and 26755 transitions. [2022-01-18 11:21:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:21:00,338 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:00,351 INFO L225 Difference]: With dead ends: 10145 [2022-01-18 11:21:00,351 INFO L226 Difference]: Without dead ends: 9850 [2022-01-18 11:21:00,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=767, Invalid=2655, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:21:00,352 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 856 mSDsluCounter, 7238 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 7525 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:00,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [856 Valid, 7525 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:00,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9850 states. [2022-01-18 11:21:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9850 to 5311. [2022-01-18 11:21:00,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.632580037664783) internal successors, (13979), 5310 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:00,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13979 transitions. [2022-01-18 11:21:00,436 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13979 transitions. Word has length 135 [2022-01-18 11:21:00,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:00,436 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13979 transitions. [2022-01-18 11:21:00,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:00,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13979 transitions. [2022-01-18 11:21:00,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:00,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:00,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:00,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 11:21:00,442 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:00,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash 344923383, now seen corresponding path program 67 times [2022-01-18 11:21:00,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:00,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508863343] [2022-01-18 11:21:00,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:00,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:00,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:00,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:00,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508863343] [2022-01-18 11:21:00,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508863343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:00,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:00,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:00,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180673139] [2022-01-18 11:21:00,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:00,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:00,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:00,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:00,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:00,817 INFO L87 Difference]: Start difference. First operand 5311 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:03,645 INFO L93 Difference]: Finished difference Result 10716 states and 28165 transitions. [2022-01-18 11:21:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:21:03,646 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:03,658 INFO L225 Difference]: With dead ends: 10716 [2022-01-18 11:21:03,658 INFO L226 Difference]: Without dead ends: 10295 [2022-01-18 11:21:03,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1295, Invalid=4405, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:21:03,659 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1239 mSDsluCounter, 7393 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 7657 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:03,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 7657 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:03,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2022-01-18 11:21:03,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5315. [2022-01-18 11:21:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6319156943921715) internal successors, (13986), 5314 states have internal predecessors, (13986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:03,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13986 transitions. [2022-01-18 11:21:03,736 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13986 transitions. Word has length 135 [2022-01-18 11:21:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:03,736 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13986 transitions. [2022-01-18 11:21:03,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13986 transitions. [2022-01-18 11:21:03,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:03,741 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:03,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:03,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 11:21:03,741 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:03,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:03,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1442143521, now seen corresponding path program 68 times [2022-01-18 11:21:03,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:03,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527369515] [2022-01-18 11:21:03,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:03,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:04,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:04,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527369515] [2022-01-18 11:21:04,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527369515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:04,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:04,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:04,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089753701] [2022-01-18 11:21:04,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:04,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:04,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:04,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:04,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:04,082 INFO L87 Difference]: Start difference. First operand 5315 states and 13986 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:06,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:06,662 INFO L93 Difference]: Finished difference Result 10490 states and 27647 transitions. [2022-01-18 11:21:06,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:21:06,662 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:06,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:06,673 INFO L225 Difference]: With dead ends: 10490 [2022-01-18 11:21:06,673 INFO L226 Difference]: Without dead ends: 10100 [2022-01-18 11:21:06,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1138, Invalid=4118, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:21:06,674 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1006 mSDsluCounter, 7285 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 7556 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:06,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1006 Valid, 7556 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:06,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10100 states. [2022-01-18 11:21:06,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10100 to 5327. [2022-01-18 11:21:06,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6299286518963574) internal successors, (14007), 5326 states have internal predecessors, (14007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:06,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14007 transitions. [2022-01-18 11:21:06,742 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14007 transitions. Word has length 135 [2022-01-18 11:21:06,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:06,743 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14007 transitions. [2022-01-18 11:21:06,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:06,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14007 transitions. [2022-01-18 11:21:06,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:06,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:06,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:06,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 11:21:06,748 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:06,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:06,748 INFO L85 PathProgramCache]: Analyzing trace with hash 297047317, now seen corresponding path program 69 times [2022-01-18 11:21:06,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:06,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595583679] [2022-01-18 11:21:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:06,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:07,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:07,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595583679] [2022-01-18 11:21:07,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595583679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:07,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:07,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:07,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861743047] [2022-01-18 11:21:07,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:07,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:07,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:07,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:07,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:07,134 INFO L87 Difference]: Start difference. First operand 5327 states and 14007 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:09,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:09,359 INFO L93 Difference]: Finished difference Result 10339 states and 27251 transitions. [2022-01-18 11:21:09,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:21:09,359 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:09,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:09,372 INFO L225 Difference]: With dead ends: 10339 [2022-01-18 11:21:09,372 INFO L226 Difference]: Without dead ends: 10042 [2022-01-18 11:21:09,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=940, Invalid=3482, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:21:09,373 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 942 mSDsluCounter, 7137 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 7413 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:09,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 7413 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:09,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10042 states. [2022-01-18 11:21:09,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10042 to 5331. [2022-01-18 11:21:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.629268292682927) internal successors, (14014), 5330 states have internal predecessors, (14014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:09,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14014 transitions. [2022-01-18 11:21:09,450 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14014 transitions. Word has length 135 [2022-01-18 11:21:09,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:09,450 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14014 transitions. [2022-01-18 11:21:09,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:09,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14014 transitions. [2022-01-18 11:21:09,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:09,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:09,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:09,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 11:21:09,455 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:09,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:09,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2119530463, now seen corresponding path program 70 times [2022-01-18 11:21:09,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:09,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106542829] [2022-01-18 11:21:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:09,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:09,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:09,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:09,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106542829] [2022-01-18 11:21:09,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106542829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:09,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:09,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:09,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849431567] [2022-01-18 11:21:09,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:09,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:09,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:09,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:09,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:09,867 INFO L87 Difference]: Start difference. First operand 5331 states and 14014 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:11,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:11,877 INFO L93 Difference]: Finished difference Result 10223 states and 26953 transitions. [2022-01-18 11:21:11,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:21:11,878 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:11,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:11,888 INFO L225 Difference]: With dead ends: 10223 [2022-01-18 11:21:11,888 INFO L226 Difference]: Without dead ends: 9957 [2022-01-18 11:21:11,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=774, Invalid=2886, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:21:11,888 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 894 mSDsluCounter, 6993 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 7276 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:11,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [894 Valid, 7276 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:11,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9957 states. [2022-01-18 11:21:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9957 to 5335. [2022-01-18 11:21:11,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6286089238845145) internal successors, (14021), 5334 states have internal predecessors, (14021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14021 transitions. [2022-01-18 11:21:11,956 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14021 transitions. Word has length 135 [2022-01-18 11:21:11,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:11,956 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14021 transitions. [2022-01-18 11:21:11,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:11,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14021 transitions. [2022-01-18 11:21:11,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:11,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:11,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:11,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 11:21:11,961 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:11,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:11,962 INFO L85 PathProgramCache]: Analyzing trace with hash 6588361, now seen corresponding path program 71 times [2022-01-18 11:21:11,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:11,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804311980] [2022-01-18 11:21:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:11,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:12,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:12,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804311980] [2022-01-18 11:21:12,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804311980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:12,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:12,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:12,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486027957] [2022-01-18 11:21:12,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:12,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:12,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:12,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:12,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:12,305 INFO L87 Difference]: Start difference. First operand 5335 states and 14021 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:14,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:14,177 INFO L93 Difference]: Finished difference Result 10137 states and 26729 transitions. [2022-01-18 11:21:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:21:14,177 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:14,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:14,190 INFO L225 Difference]: With dead ends: 10137 [2022-01-18 11:21:14,190 INFO L226 Difference]: Without dead ends: 9846 [2022-01-18 11:21:14,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=741, Invalid=2565, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:21:14,191 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 863 mSDsluCounter, 6860 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 7151 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:14,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [863 Valid, 7151 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:14,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9846 states. [2022-01-18 11:21:14,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9846 to 5307. [2022-01-18 11:21:14,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.632491519035055) internal successors, (13968), 5306 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:14,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13968 transitions. [2022-01-18 11:21:14,266 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13968 transitions. Word has length 135 [2022-01-18 11:21:14,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:14,266 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13968 transitions. [2022-01-18 11:21:14,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:14,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13968 transitions. [2022-01-18 11:21:14,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:14,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:14,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:14,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 11:21:14,271 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:14,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:14,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1345678763, now seen corresponding path program 72 times [2022-01-18 11:21:14,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:14,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476081070] [2022-01-18 11:21:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:14,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:14,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:14,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:14,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476081070] [2022-01-18 11:21:14,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476081070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:14,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:14,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:14,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341228825] [2022-01-18 11:21:14,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:14,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:14,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:14,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:14,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:14,654 INFO L87 Difference]: Start difference. First operand 5307 states and 13968 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:17,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:17,775 INFO L93 Difference]: Finished difference Result 11198 states and 29403 transitions. [2022-01-18 11:21:17,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 11:21:17,775 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:17,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:17,786 INFO L225 Difference]: With dead ends: 11198 [2022-01-18 11:21:17,786 INFO L226 Difference]: Without dead ends: 10374 [2022-01-18 11:21:17,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1445, Invalid=4717, Unknown=0, NotChecked=0, Total=6162 [2022-01-18 11:21:17,787 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1371 mSDsluCounter, 7754 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 8031 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:17,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1371 Valid, 8031 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:17,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10374 states. [2022-01-18 11:21:17,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10374 to 5359. [2022-01-18 11:21:17,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 5358 states have (on average 2.623926838372527) internal successors, (14059), 5358 states have internal predecessors, (14059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 14059 transitions. [2022-01-18 11:21:17,856 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 14059 transitions. Word has length 135 [2022-01-18 11:21:17,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:17,856 INFO L470 AbstractCegarLoop]: Abstraction has 5359 states and 14059 transitions. [2022-01-18 11:21:17,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:17,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 14059 transitions. [2022-01-18 11:21:17,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:17,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:17,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:17,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 11:21:17,861 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:17,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:17,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1167238877, now seen corresponding path program 73 times [2022-01-18 11:21:17,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:17,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999818652] [2022-01-18 11:21:17,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:17,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:18,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:18,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:18,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999818652] [2022-01-18 11:21:18,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999818652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:18,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:18,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:18,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180530514] [2022-01-18 11:21:18,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:18,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:18,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:18,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:18,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:18,239 INFO L87 Difference]: Start difference. First operand 5359 states and 14059 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:21,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:21,008 INFO L93 Difference]: Finished difference Result 10764 states and 28245 transitions. [2022-01-18 11:21:21,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:21:21,008 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:21,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:21,021 INFO L225 Difference]: With dead ends: 10764 [2022-01-18 11:21:21,021 INFO L226 Difference]: Without dead ends: 10343 [2022-01-18 11:21:21,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1280, Invalid=4420, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:21:21,022 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 1229 mSDsluCounter, 7543 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 7815 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:21,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 7815 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:21,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10343 states. [2022-01-18 11:21:21,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10343 to 5363. [2022-01-18 11:21:21,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 5362 states have (on average 2.6232748974263336) internal successors, (14066), 5362 states have internal predecessors, (14066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:21,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 14066 transitions. [2022-01-18 11:21:21,115 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 14066 transitions. Word has length 135 [2022-01-18 11:21:21,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:21,115 INFO L470 AbstractCegarLoop]: Abstraction has 5363 states and 14066 transitions. [2022-01-18 11:21:21,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:21,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 14066 transitions. [2022-01-18 11:21:21,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:21,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:21,120 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] [2022-01-18 11:21:21,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 11:21:21,120 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:21,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:21,120 INFO L85 PathProgramCache]: Analyzing trace with hash -70018739, now seen corresponding path program 74 times [2022-01-18 11:21:21,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:21,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211480156] [2022-01-18 11:21:21,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:21,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:21,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:21,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:21,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211480156] [2022-01-18 11:21:21,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211480156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:21,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:21,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:21,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664550165] [2022-01-18 11:21:21,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:21,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:21,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:21,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:21,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:21,473 INFO L87 Difference]: Start difference. First operand 5363 states and 14066 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:24,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:24,019 INFO L93 Difference]: Finished difference Result 10538 states and 27727 transitions. [2022-01-18 11:21:24,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:21:24,019 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:24,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:24,032 INFO L225 Difference]: With dead ends: 10538 [2022-01-18 11:21:24,032 INFO L226 Difference]: Without dead ends: 10148 [2022-01-18 11:21:24,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1124, Invalid=4132, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:21:24,033 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1006 mSDsluCounter, 7403 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 7678 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:24,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1006 Valid, 7678 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:24,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10148 states. [2022-01-18 11:21:24,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10148 to 5375. [2022-01-18 11:21:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5375 states, 5374 states have (on average 2.6213248976553776) internal successors, (14087), 5374 states have internal predecessors, (14087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:24,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5375 states to 5375 states and 14087 transitions. [2022-01-18 11:21:24,109 INFO L78 Accepts]: Start accepts. Automaton has 5375 states and 14087 transitions. Word has length 135 [2022-01-18 11:21:24,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:24,109 INFO L470 AbstractCegarLoop]: Abstraction has 5375 states and 14087 transitions. [2022-01-18 11:21:24,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:24,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5375 states and 14087 transitions. [2022-01-18 11:21:24,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:24,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:24,115 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] [2022-01-18 11:21:24,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 11:21:24,115 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:24,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:24,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1215114943, now seen corresponding path program 75 times [2022-01-18 11:21:24,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:24,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880842024] [2022-01-18 11:21:24,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:24,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:24,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:24,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880842024] [2022-01-18 11:21:24,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880842024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:24,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:24,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:24,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328341963] [2022-01-18 11:21:24,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:24,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:24,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:24,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:24,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:24,482 INFO L87 Difference]: Start difference. First operand 5375 states and 14087 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:26,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:26,713 INFO L93 Difference]: Finished difference Result 10387 states and 27331 transitions. [2022-01-18 11:21:26,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:21:26,713 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:26,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:26,724 INFO L225 Difference]: With dead ends: 10387 [2022-01-18 11:21:26,724 INFO L226 Difference]: Without dead ends: 10090 [2022-01-18 11:21:26,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=930, Invalid=3492, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:21:26,725 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 952 mSDsluCounter, 7235 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 7517 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:26,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 7517 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:26,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10090 states. [2022-01-18 11:21:26,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10090 to 5379. [2022-01-18 11:21:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 5378 states have (on average 2.620676831535887) internal successors, (14094), 5378 states have internal predecessors, (14094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 14094 transitions. [2022-01-18 11:21:26,794 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 14094 transitions. Word has length 135 [2022-01-18 11:21:26,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:26,794 INFO L470 AbstractCegarLoop]: Abstraction has 5379 states and 14094 transitions. [2022-01-18 11:21:26,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:26,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 14094 transitions. [2022-01-18 11:21:26,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:26,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:26,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:26,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 11:21:26,799 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:26,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:26,799 INFO L85 PathProgramCache]: Analyzing trace with hash 663274573, now seen corresponding path program 76 times [2022-01-18 11:21:26,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:26,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318655928] [2022-01-18 11:21:26,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:26,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:27,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:27,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318655928] [2022-01-18 11:21:27,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318655928] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:27,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:27,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:27,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075104207] [2022-01-18 11:21:27,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:27,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:27,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:27,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:27,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:27,138 INFO L87 Difference]: Start difference. First operand 5379 states and 14094 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:29,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:29,076 INFO L93 Difference]: Finished difference Result 10271 states and 27033 transitions. [2022-01-18 11:21:29,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:21:29,076 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:29,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:29,089 INFO L225 Difference]: With dead ends: 10271 [2022-01-18 11:21:29,089 INFO L226 Difference]: Without dead ends: 10005 [2022-01-18 11:21:29,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=769, Invalid=2891, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:21:29,090 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 890 mSDsluCounter, 7086 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 7375 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:29,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [890 Valid, 7375 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:29,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10005 states. [2022-01-18 11:21:29,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10005 to 5383. [2022-01-18 11:21:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5383 states, 5382 states have (on average 2.620029728725381) internal successors, (14101), 5382 states have internal predecessors, (14101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:29,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5383 states to 5383 states and 14101 transitions. [2022-01-18 11:21:29,167 INFO L78 Accepts]: Start accepts. Automaton has 5383 states and 14101 transitions. Word has length 135 [2022-01-18 11:21:29,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:29,167 INFO L470 AbstractCegarLoop]: Abstraction has 5383 states and 14101 transitions. [2022-01-18 11:21:29,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:29,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5383 states and 14101 transitions. [2022-01-18 11:21:29,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:29,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:29,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:29,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 11:21:29,172 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:29,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:29,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1505573899, now seen corresponding path program 77 times [2022-01-18 11:21:29,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:29,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486449541] [2022-01-18 11:21:29,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:29,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:29,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:29,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:29,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486449541] [2022-01-18 11:21:29,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486449541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:29,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:29,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:29,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431619988] [2022-01-18 11:21:29,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:29,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:29,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:29,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:29,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:29,537 INFO L87 Difference]: Start difference. First operand 5383 states and 14101 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:31,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:31,439 INFO L93 Difference]: Finished difference Result 10185 states and 26809 transitions. [2022-01-18 11:21:31,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:21:31,440 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:31,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:31,450 INFO L225 Difference]: With dead ends: 10185 [2022-01-18 11:21:31,450 INFO L226 Difference]: Without dead ends: 9794 [2022-01-18 11:21:31,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=739, Invalid=2567, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:21:31,450 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 868 mSDsluCounter, 6948 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 7245 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:31,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 7245 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:31,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9794 states. [2022-01-18 11:21:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9794 to 5255. [2022-01-18 11:21:31,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 2.6313285116102016) internal successors, (13825), 5254 states have internal predecessors, (13825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:31,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 13825 transitions. [2022-01-18 11:21:31,517 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 13825 transitions. Word has length 135 [2022-01-18 11:21:31,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:31,517 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 13825 transitions. [2022-01-18 11:21:31,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:31,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 13825 transitions. [2022-01-18 11:21:31,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:31,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:31,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:31,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 11:21:31,522 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:31,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:31,522 INFO L85 PathProgramCache]: Analyzing trace with hash 38246971, now seen corresponding path program 78 times [2022-01-18 11:21:31,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:31,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268009462] [2022-01-18 11:21:31,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:31,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:31,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:31,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:31,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268009462] [2022-01-18 11:21:31,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268009462] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:31,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:31,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:31,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112004346] [2022-01-18 11:21:31,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:31,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:31,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:31,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:31,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:31,876 INFO L87 Difference]: Start difference. First operand 5255 states and 13825 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:35,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:35,243 INFO L93 Difference]: Finished difference Result 11152 states and 29205 transitions. [2022-01-18 11:21:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 11:21:35,243 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:35,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:35,257 INFO L225 Difference]: With dead ends: 11152 [2022-01-18 11:21:35,257 INFO L226 Difference]: Without dead ends: 10297 [2022-01-18 11:21:35,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1167 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1603, Invalid=5039, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:21:35,258 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1502 mSDsluCounter, 8259 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 8516 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:35,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1502 Valid, 8516 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:21:35,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10297 states. [2022-01-18 11:21:35,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10297 to 5259. [2022-01-18 11:21:35,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 2.6306580448839862) internal successors, (13832), 5258 states have internal predecessors, (13832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:35,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 13832 transitions. [2022-01-18 11:21:35,335 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 13832 transitions. Word has length 135 [2022-01-18 11:21:35,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:35,335 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 13832 transitions. [2022-01-18 11:21:35,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:35,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 13832 transitions. [2022-01-18 11:21:35,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:35,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:35,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:35,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 11:21:35,340 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:35,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:35,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1780244575, now seen corresponding path program 79 times [2022-01-18 11:21:35,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:35,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147146882] [2022-01-18 11:21:35,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:35,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:35,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:35,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:35,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147146882] [2022-01-18 11:21:35,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147146882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:35,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:35,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:35,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20490712] [2022-01-18 11:21:35,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:35,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:35,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:35,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:35,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:35,727 INFO L87 Difference]: Start difference. First operand 5259 states and 13832 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:38,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:38,752 INFO L93 Difference]: Finished difference Result 10718 states and 28095 transitions. [2022-01-18 11:21:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 11:21:38,752 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:38,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:38,765 INFO L225 Difference]: With dead ends: 10718 [2022-01-18 11:21:38,765 INFO L226 Difference]: Without dead ends: 9894 [2022-01-18 11:21:38,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1046 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1427, Invalid=4735, Unknown=0, NotChecked=0, Total=6162 [2022-01-18 11:21:38,766 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1324 mSDsluCounter, 7748 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 8025 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:38,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 8025 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:38,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9894 states. [2022-01-18 11:21:38,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9894 to 5311. [2022-01-18 11:21:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.6220338983050846) internal successors, (13923), 5310 states have internal predecessors, (13923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:38,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13923 transitions. [2022-01-18 11:21:38,847 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13923 transitions. Word has length 135 [2022-01-18 11:21:38,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:38,847 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13923 transitions. [2022-01-18 11:21:38,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:38,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13923 transitions. [2022-01-18 11:21:38,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:38,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:38,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:38,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 11:21:38,853 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:38,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:38,853 INFO L85 PathProgramCache]: Analyzing trace with hash 458624833, now seen corresponding path program 80 times [2022-01-18 11:21:38,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:38,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199988692] [2022-01-18 11:21:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:38,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:39,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:39,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:39,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199988692] [2022-01-18 11:21:39,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199988692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:39,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:39,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:39,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318727691] [2022-01-18 11:21:39,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:39,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:39,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:39,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:39,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:39,209 INFO L87 Difference]: Start difference. First operand 5311 states and 13923 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:41,990 INFO L93 Difference]: Finished difference Result 10284 states and 26937 transitions. [2022-01-18 11:21:41,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:21:41,991 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:41,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:42,000 INFO L225 Difference]: With dead ends: 10284 [2022-01-18 11:21:42,000 INFO L226 Difference]: Without dead ends: 9863 [2022-01-18 11:21:42,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1264, Invalid=4436, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:21:42,001 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 1192 mSDsluCounter, 8318 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:42,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1192 Valid, 8568 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:42,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9863 states. [2022-01-18 11:21:42,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9863 to 5315. [2022-01-18 11:21:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6213774934136245) internal successors, (13930), 5314 states have internal predecessors, (13930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:42,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13930 transitions. [2022-01-18 11:21:42,066 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13930 transitions. Word has length 135 [2022-01-18 11:21:42,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:42,067 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13930 transitions. [2022-01-18 11:21:42,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:42,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13930 transitions. [2022-01-18 11:21:42,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:42,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:42,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:42,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 11:21:42,072 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1555844971, now seen corresponding path program 81 times [2022-01-18 11:21:42,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:42,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301126068] [2022-01-18 11:21:42,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:42,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:42,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:42,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301126068] [2022-01-18 11:21:42,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301126068] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:42,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:42,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:42,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373897366] [2022-01-18 11:21:42,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:42,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:42,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:42,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:42,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:42,428 INFO L87 Difference]: Start difference. First operand 5315 states and 13930 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:44,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:44,907 INFO L93 Difference]: Finished difference Result 10082 states and 26477 transitions. [2022-01-18 11:21:44,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:21:44,908 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:44,920 INFO L225 Difference]: With dead ends: 10082 [2022-01-18 11:21:44,920 INFO L226 Difference]: Without dead ends: 9692 [2022-01-18 11:21:44,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1110, Invalid=4146, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:21:44,921 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1004 mSDsluCounter, 7318 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 7591 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:44,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1004 Valid, 7591 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9692 states. [2022-01-18 11:21:44,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9692 to 5327. [2022-01-18 11:21:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6194141945174616) internal successors, (13951), 5326 states have internal predecessors, (13951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:44,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13951 transitions. [2022-01-18 11:21:44,995 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13951 transitions. Word has length 135 [2022-01-18 11:21:44,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:44,995 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13951 transitions. [2022-01-18 11:21:44,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13951 transitions. [2022-01-18 11:21:45,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:45,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:45,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:45,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 11:21:45,000 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:45,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:45,000 INFO L85 PathProgramCache]: Analyzing trace with hash 410748767, now seen corresponding path program 82 times [2022-01-18 11:21:45,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:45,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738643507] [2022-01-18 11:21:45,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:45,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:45,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:45,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:45,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738643507] [2022-01-18 11:21:45,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738643507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:45,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:45,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:45,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715128160] [2022-01-18 11:21:45,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:45,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:45,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:45,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:45,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:45,339 INFO L87 Difference]: Start difference. First operand 5327 states and 13951 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:47,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:47,541 INFO L93 Difference]: Finished difference Result 9939 states and 26103 transitions. [2022-01-18 11:21:47,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:21:47,542 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:47,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:47,553 INFO L225 Difference]: With dead ends: 9939 [2022-01-18 11:21:47,553 INFO L226 Difference]: Without dead ends: 9642 [2022-01-18 11:21:47,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=920, Invalid=3502, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:21:47,554 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 917 mSDsluCounter, 7213 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 7487 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:47,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 7487 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:47,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9642 states. [2022-01-18 11:21:47,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9642 to 5331. [2022-01-18 11:21:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6187617260787994) internal successors, (13958), 5330 states have internal predecessors, (13958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:47,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13958 transitions. [2022-01-18 11:21:47,625 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13958 transitions. Word has length 135 [2022-01-18 11:21:47,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:47,625 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13958 transitions. [2022-01-18 11:21:47,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:47,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13958 transitions. [2022-01-18 11:21:47,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:47,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:47,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:47,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 11:21:47,630 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:47,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:47,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2005829013, now seen corresponding path program 83 times [2022-01-18 11:21:47,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:47,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676162616] [2022-01-18 11:21:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:47,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:47,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:47,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676162616] [2022-01-18 11:21:47,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676162616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:47,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:47,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:47,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324126459] [2022-01-18 11:21:47,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:47,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:47,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:47,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:47,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:47,981 INFO L87 Difference]: Start difference. First operand 5331 states and 13958 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:49,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:49,886 INFO L93 Difference]: Finished difference Result 9839 states and 25849 transitions. [2022-01-18 11:21:49,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:21:49,886 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:49,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:49,899 INFO L225 Difference]: With dead ends: 9839 [2022-01-18 11:21:49,899 INFO L226 Difference]: Without dead ends: 9573 [2022-01-18 11:21:49,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=763, Invalid=2897, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:21:49,900 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 869 mSDsluCounter, 7041 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 7324 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:49,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 7324 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:49,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9573 states. [2022-01-18 11:21:49,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9573 to 5335. [2022-01-18 11:21:49,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:49,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-01-18 11:21:49,977 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-01-18 11:21:49,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:49,977 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-01-18 11:21:49,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:49,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-01-18 11:21:49,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:49,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:49,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:49,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 11:21:49,982 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:49,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:49,983 INFO L85 PathProgramCache]: Analyzing trace with hash 120289811, now seen corresponding path program 84 times [2022-01-18 11:21:49,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:49,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842962576] [2022-01-18 11:21:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:49,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:50,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:50,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:50,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842962576] [2022-01-18 11:21:50,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842962576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:50,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:50,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:50,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248397784] [2022-01-18 11:21:50,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:50,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:50,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:50,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:50,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:50,338 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:52,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:52,222 INFO L93 Difference]: Finished difference Result 9705 states and 25501 transitions. [2022-01-18 11:21:52,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:21:52,222 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:52,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:52,234 INFO L225 Difference]: With dead ends: 9705 [2022-01-18 11:21:52,234 INFO L226 Difference]: Without dead ends: 9346 [2022-01-18 11:21:52,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=737, Invalid=2569, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:21:52,235 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 847 mSDsluCounter, 6874 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 7167 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:52,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 7167 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:52,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9346 states. [2022-01-18 11:21:52,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9346 to 5239. [2022-01-18 11:21:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 2.631729667812142) internal successors, (13785), 5238 states have internal predecessors, (13785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:52,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 13785 transitions. [2022-01-18 11:21:52,306 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 13785 transitions. Word has length 135 [2022-01-18 11:21:52,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:52,306 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 13785 transitions. [2022-01-18 11:21:52,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:52,306 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 13785 transitions. [2022-01-18 11:21:52,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:52,311 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:52,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:52,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 11:21:52,311 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:52,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:52,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1239497461, now seen corresponding path program 85 times [2022-01-18 11:21:52,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:52,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381098392] [2022-01-18 11:21:52,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:52,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:52,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:52,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:52,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381098392] [2022-01-18 11:21:52,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381098392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:52,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:52,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:52,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764592306] [2022-01-18 11:21:52,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:52,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:52,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:52,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:52,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:52,715 INFO L87 Difference]: Start difference. First operand 5239 states and 13785 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:55,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:55,012 INFO L93 Difference]: Finished difference Result 9501 states and 25028 transitions. [2022-01-18 11:21:55,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:21:55,013 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:55,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:55,025 INFO L225 Difference]: With dead ends: 9501 [2022-01-18 11:21:55,025 INFO L226 Difference]: Without dead ends: 9210 [2022-01-18 11:21:55,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=938, Invalid=3094, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:21:55,026 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 888 mSDsluCounter, 6917 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 7212 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:55,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [888 Valid, 7212 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:55,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9210 states. [2022-01-18 11:21:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9210 to 5331. [2022-01-18 11:21:55,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.633020637898687) internal successors, (14034), 5330 states have internal predecessors, (14034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:55,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14034 transitions. [2022-01-18 11:21:55,110 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14034 transitions. Word has length 135 [2022-01-18 11:21:55,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:55,110 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14034 transitions. [2022-01-18 11:21:55,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14034 transitions. [2022-01-18 11:21:55,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:55,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:55,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:55,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 11:21:55,116 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:55,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:55,116 INFO L85 PathProgramCache]: Analyzing trace with hash 947791433, now seen corresponding path program 86 times [2022-01-18 11:21:55,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:55,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098970995] [2022-01-18 11:21:55,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:55,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:55,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:55,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:55,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098970995] [2022-01-18 11:21:55,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098970995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:55,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:55,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:55,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985255273] [2022-01-18 11:21:55,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:55,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:55,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:55,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:55,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:55,493 INFO L87 Difference]: Start difference. First operand 5331 states and 14034 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:57,379 INFO L93 Difference]: Finished difference Result 9515 states and 25058 transitions. [2022-01-18 11:21:57,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:21:57,379 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:57,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:57,391 INFO L225 Difference]: With dead ends: 9515 [2022-01-18 11:21:57,391 INFO L226 Difference]: Without dead ends: 9249 [2022-01-18 11:21:57,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=749, Invalid=2791, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:21:57,391 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 859 mSDsluCounter, 7033 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 7316 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:57,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 7316 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:57,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9249 states. [2022-01-18 11:21:57,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9249 to 5335. [2022-01-18 11:21:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.632358455193101) internal successors, (14041), 5334 states have internal predecessors, (14041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:57,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14041 transitions. [2022-01-18 11:21:57,463 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14041 transitions. Word has length 135 [2022-01-18 11:21:57,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:21:57,463 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14041 transitions. [2022-01-18 11:21:57,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:57,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14041 transitions. [2022-01-18 11:21:57,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:21:57,467 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:21:57,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:21:57,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 11:21:57,468 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:21:57,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:21:57,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1221057039, now seen corresponding path program 87 times [2022-01-18 11:21:57,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:21:57,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87466035] [2022-01-18 11:21:57,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:21:57,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:21:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:21:57,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:21:57,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:21:57,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87466035] [2022-01-18 11:21:57,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87466035] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:21:57,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:21:57,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:21:57,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700490477] [2022-01-18 11:21:57,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:21:57,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:21:57,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:21:57,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:21:57,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:21:57,831 INFO L87 Difference]: Start difference. First operand 5335 states and 14041 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:21:59,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:21:59,911 INFO L93 Difference]: Finished difference Result 9477 states and 24958 transitions. [2022-01-18 11:21:59,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:21:59,912 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:21:59,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:21:59,923 INFO L225 Difference]: With dead ends: 9477 [2022-01-18 11:21:59,923 INFO L226 Difference]: Without dead ends: 9206 [2022-01-18 11:21:59,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=823, Invalid=2837, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:21:59,924 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 851 mSDsluCounter, 7289 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 7580 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:21:59,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 7580 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:21:59,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9206 states. [2022-01-18 11:21:59,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9206 to 5327. [2022-01-18 11:22:00,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.632932782576042) internal successors, (14023), 5326 states have internal predecessors, (14023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:00,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14023 transitions. [2022-01-18 11:22:00,009 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14023 transitions. Word has length 135 [2022-01-18 11:22:00,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:00,009 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14023 transitions. [2022-01-18 11:22:00,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:00,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14023 transitions. [2022-01-18 11:22:00,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:00,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:00,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:00,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 11:22:00,015 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:00,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:00,015 INFO L85 PathProgramCache]: Analyzing trace with hash -848276873, now seen corresponding path program 88 times [2022-01-18 11:22:00,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:00,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418426891] [2022-01-18 11:22:00,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:00,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:00,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:00,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418426891] [2022-01-18 11:22:00,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418426891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:00,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:00,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:00,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262595598] [2022-01-18 11:22:00,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:00,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:00,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:00,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:00,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:00,369 INFO L87 Difference]: Start difference. First operand 5327 states and 14023 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:02,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:02,584 INFO L93 Difference]: Finished difference Result 9647 states and 25396 transitions. [2022-01-18 11:22:02,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:22:02,584 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:02,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:02,596 INFO L225 Difference]: With dead ends: 9647 [2022-01-18 11:22:02,596 INFO L226 Difference]: Without dead ends: 9350 [2022-01-18 11:22:02,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=916, Invalid=3374, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:22:02,597 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 914 mSDsluCounter, 7925 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 8184 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:02,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [914 Valid, 8184 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:02,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9350 states. [2022-01-18 11:22:02,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9350 to 5331. [2022-01-18 11:22:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6322701688555346) internal successors, (14030), 5330 states have internal predecessors, (14030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:02,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14030 transitions. [2022-01-18 11:22:02,682 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14030 transitions. Word has length 135 [2022-01-18 11:22:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:02,682 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14030 transitions. [2022-01-18 11:22:02,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14030 transitions. [2022-01-18 11:22:02,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:02,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:02,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:02,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 11:22:02,688 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:02,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:02,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1030112643, now seen corresponding path program 89 times [2022-01-18 11:22:02,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:02,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741758700] [2022-01-18 11:22:02,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:02,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:03,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:03,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:03,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741758700] [2022-01-18 11:22:03,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741758700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:03,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:03,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:03,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842489736] [2022-01-18 11:22:03,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:03,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:03,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:03,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:03,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:03,030 INFO L87 Difference]: Start difference. First operand 5331 states and 14030 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:05,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:05,014 INFO L93 Difference]: Finished difference Result 9531 states and 25098 transitions. [2022-01-18 11:22:05,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:22:05,019 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:05,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:05,031 INFO L225 Difference]: With dead ends: 9531 [2022-01-18 11:22:05,032 INFO L226 Difference]: Without dead ends: 9265 [2022-01-18 11:22:05,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=779, Invalid=2881, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:22:05,032 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 854 mSDsluCounter, 7797 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 8069 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:05,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [854 Valid, 8069 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:05,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9265 states. [2022-01-18 11:22:05,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9265 to 5335. [2022-01-18 11:22:05,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6316085489313834) internal successors, (14037), 5334 states have internal predecessors, (14037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:05,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14037 transitions. [2022-01-18 11:22:05,107 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14037 transitions. Word has length 135 [2022-01-18 11:22:05,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:05,107 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14037 transitions. [2022-01-18 11:22:05,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:05,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14037 transitions. [2022-01-18 11:22:05,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:05,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:05,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:05,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 11:22:05,112 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:05,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:05,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1138735829, now seen corresponding path program 90 times [2022-01-18 11:22:05,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:05,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736789513] [2022-01-18 11:22:05,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:05,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:05,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:05,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736789513] [2022-01-18 11:22:05,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736789513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:05,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:05,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:05,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428760307] [2022-01-18 11:22:05,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:05,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:05,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:05,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:05,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:05,469 INFO L87 Difference]: Start difference. First operand 5335 states and 14037 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:07,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:07,459 INFO L93 Difference]: Finished difference Result 9477 states and 24954 transitions. [2022-01-18 11:22:07,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:22:07,459 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:07,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:07,470 INFO L225 Difference]: With dead ends: 9477 [2022-01-18 11:22:07,470 INFO L226 Difference]: Without dead ends: 9202 [2022-01-18 11:22:07,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=793, Invalid=2747, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:22:07,471 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 846 mSDsluCounter, 7266 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 7554 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:07,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [846 Valid, 7554 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:07,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9202 states. [2022-01-18 11:22:07,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9202 to 5323. [2022-01-18 11:22:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6328447951897784) internal successors, (14012), 5322 states have internal predecessors, (14012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:07,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 14012 transitions. [2022-01-18 11:22:07,540 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 14012 transitions. Word has length 135 [2022-01-18 11:22:07,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:07,540 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 14012 transitions. [2022-01-18 11:22:07,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:07,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 14012 transitions. [2022-01-18 11:22:07,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:07,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:07,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:07,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 11:22:07,545 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:07,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:07,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1758041881, now seen corresponding path program 91 times [2022-01-18 11:22:07,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:07,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31477995] [2022-01-18 11:22:07,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:07,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:07,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:07,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:07,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31477995] [2022-01-18 11:22:07,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31477995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:07,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:07,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:07,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515415039] [2022-01-18 11:22:07,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:07,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:07,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:07,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:07,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:07,889 INFO L87 Difference]: Start difference. First operand 5323 states and 14012 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:10,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:10,394 INFO L93 Difference]: Finished difference Result 9814 states and 25824 transitions. [2022-01-18 11:22:10,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:22:10,395 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:10,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:10,406 INFO L225 Difference]: With dead ends: 9814 [2022-01-18 11:22:10,406 INFO L226 Difference]: Without dead ends: 9424 [2022-01-18 11:22:10,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1106, Invalid=4006, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:22:10,407 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 993 mSDsluCounter, 7668 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 7927 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:10,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [993 Valid, 7927 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:10,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2022-01-18 11:22:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 5335. [2022-01-18 11:22:10,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6308586426696663) internal successors, (14033), 5334 states have internal predecessors, (14033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:10,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14033 transitions. [2022-01-18 11:22:10,494 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14033 transitions. Word has length 135 [2022-01-18 11:22:10,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:10,494 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14033 transitions. [2022-01-18 11:22:10,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14033 transitions. [2022-01-18 11:22:10,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:10,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:10,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:10,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 11:22:10,499 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:10,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:10,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2143460379, now seen corresponding path program 92 times [2022-01-18 11:22:10,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:10,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672569555] [2022-01-18 11:22:10,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:10,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:10,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:10,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672569555] [2022-01-18 11:22:10,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672569555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:10,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:10,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:10,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360532531] [2022-01-18 11:22:10,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:10,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:10,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:10,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:10,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:10,837 INFO L87 Difference]: Start difference. First operand 5335 states and 14033 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:13,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:13,071 INFO L93 Difference]: Finished difference Result 9663 states and 25428 transitions. [2022-01-18 11:22:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:22:13,071 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:13,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:13,083 INFO L225 Difference]: With dead ends: 9663 [2022-01-18 11:22:13,083 INFO L226 Difference]: Without dead ends: 9366 [2022-01-18 11:22:13,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=940, Invalid=3482, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:22:13,084 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 933 mSDsluCounter, 7142 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 7419 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:13,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 7419 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:13,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9366 states. [2022-01-18 11:22:13,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9366 to 5339. [2022-01-18 11:22:13,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.630198576245785) internal successors, (14040), 5338 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:13,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 14040 transitions. [2022-01-18 11:22:13,158 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 14040 transitions. Word has length 135 [2022-01-18 11:22:13,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:13,158 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 14040 transitions. [2022-01-18 11:22:13,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:13,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 14040 transitions. [2022-01-18 11:22:13,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:13,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:13,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:13,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 11:22:13,163 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:13,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:13,164 INFO L85 PathProgramCache]: Analyzing trace with hash -273117401, now seen corresponding path program 93 times [2022-01-18 11:22:13,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:13,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859730582] [2022-01-18 11:22:13,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:13,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:13,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:13,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:13,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859730582] [2022-01-18 11:22:13,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859730582] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:13,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:13,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:13,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240450694] [2022-01-18 11:22:13,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:13,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:13,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:13,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:13,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:13,511 INFO L87 Difference]: Start difference. First operand 5339 states and 14040 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:15,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:15,518 INFO L93 Difference]: Finished difference Result 9547 states and 25130 transitions. [2022-01-18 11:22:15,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:22:15,519 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:15,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:15,528 INFO L225 Difference]: With dead ends: 9547 [2022-01-18 11:22:15,528 INFO L226 Difference]: Without dead ends: 9281 [2022-01-18 11:22:15,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=774, Invalid=2886, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:22:15,529 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 860 mSDsluCounter, 7410 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 7685 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:15,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [860 Valid, 7685 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:15,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9281 states. [2022-01-18 11:22:15,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9281 to 5343. [2022-01-18 11:22:15,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.629539498315238) internal successors, (14047), 5342 states have internal predecessors, (14047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:15,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 14047 transitions. [2022-01-18 11:22:15,591 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 14047 transitions. Word has length 135 [2022-01-18 11:22:15,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:15,591 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 14047 transitions. [2022-01-18 11:22:15,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:15,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 14047 transitions. [2022-01-18 11:22:15,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:15,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:15,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:15,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 11:22:15,596 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:15,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:15,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1853001423, now seen corresponding path program 94 times [2022-01-18 11:22:15,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:15,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118536968] [2022-01-18 11:22:15,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:15,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:15,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:15,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:15,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118536968] [2022-01-18 11:22:15,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118536968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:15,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:15,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:15,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242841980] [2022-01-18 11:22:15,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:15,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:15,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:15,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:15,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:15,994 INFO L87 Difference]: Start difference. First operand 5343 states and 14047 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:18,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:18,000 INFO L93 Difference]: Finished difference Result 9485 states and 24964 transitions. [2022-01-18 11:22:18,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:22:18,001 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:18,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:18,012 INFO L225 Difference]: With dead ends: 9485 [2022-01-18 11:22:18,012 INFO L226 Difference]: Without dead ends: 9190 [2022-01-18 11:22:18,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=764, Invalid=2658, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:22:18,013 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 845 mSDsluCounter, 7632 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 7912 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:18,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 7912 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:18,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9190 states. [2022-01-18 11:22:18,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9190 to 5311. [2022-01-18 11:22:18,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.632580037664783) internal successors, (13979), 5310 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:18,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13979 transitions. [2022-01-18 11:22:18,084 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13979 transitions. Word has length 135 [2022-01-18 11:22:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:18,084 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13979 transitions. [2022-01-18 11:22:18,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13979 transitions. [2022-01-18 11:22:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:18,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:18,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:18,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 11:22:18,089 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:18,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:18,089 INFO L85 PathProgramCache]: Analyzing trace with hash -958361451, now seen corresponding path program 95 times [2022-01-18 11:22:18,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:18,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596131299] [2022-01-18 11:22:18,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:18,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:18,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:18,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596131299] [2022-01-18 11:22:18,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596131299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:18,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:18,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:18,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108455594] [2022-01-18 11:22:18,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:18,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:18,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:18,439 INFO L87 Difference]: Start difference. First operand 5311 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:21,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:21,198 INFO L93 Difference]: Finished difference Result 10056 states and 26374 transitions. [2022-01-18 11:22:21,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:22:21,198 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:21,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:21,208 INFO L225 Difference]: With dead ends: 10056 [2022-01-18 11:22:21,208 INFO L226 Difference]: Without dead ends: 9635 [2022-01-18 11:22:21,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1280, Invalid=4420, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:22:21,209 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1234 mSDsluCounter, 7401 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 7664 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:21,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 7664 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:21,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-01-18 11:22:21,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 5315. [2022-01-18 11:22:21,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6319156943921715) internal successors, (13986), 5314 states have internal predecessors, (13986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13986 transitions. [2022-01-18 11:22:21,276 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13986 transitions. Word has length 135 [2022-01-18 11:22:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:21,276 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13986 transitions. [2022-01-18 11:22:21,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:21,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13986 transitions. [2022-01-18 11:22:21,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:21,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:21,281 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] [2022-01-18 11:22:21,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 11:22:21,281 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash 138858687, now seen corresponding path program 96 times [2022-01-18 11:22:21,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:21,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876033729] [2022-01-18 11:22:21,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:21,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:21,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:21,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876033729] [2022-01-18 11:22:21,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876033729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:21,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:21,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:21,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59146810] [2022-01-18 11:22:21,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:21,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:21,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:21,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:21,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:21,632 INFO L87 Difference]: Start difference. First operand 5315 states and 13986 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:24,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:24,137 INFO L93 Difference]: Finished difference Result 9830 states and 25856 transitions. [2022-01-18 11:22:24,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:22:24,138 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:24,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:24,151 INFO L225 Difference]: With dead ends: 9830 [2022-01-18 11:22:24,151 INFO L226 Difference]: Without dead ends: 9440 [2022-01-18 11:22:24,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1124, Invalid=4132, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:22:24,152 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1001 mSDsluCounter, 7298 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 7568 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:24,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1001 Valid, 7568 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:24,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9440 states. [2022-01-18 11:22:24,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9440 to 5327. [2022-01-18 11:22:24,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6299286518963574) internal successors, (14007), 5326 states have internal predecessors, (14007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:24,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14007 transitions. [2022-01-18 11:22:24,225 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14007 transitions. Word has length 135 [2022-01-18 11:22:24,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:24,225 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14007 transitions. [2022-01-18 11:22:24,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14007 transitions. [2022-01-18 11:22:24,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:24,230 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:24,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:24,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 11:22:24,230 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:24,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:24,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1006237517, now seen corresponding path program 97 times [2022-01-18 11:22:24,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:24,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053284167] [2022-01-18 11:22:24,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:24,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:24,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:24,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053284167] [2022-01-18 11:22:24,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053284167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:24,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:24,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:24,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204761437] [2022-01-18 11:22:24,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:24,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:24,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:24,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:24,575 INFO L87 Difference]: Start difference. First operand 5327 states and 14007 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:26,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:26,780 INFO L93 Difference]: Finished difference Result 9679 states and 25460 transitions. [2022-01-18 11:22:26,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:22:26,780 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:26,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:26,791 INFO L225 Difference]: With dead ends: 9679 [2022-01-18 11:22:26,791 INFO L226 Difference]: Without dead ends: 9382 [2022-01-18 11:22:26,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=930, Invalid=3492, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:22:26,792 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 940 mSDsluCounter, 7546 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 7813 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:26,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [940 Valid, 7813 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9382 states. [2022-01-18 11:22:26,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9382 to 5331. [2022-01-18 11:22:26,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.629268292682927) internal successors, (14014), 5330 states have internal predecessors, (14014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:26,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14014 transitions. [2022-01-18 11:22:26,869 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14014 transitions. Word has length 135 [2022-01-18 11:22:26,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:26,869 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14014 transitions. [2022-01-18 11:22:26,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:26,870 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14014 transitions. [2022-01-18 11:22:26,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:26,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:26,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:26,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 11:22:26,875 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:26,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:26,875 INFO L85 PathProgramCache]: Analyzing trace with hash 872151999, now seen corresponding path program 98 times [2022-01-18 11:22:26,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:26,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114193407] [2022-01-18 11:22:26,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:26,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:27,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:27,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114193407] [2022-01-18 11:22:27,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114193407] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:27,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:27,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:27,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833114902] [2022-01-18 11:22:27,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:27,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:27,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:27,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:27,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:27,228 INFO L87 Difference]: Start difference. First operand 5331 states and 14014 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:29,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:29,174 INFO L93 Difference]: Finished difference Result 9563 states and 25162 transitions. [2022-01-18 11:22:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:22:29,174 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:29,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:29,186 INFO L225 Difference]: With dead ends: 9563 [2022-01-18 11:22:29,186 INFO L226 Difference]: Without dead ends: 9297 [2022-01-18 11:22:29,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=769, Invalid=2891, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:22:29,186 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 880 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 7667 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:29,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 7667 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:29,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9297 states. [2022-01-18 11:22:29,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9297 to 5335. [2022-01-18 11:22:29,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6286089238845145) internal successors, (14021), 5334 states have internal predecessors, (14021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14021 transitions. [2022-01-18 11:22:29,259 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14021 transitions. Word has length 135 [2022-01-18 11:22:29,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:29,259 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14021 transitions. [2022-01-18 11:22:29,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:29,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14021 transitions. [2022-01-18 11:22:29,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:29,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:29,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:29,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 11:22:29,264 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:29,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:29,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1296696473, now seen corresponding path program 99 times [2022-01-18 11:22:29,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:29,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116181172] [2022-01-18 11:22:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:29,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:29,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:29,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116181172] [2022-01-18 11:22:29,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116181172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:29,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:29,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:29,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147105010] [2022-01-18 11:22:29,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:29,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:29,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:29,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:29,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:29,609 INFO L87 Difference]: Start difference. First operand 5335 states and 14021 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:31,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:31,470 INFO L93 Difference]: Finished difference Result 9477 states and 24938 transitions. [2022-01-18 11:22:31,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:22:31,470 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:31,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:31,480 INFO L225 Difference]: With dead ends: 9477 [2022-01-18 11:22:31,480 INFO L226 Difference]: Without dead ends: 9186 [2022-01-18 11:22:31,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=739, Invalid=2567, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:22:31,481 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 861 mSDsluCounter, 6869 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 7159 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:31,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [861 Valid, 7159 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9186 states. [2022-01-18 11:22:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9186 to 5307. [2022-01-18 11:22:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.632491519035055) internal successors, (13968), 5306 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:31,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13968 transitions. [2022-01-18 11:22:31,548 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13968 transitions. Word has length 135 [2022-01-18 11:22:31,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:31,548 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13968 transitions. [2022-01-18 11:22:31,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:31,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13968 transitions. [2022-01-18 11:22:31,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:31,552 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:31,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:31,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 11:22:31,553 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:31,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:31,553 INFO L85 PathProgramCache]: Analyzing trace with hash 42393929, now seen corresponding path program 100 times [2022-01-18 11:22:31,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:31,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74339519] [2022-01-18 11:22:31,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:31,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:31,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:31,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:31,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74339519] [2022-01-18 11:22:31,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74339519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:31,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:31,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:31,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452244015] [2022-01-18 11:22:31,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:31,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:31,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:31,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:31,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:31,932 INFO L87 Difference]: Start difference. First operand 5307 states and 13968 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:35,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:35,001 INFO L93 Difference]: Finished difference Result 10538 states and 27612 transitions. [2022-01-18 11:22:35,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 11:22:35,001 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:35,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:35,014 INFO L225 Difference]: With dead ends: 10538 [2022-01-18 11:22:35,014 INFO L226 Difference]: Without dead ends: 9714 [2022-01-18 11:22:35,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1046 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1427, Invalid=4735, Unknown=0, NotChecked=0, Total=6162 [2022-01-18 11:22:35,015 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1375 mSDsluCounter, 7773 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 8050 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:35,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 8050 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:35,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9714 states. [2022-01-18 11:22:35,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9714 to 5359. [2022-01-18 11:22:35,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 5358 states have (on average 2.623926838372527) internal successors, (14059), 5358 states have internal predecessors, (14059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:35,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 14059 transitions. [2022-01-18 11:22:35,106 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 14059 transitions. Word has length 135 [2022-01-18 11:22:35,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:35,106 INFO L470 AbstractCegarLoop]: Abstraction has 5359 states and 14059 transitions. [2022-01-18 11:22:35,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:35,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 14059 transitions. [2022-01-18 11:22:35,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:35,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:35,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:35,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 11:22:35,111 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:35,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:35,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1824443585, now seen corresponding path program 101 times [2022-01-18 11:22:35,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:35,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418081464] [2022-01-18 11:22:35,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:35,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:35,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:35,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:35,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418081464] [2022-01-18 11:22:35,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418081464] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:35,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:35,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:35,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504448587] [2022-01-18 11:22:35,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:35,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:35,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:35,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:35,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:35,453 INFO L87 Difference]: Start difference. First operand 5359 states and 14059 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:38,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:38,192 INFO L93 Difference]: Finished difference Result 10104 states and 26454 transitions. [2022-01-18 11:22:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:22:38,192 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:38,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:38,204 INFO L225 Difference]: With dead ends: 10104 [2022-01-18 11:22:38,204 INFO L226 Difference]: Without dead ends: 9683 [2022-01-18 11:22:38,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1264, Invalid=4436, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:22:38,205 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 1218 mSDsluCounter, 7588 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 7858 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:38,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1218 Valid, 7858 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:38,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9683 states. [2022-01-18 11:22:38,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9683 to 5363. [2022-01-18 11:22:38,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 5362 states have (on average 2.6232748974263336) internal successors, (14066), 5362 states have internal predecessors, (14066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 14066 transitions. [2022-01-18 11:22:38,280 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 14066 transitions. Word has length 135 [2022-01-18 11:22:38,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:38,280 INFO L470 AbstractCegarLoop]: Abstraction has 5363 states and 14066 transitions. [2022-01-18 11:22:38,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:38,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 14066 transitions. [2022-01-18 11:22:38,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:38,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:38,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:38,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 11:22:38,285 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:38,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:38,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1373303573, now seen corresponding path program 102 times [2022-01-18 11:22:38,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:38,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870307458] [2022-01-18 11:22:38,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:38,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:38,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:38,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870307458] [2022-01-18 11:22:38,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870307458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:38,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:38,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:38,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75665861] [2022-01-18 11:22:38,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:38,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:38,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:38,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:38,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:38,620 INFO L87 Difference]: Start difference. First operand 5363 states and 14066 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:41,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:41,127 INFO L93 Difference]: Finished difference Result 9878 states and 25936 transitions. [2022-01-18 11:22:41,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:22:41,128 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:41,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:41,137 INFO L225 Difference]: With dead ends: 9878 [2022-01-18 11:22:41,137 INFO L226 Difference]: Without dead ends: 9488 [2022-01-18 11:22:41,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1110, Invalid=4146, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:22:41,138 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1007 mSDsluCounter, 7402 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 7679 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:41,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1007 Valid, 7679 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:41,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9488 states. [2022-01-18 11:22:41,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9488 to 5375. [2022-01-18 11:22:41,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5375 states, 5374 states have (on average 2.6213248976553776) internal successors, (14087), 5374 states have internal predecessors, (14087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:41,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5375 states to 5375 states and 14087 transitions. [2022-01-18 11:22:41,210 INFO L78 Accepts]: Start accepts. Automaton has 5375 states and 14087 transitions. Word has length 135 [2022-01-18 11:22:41,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:41,210 INFO L470 AbstractCegarLoop]: Abstraction has 5375 states and 14087 transitions. [2022-01-18 11:22:41,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:41,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5375 states and 14087 transitions. [2022-01-18 11:22:41,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:41,216 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:41,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:41,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 11:22:41,216 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:41,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:41,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1776567519, now seen corresponding path program 103 times [2022-01-18 11:22:41,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:41,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773506841] [2022-01-18 11:22:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:41,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:41,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:41,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:41,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773506841] [2022-01-18 11:22:41,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773506841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:41,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:41,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:41,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698688516] [2022-01-18 11:22:41,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:41,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:41,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:41,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:41,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:41,563 INFO L87 Difference]: Start difference. First operand 5375 states and 14087 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:43,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:43,784 INFO L93 Difference]: Finished difference Result 9727 states and 25540 transitions. [2022-01-18 11:22:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:22:43,784 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:43,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:43,796 INFO L225 Difference]: With dead ends: 9727 [2022-01-18 11:22:43,797 INFO L226 Difference]: Without dead ends: 9430 [2022-01-18 11:22:43,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=920, Invalid=3502, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:22:43,797 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 938 mSDsluCounter, 7255 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 7537 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:43,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [938 Valid, 7537 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9430 states. [2022-01-18 11:22:43,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9430 to 5379. [2022-01-18 11:22:43,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 5378 states have (on average 2.620676831535887) internal successors, (14094), 5378 states have internal predecessors, (14094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:43,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 14094 transitions. [2022-01-18 11:22:43,883 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 14094 transitions. Word has length 135 [2022-01-18 11:22:43,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:43,884 INFO L470 AbstractCegarLoop]: Abstraction has 5379 states and 14094 transitions. [2022-01-18 11:22:43,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:43,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 14094 transitions. [2022-01-18 11:22:43,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:43,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:43,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:43,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 11:22:43,889 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:43,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:43,889 INFO L85 PathProgramCache]: Analyzing trace with hash -640010261, now seen corresponding path program 104 times [2022-01-18 11:22:43,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:43,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22281604] [2022-01-18 11:22:43,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:43,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:44,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:44,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22281604] [2022-01-18 11:22:44,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22281604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:44,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:44,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:44,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319120275] [2022-01-18 11:22:44,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:44,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:44,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:44,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:44,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:44,255 INFO L87 Difference]: Start difference. First operand 5379 states and 14094 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:46,206 INFO L93 Difference]: Finished difference Result 9611 states and 25242 transitions. [2022-01-18 11:22:46,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:22:46,207 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:46,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:46,217 INFO L225 Difference]: With dead ends: 9611 [2022-01-18 11:22:46,217 INFO L226 Difference]: Without dead ends: 9345 [2022-01-18 11:22:46,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=763, Invalid=2897, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:22:46,218 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 900 mSDsluCounter, 7108 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 7397 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:46,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [900 Valid, 7397 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:46,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9345 states. [2022-01-18 11:22:46,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9345 to 5383. [2022-01-18 11:22:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5383 states, 5382 states have (on average 2.620029728725381) internal successors, (14101), 5382 states have internal predecessors, (14101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5383 states to 5383 states and 14101 transitions. [2022-01-18 11:22:46,299 INFO L78 Accepts]: Start accepts. Automaton has 5383 states and 14101 transitions. Word has length 135 [2022-01-18 11:22:46,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:46,299 INFO L470 AbstractCegarLoop]: Abstraction has 5383 states and 14101 transitions. [2022-01-18 11:22:46,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,300 INFO L276 IsEmpty]: Start isEmpty. Operand 5383 states and 14101 transitions. [2022-01-18 11:22:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:46,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:46,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:46,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 11:22:46,305 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:46,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:46,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1486108563, now seen corresponding path program 105 times [2022-01-18 11:22:46,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:46,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596908061] [2022-01-18 11:22:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:46,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:46,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:46,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596908061] [2022-01-18 11:22:46,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596908061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:46,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:46,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:46,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303092722] [2022-01-18 11:22:46,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:46,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:46,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:46,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:46,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:46,661 INFO L87 Difference]: Start difference. First operand 5383 states and 14101 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:48,435 INFO L93 Difference]: Finished difference Result 9525 states and 25018 transitions. [2022-01-18 11:22:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:22:48,435 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:48,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:48,448 INFO L225 Difference]: With dead ends: 9525 [2022-01-18 11:22:48,448 INFO L226 Difference]: Without dead ends: 9134 [2022-01-18 11:22:48,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=739, Invalid=2567, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:22:48,448 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 863 mSDsluCounter, 6264 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 6567 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:48,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [863 Valid, 6567 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:22:48,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2022-01-18 11:22:48,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 5255. [2022-01-18 11:22:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 2.6313285116102016) internal successors, (13825), 5254 states have internal predecessors, (13825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 13825 transitions. [2022-01-18 11:22:48,530 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 13825 transitions. Word has length 135 [2022-01-18 11:22:48,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:48,530 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 13825 transitions. [2022-01-18 11:22:48,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 13825 transitions. [2022-01-18 11:22:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:48,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:48,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:48,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 11:22:48,536 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1265037863, now seen corresponding path program 106 times [2022-01-18 11:22:48,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:48,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882436988] [2022-01-18 11:22:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:48,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:48,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:48,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:48,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882436988] [2022-01-18 11:22:48,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882436988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:48,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:48,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:48,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576374703] [2022-01-18 11:22:48,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:48,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:48,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:48,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:48,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:48,876 INFO L87 Difference]: Start difference. First operand 5255 states and 13825 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:52,141 INFO L93 Difference]: Finished difference Result 10924 states and 28586 transitions. [2022-01-18 11:22:52,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 11:22:52,142 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:52,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:52,152 INFO L225 Difference]: With dead ends: 10924 [2022-01-18 11:22:52,152 INFO L226 Difference]: Without dead ends: 10069 [2022-01-18 11:22:52,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1584, Invalid=5058, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:22:52,153 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1475 mSDsluCounter, 7885 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 8157 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:52,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1475 Valid, 8157 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:52,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10069 states. [2022-01-18 11:22:52,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10069 to 5259. [2022-01-18 11:22:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 2.6306580448839862) internal successors, (13832), 5258 states have internal predecessors, (13832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 13832 transitions. [2022-01-18 11:22:52,232 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 13832 transitions. Word has length 135 [2022-01-18 11:22:52,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:52,232 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 13832 transitions. [2022-01-18 11:22:52,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 13832 transitions. [2022-01-18 11:22:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:52,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:52,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:52,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 11:22:52,237 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:52,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:52,238 INFO L85 PathProgramCache]: Analyzing trace with hash 476959741, now seen corresponding path program 107 times [2022-01-18 11:22:52,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:52,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806766030] [2022-01-18 11:22:52,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:52,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:52,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:52,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806766030] [2022-01-18 11:22:52,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806766030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:52,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:52,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:52,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385622052] [2022-01-18 11:22:52,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:52,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:52,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:52,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:52,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:52,579 INFO L87 Difference]: Start difference. First operand 5259 states and 13832 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:55,592 INFO L93 Difference]: Finished difference Result 10490 states and 27476 transitions. [2022-01-18 11:22:55,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 11:22:55,593 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:55,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:55,603 INFO L225 Difference]: With dead ends: 10490 [2022-01-18 11:22:55,604 INFO L226 Difference]: Without dead ends: 9666 [2022-01-18 11:22:55,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1410, Invalid=4752, Unknown=0, NotChecked=0, Total=6162 [2022-01-18 11:22:55,604 INFO L933 BasicCegarLoop]: 447 mSDtfsCounter, 1300 mSDsluCounter, 7837 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 8116 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:55,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 8116 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:55,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2022-01-18 11:22:55,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 5311. [2022-01-18 11:22:55,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.6220338983050846) internal successors, (13923), 5310 states have internal predecessors, (13923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13923 transitions. [2022-01-18 11:22:55,680 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13923 transitions. Word has length 135 [2022-01-18 11:22:55,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:55,680 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13923 transitions. [2022-01-18 11:22:55,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13923 transitions. [2022-01-18 11:22:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:55,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:55,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:55,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 11:22:55,685 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:55,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:55,685 INFO L85 PathProgramCache]: Analyzing trace with hash -844660001, now seen corresponding path program 108 times [2022-01-18 11:22:55,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:55,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914763774] [2022-01-18 11:22:55,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:55,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:56,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:56,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914763774] [2022-01-18 11:22:56,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914763774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:56,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:56,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:56,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936749322] [2022-01-18 11:22:56,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:56,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:56,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:56,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:56,018 INFO L87 Difference]: Start difference. First operand 5311 states and 13923 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:58,649 INFO L93 Difference]: Finished difference Result 10056 states and 26318 transitions. [2022-01-18 11:22:58,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:22:58,649 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:22:58,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:58,661 INFO L225 Difference]: With dead ends: 10056 [2022-01-18 11:22:58,662 INFO L226 Difference]: Without dead ends: 9635 [2022-01-18 11:22:58,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1250, Invalid=4450, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:22:58,662 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1196 mSDsluCounter, 7995 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 8257 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:58,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1196 Valid, 8257 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:22:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-01-18 11:22:58,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 5315. [2022-01-18 11:22:58,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6213774934136245) internal successors, (13930), 5314 states have internal predecessors, (13930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13930 transitions. [2022-01-18 11:22:58,738 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13930 transitions. Word has length 135 [2022-01-18 11:22:58,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:58,738 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13930 transitions. [2022-01-18 11:22:58,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13930 transitions. [2022-01-18 11:22:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:22:58,743 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:58,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:58,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 11:22:58,743 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:58,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:58,744 INFO L85 PathProgramCache]: Analyzing trace with hash 252560137, now seen corresponding path program 109 times [2022-01-18 11:22:58,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:58,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267558718] [2022-01-18 11:22:58,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:58,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:59,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:59,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267558718] [2022-01-18 11:22:59,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267558718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:59,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:59,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:22:59,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422297162] [2022-01-18 11:22:59,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:59,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:22:59,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:59,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:22:59,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:59,090 INFO L87 Difference]: Start difference. First operand 5315 states and 13930 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:01,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:01,555 INFO L93 Difference]: Finished difference Result 9830 states and 25800 transitions. [2022-01-18 11:23:01,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:23:01,555 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:01,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:01,566 INFO L225 Difference]: With dead ends: 9830 [2022-01-18 11:23:01,566 INFO L226 Difference]: Without dead ends: 9440 [2022-01-18 11:23:01,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1096, Invalid=4160, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:23:01,567 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 987 mSDsluCounter, 7426 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 7701 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:01,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 7701 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:01,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9440 states. [2022-01-18 11:23:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9440 to 5327. [2022-01-18 11:23:01,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6194141945174616) internal successors, (13951), 5326 states have internal predecessors, (13951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13951 transitions. [2022-01-18 11:23:01,641 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13951 transitions. Word has length 135 [2022-01-18 11:23:01,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:01,641 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13951 transitions. [2022-01-18 11:23:01,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:01,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13951 transitions. [2022-01-18 11:23:01,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:01,646 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:01,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:01,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 11:23:01,647 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:01,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:01,647 INFO L85 PathProgramCache]: Analyzing trace with hash -892536067, now seen corresponding path program 110 times [2022-01-18 11:23:01,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:01,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426194479] [2022-01-18 11:23:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:01,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:01,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:01,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:01,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426194479] [2022-01-18 11:23:01,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426194479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:01,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:01,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:01,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144298234] [2022-01-18 11:23:01,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:01,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:01,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:01,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:01,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:01,990 INFO L87 Difference]: Start difference. First operand 5327 states and 13951 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:04,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:04,181 INFO L93 Difference]: Finished difference Result 9679 states and 25404 transitions. [2022-01-18 11:23:04,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:23:04,181 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:04,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:04,194 INFO L225 Difference]: With dead ends: 9679 [2022-01-18 11:23:04,194 INFO L226 Difference]: Without dead ends: 9382 [2022-01-18 11:23:04,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=910, Invalid=3512, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:23:04,195 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 925 mSDsluCounter, 7279 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:04,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [925 Valid, 7559 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:04,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9382 states. [2022-01-18 11:23:04,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9382 to 5331. [2022-01-18 11:23:04,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6187617260787994) internal successors, (13958), 5330 states have internal predecessors, (13958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13958 transitions. [2022-01-18 11:23:04,279 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13958 transitions. Word has length 135 [2022-01-18 11:23:04,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:04,279 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13958 transitions. [2022-01-18 11:23:04,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:04,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13958 transitions. [2022-01-18 11:23:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:04,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:04,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:04,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 11:23:04,285 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:04,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash 985853449, now seen corresponding path program 111 times [2022-01-18 11:23:04,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:04,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852821894] [2022-01-18 11:23:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:04,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:04,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:04,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:04,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852821894] [2022-01-18 11:23:04,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852821894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:04,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:04,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:04,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715112410] [2022-01-18 11:23:04,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:04,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:04,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:04,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:04,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:04,640 INFO L87 Difference]: Start difference. First operand 5331 states and 13958 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:06,570 INFO L93 Difference]: Finished difference Result 9563 states and 25106 transitions. [2022-01-18 11:23:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:23:06,570 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:06,583 INFO L225 Difference]: With dead ends: 9563 [2022-01-18 11:23:06,583 INFO L226 Difference]: Without dead ends: 9297 [2022-01-18 11:23:06,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=757, Invalid=2903, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:23:06,583 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 855 mSDsluCounter, 7530 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 7810 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:06,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 7810 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:06,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9297 states. [2022-01-18 11:23:06,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9297 to 5335. [2022-01-18 11:23:06,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:06,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-01-18 11:23:06,667 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-01-18 11:23:06,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:06,667 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-01-18 11:23:06,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:06,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-01-18 11:23:06,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:06,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:06,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:06,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 11:23:06,673 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:06,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1182995023, now seen corresponding path program 112 times [2022-01-18 11:23:06,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:06,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347387832] [2022-01-18 11:23:06,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:06,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:07,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:07,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347387832] [2022-01-18 11:23:07,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347387832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:07,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:07,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:07,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066306524] [2022-01-18 11:23:07,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:07,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:07,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:07,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:07,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:07,034 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:08,923 INFO L93 Difference]: Finished difference Result 9477 states and 24882 transitions. [2022-01-18 11:23:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:23:08,923 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:08,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:08,936 INFO L225 Difference]: With dead ends: 9477 [2022-01-18 11:23:08,936 INFO L226 Difference]: Without dead ends: 9130 [2022-01-18 11:23:08,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=735, Invalid=2571, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:23:08,937 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 836 mSDsluCounter, 7382 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 7671 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:08,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 7671 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:08,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9130 states. [2022-01-18 11:23:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9130 to 5251. [2022-01-18 11:23:09,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 2.6312380952380954) internal successors, (13814), 5250 states have internal predecessors, (13814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:09,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 13814 transitions. [2022-01-18 11:23:09,024 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 13814 transitions. Word has length 135 [2022-01-18 11:23:09,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:09,024 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 13814 transitions. [2022-01-18 11:23:09,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 13814 transitions. [2022-01-18 11:23:09,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:09,030 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:09,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:09,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 11:23:09,030 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:09,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:09,030 INFO L85 PathProgramCache]: Analyzing trace with hash -287489867, now seen corresponding path program 113 times [2022-01-18 11:23:09,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:09,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872204661] [2022-01-18 11:23:09,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:09,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:09,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:09,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:09,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872204661] [2022-01-18 11:23:09,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872204661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:09,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:09,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:09,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916186803] [2022-01-18 11:23:09,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:09,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:09,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:09,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:09,402 INFO L87 Difference]: Start difference. First operand 5251 states and 13814 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:12,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:12,926 INFO L93 Difference]: Finished difference Result 9553 states and 25066 transitions. [2022-01-18 11:23:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 11:23:12,926 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:12,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:12,937 INFO L225 Difference]: With dead ends: 9553 [2022-01-18 11:23:12,937 INFO L226 Difference]: Without dead ends: 8605 [2022-01-18 11:23:12,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1747, Invalid=5393, Unknown=0, NotChecked=0, Total=7140 [2022-01-18 11:23:12,939 INFO L933 BasicCegarLoop]: 457 mSDtfsCounter, 1466 mSDsluCounter, 8445 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 8717 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:12,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1466 Valid, 8717 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:12,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8605 states. [2022-01-18 11:23:13,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8605 to 5263. [2022-01-18 11:23:13,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 2.6292284302546562) internal successors, (13835), 5262 states have internal predecessors, (13835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:13,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 13835 transitions. [2022-01-18 11:23:13,020 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 13835 transitions. Word has length 135 [2022-01-18 11:23:13,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:13,020 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 13835 transitions. [2022-01-18 11:23:13,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:13,021 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 13835 transitions. [2022-01-18 11:23:13,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:13,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:13,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:13,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 11:23:13,026 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:13,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:13,026 INFO L85 PathProgramCache]: Analyzing trace with hash -271308559, now seen corresponding path program 114 times [2022-01-18 11:23:13,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:13,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421404870] [2022-01-18 11:23:13,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:13,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:13,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:13,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421404870] [2022-01-18 11:23:13,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421404870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:13,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:13,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:13,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278257703] [2022-01-18 11:23:13,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:13,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:13,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:13,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:13,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:13,373 INFO L87 Difference]: Start difference. First operand 5263 states and 13835 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:16,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:16,645 INFO L93 Difference]: Finished difference Result 10395 states and 27154 transitions. [2022-01-18 11:23:16,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 11:23:16,645 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:16,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:16,655 INFO L225 Difference]: With dead ends: 10395 [2022-01-18 11:23:16,655 INFO L226 Difference]: Without dead ends: 9540 [2022-01-18 11:23:16,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1187 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1564, Invalid=5078, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:23:16,656 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1503 mSDsluCounter, 8411 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:16,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 8672 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:16,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9540 states. [2022-01-18 11:23:16,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9540 to 5267. [2022-01-18 11:23:16,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 2.6285605772882645) internal successors, (13842), 5266 states have internal predecessors, (13842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:16,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 13842 transitions. [2022-01-18 11:23:16,731 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 13842 transitions. Word has length 135 [2022-01-18 11:23:16,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:16,732 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 13842 transitions. [2022-01-18 11:23:16,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:16,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 13842 transitions. [2022-01-18 11:23:16,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:16,737 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:16,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:16,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 11:23:16,737 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:16,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:16,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1470689045, now seen corresponding path program 115 times [2022-01-18 11:23:16,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:16,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003398483] [2022-01-18 11:23:16,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:16,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:17,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:17,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:17,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003398483] [2022-01-18 11:23:17,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003398483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:17,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:17,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:17,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284702929] [2022-01-18 11:23:17,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:17,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:17,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:17,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:17,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:17,084 INFO L87 Difference]: Start difference. First operand 5267 states and 13842 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:20,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:20,046 INFO L93 Difference]: Finished difference Result 9961 states and 26044 transitions. [2022-01-18 11:23:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 11:23:20,047 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:20,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:20,058 INFO L225 Difference]: With dead ends: 9961 [2022-01-18 11:23:20,058 INFO L226 Difference]: Without dead ends: 9137 [2022-01-18 11:23:20,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1064 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1392, Invalid=4770, Unknown=0, NotChecked=0, Total=6162 [2022-01-18 11:23:20,059 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1286 mSDsluCounter, 8454 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 8710 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:20,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1286 Valid, 8710 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9137 states. [2022-01-18 11:23:20,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9137 to 5319. [2022-01-18 11:23:20,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5319 states, 5318 states have (on average 2.619969913501316) internal successors, (13933), 5318 states have internal predecessors, (13933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5319 states to 5319 states and 13933 transitions. [2022-01-18 11:23:20,141 INFO L78 Accepts]: Start accepts. Automaton has 5319 states and 13933 transitions. Word has length 135 [2022-01-18 11:23:20,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:20,141 INFO L470 AbstractCegarLoop]: Abstraction has 5319 states and 13933 transitions. [2022-01-18 11:23:20,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:20,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5319 states and 13933 transitions. [2022-01-18 11:23:20,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:20,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:20,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:20,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 11:23:20,146 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:20,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:20,146 INFO L85 PathProgramCache]: Analyzing trace with hash 149069303, now seen corresponding path program 116 times [2022-01-18 11:23:20,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:20,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693386308] [2022-01-18 11:23:20,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:20,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:20,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:20,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:20,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693386308] [2022-01-18 11:23:20,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693386308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:20,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:20,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:20,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780504481] [2022-01-18 11:23:20,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:20,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:20,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:20,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:20,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:20,499 INFO L87 Difference]: Start difference. First operand 5319 states and 13933 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:23,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:23,160 INFO L93 Difference]: Finished difference Result 9527 states and 24886 transitions. [2022-01-18 11:23:23,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:23:23,161 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:23,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:23,173 INFO L225 Difference]: With dead ends: 9527 [2022-01-18 11:23:23,173 INFO L226 Difference]: Without dead ends: 9106 [2022-01-18 11:23:23,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 952 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1232, Invalid=4468, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:23:23,174 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1192 mSDsluCounter, 7774 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 8031 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:23,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1192 Valid, 8031 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:23,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9106 states. [2022-01-18 11:23:23,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9106 to 5323. [2022-01-18 11:23:23,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.619316046599023) internal successors, (13940), 5322 states have internal predecessors, (13940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:23,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13940 transitions. [2022-01-18 11:23:23,254 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13940 transitions. Word has length 135 [2022-01-18 11:23:23,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:23,254 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13940 transitions. [2022-01-18 11:23:23,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:23,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13940 transitions. [2022-01-18 11:23:23,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:23,259 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:23,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:23,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 11:23:23,259 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:23,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:23,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1246289441, now seen corresponding path program 117 times [2022-01-18 11:23:23,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:23,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947289719] [2022-01-18 11:23:23,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:23,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:23,612 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 11:23:23,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:23,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947289719] [2022-01-18 11:23:23,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947289719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:23,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:23,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:23,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881458816] [2022-01-18 11:23:23,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:23,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:23,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:23,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:23,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:23,613 INFO L87 Difference]: Start difference. First operand 5323 states and 13940 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:26,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:26,059 INFO L93 Difference]: Finished difference Result 9301 states and 24368 transitions. [2022-01-18 11:23:26,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:23:26,059 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:26,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:26,069 INFO L225 Difference]: With dead ends: 9301 [2022-01-18 11:23:26,069 INFO L226 Difference]: Without dead ends: 8911 [2022-01-18 11:23:26,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1082, Invalid=4174, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:23:26,069 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 979 mSDsluCounter, 7608 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 7870 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:26,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 7870 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:26,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8911 states. [2022-01-18 11:23:26,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8911 to 5335. [2022-01-18 11:23:26,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.617360329958755) internal successors, (13961), 5334 states have internal predecessors, (13961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13961 transitions. [2022-01-18 11:23:26,142 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13961 transitions. Word has length 135 [2022-01-18 11:23:26,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:26,142 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13961 transitions. [2022-01-18 11:23:26,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13961 transitions. [2022-01-18 11:23:26,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:26,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:26,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:26,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 11:23:26,148 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash 101193237, now seen corresponding path program 118 times [2022-01-18 11:23:26,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:26,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230518909] [2022-01-18 11:23:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:26,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:26,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:26,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:26,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230518909] [2022-01-18 11:23:26,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230518909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:26,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:26,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:26,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343548762] [2022-01-18 11:23:26,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:26,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:26,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:26,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:26,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:26,499 INFO L87 Difference]: Start difference. First operand 5335 states and 13961 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:28,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:28,625 INFO L93 Difference]: Finished difference Result 9150 states and 23972 transitions. [2022-01-18 11:23:28,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:23:28,625 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:28,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:28,637 INFO L225 Difference]: With dead ends: 9150 [2022-01-18 11:23:28,637 INFO L226 Difference]: Without dead ends: 8853 [2022-01-18 11:23:28,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=900, Invalid=3522, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:23:28,638 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 917 mSDsluCounter, 7435 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 7704 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:28,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 7704 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:28,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8853 states. [2022-01-18 11:23:28,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8853 to 5339. [2022-01-18 11:23:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6167103784188837) internal successors, (13968), 5338 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13968 transitions. [2022-01-18 11:23:28,717 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13968 transitions. Word has length 135 [2022-01-18 11:23:28,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:28,717 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13968 transitions. [2022-01-18 11:23:28,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:28,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13968 transitions. [2022-01-18 11:23:28,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:28,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:28,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:28,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 11:23:28,723 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:28,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:28,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1979582753, now seen corresponding path program 119 times [2022-01-18 11:23:28,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:28,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752449773] [2022-01-18 11:23:28,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:28,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:29,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:29,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:29,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752449773] [2022-01-18 11:23:29,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752449773] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:29,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:29,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:29,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927286848] [2022-01-18 11:23:29,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:29,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:29,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:29,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:29,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:29,084 INFO L87 Difference]: Start difference. First operand 5339 states and 13968 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:31,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:31,010 INFO L93 Difference]: Finished difference Result 9034 states and 23674 transitions. [2022-01-18 11:23:31,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:23:31,010 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:31,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:31,020 INFO L225 Difference]: With dead ends: 9034 [2022-01-18 11:23:31,021 INFO L226 Difference]: Without dead ends: 8768 [2022-01-18 11:23:31,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:23:31,021 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 850 mSDsluCounter, 7692 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 7960 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:31,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 7960 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:31,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8768 states. [2022-01-18 11:23:31,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8768 to 5343. [2022-01-18 11:23:31,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.616061400224635) internal successors, (13975), 5342 states have internal predecessors, (13975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:31,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13975 transitions. [2022-01-18 11:23:31,098 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13975 transitions. Word has length 135 [2022-01-18 11:23:31,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:31,098 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13975 transitions. [2022-01-18 11:23:31,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:31,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13975 transitions. [2022-01-18 11:23:31,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:31,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:31,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:31,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 11:23:31,104 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:31,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:31,104 INFO L85 PathProgramCache]: Analyzing trace with hash -189265719, now seen corresponding path program 120 times [2022-01-18 11:23:31,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:31,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801841611] [2022-01-18 11:23:31,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:31,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:31,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:31,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:31,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801841611] [2022-01-18 11:23:31,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801841611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:31,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:31,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:31,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512769228] [2022-01-18 11:23:31,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:31,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:31,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:31,460 INFO L87 Difference]: Start difference. First operand 5343 states and 13975 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:33,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:33,346 INFO L93 Difference]: Finished difference Result 8948 states and 23450 transitions. [2022-01-18 11:23:33,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:23:33,347 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:33,358 INFO L225 Difference]: With dead ends: 8948 [2022-01-18 11:23:33,358 INFO L226 Difference]: Without dead ends: 8545 [2022-01-18 11:23:33,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=733, Invalid=2573, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:23:33,359 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 837 mSDsluCounter, 7167 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 7449 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:33,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [837 Valid, 7449 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:23:33,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8545 states. [2022-01-18 11:23:33,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8545 to 5203. [2022-01-18 11:23:33,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 2.6309111880046134) internal successors, (13686), 5202 states have internal predecessors, (13686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:33,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 13686 transitions. [2022-01-18 11:23:33,437 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 13686 transitions. Word has length 135 [2022-01-18 11:23:33,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:33,437 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 13686 transitions. [2022-01-18 11:23:33,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 13686 transitions. [2022-01-18 11:23:33,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:33,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:33,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:33,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 11:23:33,443 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:33,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:33,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1597839895, now seen corresponding path program 121 times [2022-01-18 11:23:33,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:33,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077979105] [2022-01-18 11:23:33,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:33,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:33,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:33,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077979105] [2022-01-18 11:23:33,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077979105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:33,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:33,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:33,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600255689] [2022-01-18 11:23:33,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:33,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:33,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:33,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:33,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:33,820 INFO L87 Difference]: Start difference. First operand 5203 states and 13686 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:36,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:36,534 INFO L93 Difference]: Finished difference Result 11746 states and 30904 transitions. [2022-01-18 11:23:36,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:23:36,534 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:36,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:36,547 INFO L225 Difference]: With dead ends: 11746 [2022-01-18 11:23:36,547 INFO L226 Difference]: Without dead ends: 11371 [2022-01-18 11:23:36,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1192, Invalid=3638, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 11:23:36,548 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1206 mSDsluCounter, 6152 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 6439 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:36,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 6439 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:36,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11371 states. [2022-01-18 11:23:36,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11371 to 5487. [2022-01-18 11:23:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.63488880787459) internal successors, (14455), 5486 states have internal predecessors, (14455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14455 transitions. [2022-01-18 11:23:36,631 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14455 transitions. Word has length 135 [2022-01-18 11:23:36,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:36,631 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14455 transitions. [2022-01-18 11:23:36,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:36,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14455 transitions. [2022-01-18 11:23:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:36,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:36,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:36,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 11:23:36,636 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:36,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:36,637 INFO L85 PathProgramCache]: Analyzing trace with hash 196167733, now seen corresponding path program 122 times [2022-01-18 11:23:36,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:36,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672692577] [2022-01-18 11:23:36,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:36,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:37,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:37,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672692577] [2022-01-18 11:23:37,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672692577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:37,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:37,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:37,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918588268] [2022-01-18 11:23:37,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:37,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:37,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:37,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:37,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:37,011 INFO L87 Difference]: Start difference. First operand 5487 states and 14455 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:39,513 INFO L93 Difference]: Finished difference Result 11794 states and 31020 transitions. [2022-01-18 11:23:39,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:23:39,514 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:39,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:39,530 INFO L225 Difference]: With dead ends: 11794 [2022-01-18 11:23:39,530 INFO L226 Difference]: Without dead ends: 11503 [2022-01-18 11:23:39,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1058, Invalid=3364, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:23:39,531 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1171 mSDsluCounter, 6139 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 6426 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:39,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 6426 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:39,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11503 states. [2022-01-18 11:23:39,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11503 to 5491. [2022-01-18 11:23:39,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6342440801457196) internal successors, (14462), 5490 states have internal predecessors, (14462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:39,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14462 transitions. [2022-01-18 11:23:39,627 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14462 transitions. Word has length 135 [2022-01-18 11:23:39,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:39,627 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14462 transitions. [2022-01-18 11:23:39,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14462 transitions. [2022-01-18 11:23:39,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:39,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:39,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:39,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 11:23:39,632 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:39,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:39,633 INFO L85 PathProgramCache]: Analyzing trace with hash -95538295, now seen corresponding path program 123 times [2022-01-18 11:23:39,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:39,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208229551] [2022-01-18 11:23:39,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:39,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:39,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:39,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:39,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208229551] [2022-01-18 11:23:39,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208229551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:39,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:39,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:39,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398872694] [2022-01-18 11:23:39,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:39,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:39,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:39,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:39,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:39,993 INFO L87 Difference]: Start difference. First operand 5491 states and 14462 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:42,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:42,076 INFO L93 Difference]: Finished difference Result 11680 states and 30714 transitions. [2022-01-18 11:23:42,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:23:42,077 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:42,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:42,092 INFO L225 Difference]: With dead ends: 11680 [2022-01-18 11:23:42,092 INFO L226 Difference]: Without dead ends: 11414 [2022-01-18 11:23:42,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=793, Invalid=2629, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:23:42,093 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1113 mSDsluCounter, 6921 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 7177 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:42,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 7177 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2022-01-18 11:23:42,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 5495. [2022-01-18 11:23:42,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.633600291226793) internal successors, (14469), 5494 states have internal predecessors, (14469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:42,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14469 transitions. [2022-01-18 11:23:42,194 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14469 transitions. Word has length 135 [2022-01-18 11:23:42,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:42,194 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14469 transitions. [2022-01-18 11:23:42,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:42,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14469 transitions. [2022-01-18 11:23:42,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:42,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:42,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:42,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 11:23:42,200 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:42,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:42,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2030580529, now seen corresponding path program 124 times [2022-01-18 11:23:42,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:42,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918943991] [2022-01-18 11:23:42,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:42,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:42,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:42,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918943991] [2022-01-18 11:23:42,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918943991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:42,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:42,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:42,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761262588] [2022-01-18 11:23:42,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:42,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:42,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:42,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:42,543 INFO L87 Difference]: Start difference. First operand 5495 states and 14469 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:44,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:44,654 INFO L93 Difference]: Finished difference Result 11642 states and 30614 transitions. [2022-01-18 11:23:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:23:44,654 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:44,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:44,669 INFO L225 Difference]: With dead ends: 11642 [2022-01-18 11:23:44,669 INFO L226 Difference]: Without dead ends: 11359 [2022-01-18 11:23:44,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=852, Invalid=2808, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:23:44,669 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1091 mSDsluCounter, 6892 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 7164 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:44,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1091 Valid, 7164 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:44,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2022-01-18 11:23:44,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 5475. [2022-01-18 11:23:44,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6346364632809647) internal successors, (14422), 5474 states have internal predecessors, (14422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:44,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14422 transitions. [2022-01-18 11:23:44,843 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14422 transitions. Word has length 135 [2022-01-18 11:23:44,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:44,843 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14422 transitions. [2022-01-18 11:23:44,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14422 transitions. [2022-01-18 11:23:44,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:44,850 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:44,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:44,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 11:23:44,850 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:44,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:44,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1301613335, now seen corresponding path program 125 times [2022-01-18 11:23:44,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:44,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587340861] [2022-01-18 11:23:44,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:44,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:45,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:45,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:45,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587340861] [2022-01-18 11:23:45,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587340861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:45,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:45,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:45,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429311924] [2022-01-18 11:23:45,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:45,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:45,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:45,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:45,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:45,194 INFO L87 Difference]: Start difference. First operand 5475 states and 14422 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:47,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:47,585 INFO L93 Difference]: Finished difference Result 11802 states and 31042 transitions. [2022-01-18 11:23:47,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:23:47,585 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:47,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:47,602 INFO L225 Difference]: With dead ends: 11802 [2022-01-18 11:23:47,602 INFO L226 Difference]: Without dead ends: 11511 [2022-01-18 11:23:47,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1028, Invalid=3262, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:23:47,603 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1160 mSDsluCounter, 6527 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 6802 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:47,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 6802 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:47,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11511 states. [2022-01-18 11:23:47,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11511 to 5483. [2022-01-18 11:23:47,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6340751550529005) internal successors, (14440), 5482 states have internal predecessors, (14440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:47,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14440 transitions. [2022-01-18 11:23:47,708 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14440 transitions. Word has length 135 [2022-01-18 11:23:47,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:47,709 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14440 transitions. [2022-01-18 11:23:47,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:47,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14440 transitions. [2022-01-18 11:23:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:47,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:47,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:47,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 11:23:47,715 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:47,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:47,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1009907307, now seen corresponding path program 126 times [2022-01-18 11:23:47,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:47,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418973448] [2022-01-18 11:23:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:47,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:48,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:48,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418973448] [2022-01-18 11:23:48,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418973448] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:48,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:48,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:48,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814836034] [2022-01-18 11:23:48,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:48,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:48,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:48,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:48,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:48,070 INFO L87 Difference]: Start difference. First operand 5483 states and 14440 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:50,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:50,300 INFO L93 Difference]: Finished difference Result 11752 states and 30912 transitions. [2022-01-18 11:23:50,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:23:50,300 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:50,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:50,314 INFO L225 Difference]: With dead ends: 11752 [2022-01-18 11:23:50,314 INFO L226 Difference]: Without dead ends: 11486 [2022-01-18 11:23:50,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=821, Invalid=2719, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:23:50,315 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1095 mSDsluCounter, 7714 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 7954 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:50,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 7954 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:23:50,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11486 states. [2022-01-18 11:23:50,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11486 to 5487. [2022-01-18 11:23:50,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.633430550492162) internal successors, (14447), 5486 states have internal predecessors, (14447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:50,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14447 transitions. [2022-01-18 11:23:50,407 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14447 transitions. Word has length 135 [2022-01-18 11:23:50,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:50,407 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14447 transitions. [2022-01-18 11:23:50,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:50,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14447 transitions. [2022-01-18 11:23:50,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:50,413 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:50,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:50,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 11:23:50,413 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:50,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:50,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1158941165, now seen corresponding path program 127 times [2022-01-18 11:23:50,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:50,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881035622] [2022-01-18 11:23:50,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:50,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:50,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:50,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:50,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881035622] [2022-01-18 11:23:50,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881035622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:50,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:50,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:50,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568648257] [2022-01-18 11:23:50,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:50,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:50,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:50,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:50,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:50,759 INFO L87 Difference]: Start difference. First operand 5487 states and 14447 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:52,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:52,982 INFO L93 Difference]: Finished difference Result 11714 states and 30812 transitions. [2022-01-18 11:23:52,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:23:52,982 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:52,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:52,998 INFO L225 Difference]: With dead ends: 11714 [2022-01-18 11:23:52,998 INFO L226 Difference]: Without dead ends: 11443 [2022-01-18 11:23:52,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=855, Invalid=2805, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:23:52,999 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1104 mSDsluCounter, 6873 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:52,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 7144 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:53,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11443 states. [2022-01-18 11:23:53,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11443 to 5479. [2022-01-18 11:23:53,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6339905074844836) internal successors, (14429), 5478 states have internal predecessors, (14429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:53,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14429 transitions. [2022-01-18 11:23:53,095 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14429 transitions. Word has length 135 [2022-01-18 11:23:53,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:53,095 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14429 transitions. [2022-01-18 11:23:53,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:53,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14429 transitions. [2022-01-18 11:23:53,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:53,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:53,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:53,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 11:23:53,101 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:53,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:53,101 INFO L85 PathProgramCache]: Analyzing trace with hash -786160999, now seen corresponding path program 128 times [2022-01-18 11:23:53,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:53,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105404279] [2022-01-18 11:23:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:53,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:53,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:53,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105404279] [2022-01-18 11:23:53,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105404279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:53,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:53,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:53,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216124237] [2022-01-18 11:23:53,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:53,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:53,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:53,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:53,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:53,484 INFO L87 Difference]: Start difference. First operand 5479 states and 14429 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:56,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:56,017 INFO L93 Difference]: Finished difference Result 11804 states and 31030 transitions. [2022-01-18 11:23:56,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:23:56,017 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:56,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:56,030 INFO L225 Difference]: With dead ends: 11804 [2022-01-18 11:23:56,030 INFO L226 Difference]: Without dead ends: 11507 [2022-01-18 11:23:56,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=984, Invalid=3176, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:23:56,030 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1153 mSDsluCounter, 7810 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 8038 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:56,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 8038 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:23:56,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11507 states. [2022-01-18 11:23:56,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11507 to 5483. [2022-01-18 11:23:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6333454943451295) internal successors, (14436), 5482 states have internal predecessors, (14436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14436 transitions. [2022-01-18 11:23:56,113 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14436 transitions. Word has length 135 [2022-01-18 11:23:56,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:56,113 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14436 transitions. [2022-01-18 11:23:56,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:56,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14436 transitions. [2022-01-18 11:23:56,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:56,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:56,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:56,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 11:23:56,119 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:56,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:56,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1092228517, now seen corresponding path program 129 times [2022-01-18 11:23:56,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:56,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310398209] [2022-01-18 11:23:56,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:56,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:56,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:56,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310398209] [2022-01-18 11:23:56,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310398209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:56,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:56,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:56,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843785823] [2022-01-18 11:23:56,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:56,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:56,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:56,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:56,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:56,513 INFO L87 Difference]: Start difference. First operand 5483 states and 14436 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:58,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:23:58,781 INFO L93 Difference]: Finished difference Result 11704 states and 30776 transitions. [2022-01-18 11:23:58,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:23:58,782 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:23:58,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:23:58,797 INFO L225 Difference]: With dead ends: 11704 [2022-01-18 11:23:58,797 INFO L226 Difference]: Without dead ends: 11438 [2022-01-18 11:23:58,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=850, Invalid=2810, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:23:58,798 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1111 mSDsluCounter, 7316 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 7565 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:23:58,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 7565 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:23:58,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11438 states. [2022-01-18 11:23:58,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11438 to 5487. [2022-01-18 11:23:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.632701421800948) internal successors, (14443), 5486 states have internal predecessors, (14443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:58,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14443 transitions. [2022-01-18 11:23:58,893 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14443 transitions. Word has length 135 [2022-01-18 11:23:58,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:23:58,894 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14443 transitions. [2022-01-18 11:23:58,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:23:58,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14443 transitions. [2022-01-18 11:23:58,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:23:58,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:23:58,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:23:58,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 11:23:58,899 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:23:58,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:23:58,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1076619955, now seen corresponding path program 130 times [2022-01-18 11:23:58,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:23:58,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012242689] [2022-01-18 11:23:58,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:23:58,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:23:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:23:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:23:59,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:23:59,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012242689] [2022-01-18 11:23:59,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012242689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:23:59,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:23:59,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:23:59,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911426133] [2022-01-18 11:23:59,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:23:59,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:23:59,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:23:59,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:23:59,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:23:59,282 INFO L87 Difference]: Start difference. First operand 5487 states and 14443 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:01,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:01,408 INFO L93 Difference]: Finished difference Result 11634 states and 30588 transitions. [2022-01-18 11:24:01,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:24:01,408 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:01,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:01,423 INFO L225 Difference]: With dead ends: 11634 [2022-01-18 11:24:01,423 INFO L226 Difference]: Without dead ends: 11347 [2022-01-18 11:24:01,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=833, Invalid=2707, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:24:01,424 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1074 mSDsluCounter, 6468 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 6743 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:01,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1074 Valid, 6743 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:01,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2022-01-18 11:24:01,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 5463. [2022-01-18 11:24:01,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.6343830098864887) internal successors, (14389), 5462 states have internal predecessors, (14389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:01,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14389 transitions. [2022-01-18 11:24:01,516 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14389 transitions. Word has length 135 [2022-01-18 11:24:01,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:01,516 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14389 transitions. [2022-01-18 11:24:01,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:01,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14389 transitions. [2022-01-18 11:24:01,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:01,521 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:01,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:01,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 11:24:01,522 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:01,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:01,522 INFO L85 PathProgramCache]: Analyzing trace with hash -614471499, now seen corresponding path program 131 times [2022-01-18 11:24:01,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:01,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051178299] [2022-01-18 11:24:01,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:01,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:01,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:01,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051178299] [2022-01-18 11:24:01,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051178299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:01,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:01,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:01,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720358558] [2022-01-18 11:24:01,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:01,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:01,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:01,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:01,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:01,936 INFO L87 Difference]: Start difference. First operand 5463 states and 14389 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:04,463 INFO L93 Difference]: Finished difference Result 11850 states and 31174 transitions. [2022-01-18 11:24:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:24:04,463 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:04,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:04,478 INFO L225 Difference]: With dead ends: 11850 [2022-01-18 11:24:04,479 INFO L226 Difference]: Without dead ends: 11559 [2022-01-18 11:24:04,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1002, Invalid=3158, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:24:04,479 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1167 mSDsluCounter, 6876 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:04,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 7144 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11559 states. [2022-01-18 11:24:04,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11559 to 5483. [2022-01-18 11:24:04,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6340751550529005) internal successors, (14440), 5482 states have internal predecessors, (14440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:04,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14440 transitions. [2022-01-18 11:24:04,610 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14440 transitions. Word has length 135 [2022-01-18 11:24:04,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:04,610 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14440 transitions. [2022-01-18 11:24:04,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:04,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14440 transitions. [2022-01-18 11:24:04,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:04,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:04,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:04,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 11:24:04,615 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:04,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:04,616 INFO L85 PathProgramCache]: Analyzing trace with hash -906177527, now seen corresponding path program 132 times [2022-01-18 11:24:04,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:04,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427581275] [2022-01-18 11:24:04,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:04,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:04,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:04,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427581275] [2022-01-18 11:24:04,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427581275] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:04,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:04,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:04,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621844401] [2022-01-18 11:24:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:04,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:04,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:04,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:04,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:04,968 INFO L87 Difference]: Start difference. First operand 5483 states and 14440 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:07,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:07,110 INFO L93 Difference]: Finished difference Result 11816 states and 31088 transitions. [2022-01-18 11:24:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:24:07,110 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:07,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:07,126 INFO L225 Difference]: With dead ends: 11816 [2022-01-18 11:24:07,126 INFO L226 Difference]: Without dead ends: 11550 [2022-01-18 11:24:07,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=816, Invalid=2724, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:24:07,127 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1120 mSDsluCounter, 6925 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 7183 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:07,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 7183 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:07,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11550 states. [2022-01-18 11:24:07,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11550 to 5487. [2022-01-18 11:24:07,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.633430550492162) internal successors, (14447), 5486 states have internal predecessors, (14447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:07,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14447 transitions. [2022-01-18 11:24:07,231 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14447 transitions. Word has length 135 [2022-01-18 11:24:07,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:07,231 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14447 transitions. [2022-01-18 11:24:07,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:07,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14447 transitions. [2022-01-18 11:24:07,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:07,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:07,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:07,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 11:24:07,237 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:07,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:07,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1219941297, now seen corresponding path program 133 times [2022-01-18 11:24:07,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:07,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079333195] [2022-01-18 11:24:07,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:07,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:07,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:07,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079333195] [2022-01-18 11:24:07,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079333195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:07,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:07,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:07,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907470151] [2022-01-18 11:24:07,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:07,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:07,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:07,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:07,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:07,626 INFO L87 Difference]: Start difference. First operand 5487 states and 14447 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:09,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:09,880 INFO L93 Difference]: Finished difference Result 11778 states and 30988 transitions. [2022-01-18 11:24:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:24:09,881 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:09,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:09,893 INFO L225 Difference]: With dead ends: 11778 [2022-01-18 11:24:09,893 INFO L226 Difference]: Without dead ends: 11507 [2022-01-18 11:24:09,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=868, Invalid=2792, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:24:09,894 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1081 mSDsluCounter, 6874 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:09,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1081 Valid, 7144 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:09,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11507 states. [2022-01-18 11:24:09,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11507 to 5479. [2022-01-18 11:24:09,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6339905074844836) internal successors, (14429), 5478 states have internal predecessors, (14429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:09,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14429 transitions. [2022-01-18 11:24:09,975 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14429 transitions. Word has length 135 [2022-01-18 11:24:09,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:09,976 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14429 transitions. [2022-01-18 11:24:09,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:09,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14429 transitions. [2022-01-18 11:24:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:09,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:09,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:09,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 11:24:09,981 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:09,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:09,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1592721463, now seen corresponding path program 134 times [2022-01-18 11:24:09,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:09,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741670825] [2022-01-18 11:24:09,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:09,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:10,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:10,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741670825] [2022-01-18 11:24:10,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741670825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:10,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:10,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:10,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83689578] [2022-01-18 11:24:10,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:10,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:10,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:10,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:10,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:10,330 INFO L87 Difference]: Start difference. First operand 5479 states and 14429 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:12,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:12,789 INFO L93 Difference]: Finished difference Result 11948 states and 31426 transitions. [2022-01-18 11:24:12,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:24:12,789 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:12,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:12,804 INFO L225 Difference]: With dead ends: 11948 [2022-01-18 11:24:12,804 INFO L226 Difference]: Without dead ends: 11651 [2022-01-18 11:24:12,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1008, Invalid=3282, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:24:12,805 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1171 mSDsluCounter, 7032 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 7282 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:12,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 7282 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:12,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11651 states. [2022-01-18 11:24:12,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11651 to 5483. [2022-01-18 11:24:12,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6333454943451295) internal successors, (14436), 5482 states have internal predecessors, (14436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14436 transitions. [2022-01-18 11:24:12,906 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14436 transitions. Word has length 135 [2022-01-18 11:24:12,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:12,906 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14436 transitions. [2022-01-18 11:24:12,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14436 transitions. [2022-01-18 11:24:12,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:12,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:12,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:12,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 11:24:12,912 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:12,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:12,912 INFO L85 PathProgramCache]: Analyzing trace with hash -823856317, now seen corresponding path program 135 times [2022-01-18 11:24:12,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:12,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302389304] [2022-01-18 11:24:12,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:12,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:13,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:13,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:13,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302389304] [2022-01-18 11:24:13,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302389304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:13,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:13,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:13,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751006174] [2022-01-18 11:24:13,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:13,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:13,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:13,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:13,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:13,268 INFO L87 Difference]: Start difference. First operand 5483 states and 14436 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:15,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:15,521 INFO L93 Difference]: Finished difference Result 11832 states and 31128 transitions. [2022-01-18 11:24:15,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:24:15,521 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:15,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:15,535 INFO L225 Difference]: With dead ends: 11832 [2022-01-18 11:24:15,535 INFO L226 Difference]: Without dead ends: 11566 [2022-01-18 11:24:15,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=846, Invalid=2814, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:24:15,535 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1108 mSDsluCounter, 7325 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 7575 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:15,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 7575 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:15,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2022-01-18 11:24:15,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 5487. [2022-01-18 11:24:15,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.632701421800948) internal successors, (14443), 5486 states have internal predecessors, (14443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:15,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14443 transitions. [2022-01-18 11:24:15,622 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14443 transitions. Word has length 135 [2022-01-18 11:24:15,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:15,622 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14443 transitions. [2022-01-18 11:24:15,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:15,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14443 transitions. [2022-01-18 11:24:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:15,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:15,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:15,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 11:24:15,628 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:15,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:15,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1302262507, now seen corresponding path program 136 times [2022-01-18 11:24:15,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:15,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277804902] [2022-01-18 11:24:15,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:15,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:15,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:15,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277804902] [2022-01-18 11:24:15,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277804902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:15,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:15,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:15,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20390630] [2022-01-18 11:24:15,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:15,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:15,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:15,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:15,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:15,973 INFO L87 Difference]: Start difference. First operand 5487 states and 14443 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:17,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:17,997 INFO L93 Difference]: Finished difference Result 11778 states and 30984 transitions. [2022-01-18 11:24:17,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:24:17,997 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:17,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:18,013 INFO L225 Difference]: With dead ends: 11778 [2022-01-18 11:24:18,013 INFO L226 Difference]: Without dead ends: 11503 [2022-01-18 11:24:18,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=832, Invalid=2708, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:24:18,014 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1102 mSDsluCounter, 6118 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 6397 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:18,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 6397 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:18,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11503 states. [2022-01-18 11:24:18,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11503 to 5475. [2022-01-18 11:24:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6339057362075264) internal successors, (14418), 5474 states have internal predecessors, (14418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:18,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14418 transitions. [2022-01-18 11:24:18,107 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14418 transitions. Word has length 135 [2022-01-18 11:24:18,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:18,107 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14418 transitions. [2022-01-18 11:24:18,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:18,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14418 transitions. [2022-01-18 11:24:18,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:18,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:18,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:18,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 11:24:18,113 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:18,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:18,113 INFO L85 PathProgramCache]: Analyzing trace with hash 682956455, now seen corresponding path program 137 times [2022-01-18 11:24:18,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:18,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353441857] [2022-01-18 11:24:18,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:18,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:18,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:18,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:18,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353441857] [2022-01-18 11:24:18,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353441857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:18,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:18,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:18,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843279192] [2022-01-18 11:24:18,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:18,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:18,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:18,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:18,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:18,456 INFO L87 Difference]: Start difference. First operand 5475 states and 14418 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:21,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:21,251 INFO L93 Difference]: Finished difference Result 11971 states and 31458 transitions. [2022-01-18 11:24:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:24:21,251 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:21,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:21,263 INFO L225 Difference]: With dead ends: 11971 [2022-01-18 11:24:21,264 INFO L226 Difference]: Without dead ends: 11581 [2022-01-18 11:24:21,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1190, Invalid=3780, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 11:24:21,264 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1253 mSDsluCounter, 7123 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 7366 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:21,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 7366 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:21,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11581 states. [2022-01-18 11:24:21,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11581 to 5487. [2022-01-18 11:24:21,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.631972293109734) internal successors, (14439), 5486 states have internal predecessors, (14439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:21,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14439 transitions. [2022-01-18 11:24:21,346 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14439 transitions. Word has length 135 [2022-01-18 11:24:21,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:21,346 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14439 transitions. [2022-01-18 11:24:21,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:21,346 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14439 transitions. [2022-01-18 11:24:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:21,351 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:21,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:21,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 11:24:21,352 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:21,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:21,352 INFO L85 PathProgramCache]: Analyzing trace with hash 289491419, now seen corresponding path program 138 times [2022-01-18 11:24:21,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:21,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37133759] [2022-01-18 11:24:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:21,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:21,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:21,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:21,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37133759] [2022-01-18 11:24:21,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37133759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:21,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:21,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:21,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652128587] [2022-01-18 11:24:21,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:21,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:21,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:21,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:21,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:21,702 INFO L87 Difference]: Start difference. First operand 5487 states and 14439 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:24,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:24,252 INFO L93 Difference]: Finished difference Result 11828 states and 31084 transitions. [2022-01-18 11:24:24,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:24:24,252 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:24,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:24,269 INFO L225 Difference]: With dead ends: 11828 [2022-01-18 11:24:24,269 INFO L226 Difference]: Without dead ends: 11531 [2022-01-18 11:24:24,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1032, Invalid=3390, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:24:24,270 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1175 mSDsluCounter, 7431 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 7672 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:24,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1175 Valid, 7672 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11531 states. [2022-01-18 11:24:24,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11531 to 5491. [2022-01-18 11:24:24,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.631329690346084) internal successors, (14446), 5490 states have internal predecessors, (14446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14446 transitions. [2022-01-18 11:24:24,398 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14446 transitions. Word has length 135 [2022-01-18 11:24:24,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:24,398 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14446 transitions. [2022-01-18 11:24:24,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:24,398 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14446 transitions. [2022-01-18 11:24:24,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:24,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:24,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:24,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 11:24:24,404 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:24,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:24,405 INFO L85 PathProgramCache]: Analyzing trace with hash -2127086361, now seen corresponding path program 139 times [2022-01-18 11:24:24,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:24,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829835702] [2022-01-18 11:24:24,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:24,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:24,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:24,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829835702] [2022-01-18 11:24:24,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829835702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:24,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:24,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:24,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544262033] [2022-01-18 11:24:24,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:24,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:24,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:24,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:24,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:24,762 INFO L87 Difference]: Start difference. First operand 5491 states and 14446 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:26,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:26,952 INFO L93 Difference]: Finished difference Result 11728 states and 30830 transitions. [2022-01-18 11:24:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:24:26,953 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:26,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:26,968 INFO L225 Difference]: With dead ends: 11728 [2022-01-18 11:24:26,968 INFO L226 Difference]: Without dead ends: 11462 [2022-01-18 11:24:26,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=841, Invalid=2819, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:24:26,969 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1130 mSDsluCounter, 6902 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:26,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 7158 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:26,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2022-01-18 11:24:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5495. [2022-01-18 11:24:27,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.6306880232981436) internal successors, (14453), 5494 states have internal predecessors, (14453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:27,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14453 transitions. [2022-01-18 11:24:27,067 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14453 transitions. Word has length 135 [2022-01-18 11:24:27,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:27,067 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14453 transitions. [2022-01-18 11:24:27,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:27,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14453 transitions. [2022-01-18 11:24:27,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:27,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:27,073 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] [2022-01-18 11:24:27,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 11:24:27,073 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:27,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:27,073 INFO L85 PathProgramCache]: Analyzing trace with hash -967537, now seen corresponding path program 140 times [2022-01-18 11:24:27,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:27,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556107919] [2022-01-18 11:24:27,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:27,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:27,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:27,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556107919] [2022-01-18 11:24:27,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556107919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:27,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:27,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:27,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588039631] [2022-01-18 11:24:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:27,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:27,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:27,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:27,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:27,454 INFO L87 Difference]: Start difference. First operand 5495 states and 14453 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:29,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:29,590 INFO L93 Difference]: Finished difference Result 11642 states and 30598 transitions. [2022-01-18 11:24:29,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:24:29,590 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:29,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:29,602 INFO L225 Difference]: With dead ends: 11642 [2022-01-18 11:24:29,603 INFO L226 Difference]: Without dead ends: 11311 [2022-01-18 11:24:29,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=802, Invalid=2620, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:24:29,603 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1097 mSDsluCounter, 6810 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 7074 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:29,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1097 Valid, 7074 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:29,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11311 states. [2022-01-18 11:24:29,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11311 to 5427. [2022-01-18 11:24:29,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 2.633615923332105) internal successors, (14290), 5426 states have internal predecessors, (14290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:29,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 14290 transitions. [2022-01-18 11:24:29,686 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 14290 transitions. Word has length 135 [2022-01-18 11:24:29,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:29,686 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 14290 transitions. [2022-01-18 11:24:29,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 14290 transitions. [2022-01-18 11:24:29,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:29,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:29,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:29,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 11:24:29,693 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:29,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:29,693 INFO L85 PathProgramCache]: Analyzing trace with hash -501888233, now seen corresponding path program 141 times [2022-01-18 11:24:29,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:29,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763782951] [2022-01-18 11:24:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:29,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:30,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:30,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:30,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763782951] [2022-01-18 11:24:30,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763782951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:30,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:30,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:30,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937743372] [2022-01-18 11:24:30,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:30,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:30,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:30,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:30,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:30,034 INFO L87 Difference]: Start difference. First operand 5427 states and 14290 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:32,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:32,488 INFO L93 Difference]: Finished difference Result 11834 states and 31130 transitions. [2022-01-18 11:24:32,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:24:32,488 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:32,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:32,503 INFO L225 Difference]: With dead ends: 11834 [2022-01-18 11:24:32,503 INFO L226 Difference]: Without dead ends: 11543 [2022-01-18 11:24:32,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=981, Invalid=3051, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:24:32,504 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1140 mSDsluCounter, 7264 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 7523 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:32,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 7523 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:32,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11543 states. [2022-01-18 11:24:32,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11543 to 5451. [2022-01-18 11:24:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.633394495412844) internal successors, (14352), 5450 states have internal predecessors, (14352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:32,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14352 transitions. [2022-01-18 11:24:32,594 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14352 transitions. Word has length 135 [2022-01-18 11:24:32,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:32,594 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14352 transitions. [2022-01-18 11:24:32,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:32,595 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14352 transitions. [2022-01-18 11:24:32,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:32,600 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:32,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:32,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 11:24:32,600 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:32,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:32,600 INFO L85 PathProgramCache]: Analyzing trace with hash -793594261, now seen corresponding path program 142 times [2022-01-18 11:24:32,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:32,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443948390] [2022-01-18 11:24:32,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:32,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:32,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:32,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:32,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443948390] [2022-01-18 11:24:32,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443948390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:32,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:32,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:32,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099148566] [2022-01-18 11:24:32,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:32,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:32,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:32,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:32,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:32,960 INFO L87 Difference]: Start difference. First operand 5451 states and 14352 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:35,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:35,094 INFO L93 Difference]: Finished difference Result 11848 states and 31160 transitions. [2022-01-18 11:24:35,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:24:35,095 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:35,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:35,107 INFO L225 Difference]: With dead ends: 11848 [2022-01-18 11:24:35,108 INFO L226 Difference]: Without dead ends: 11582 [2022-01-18 11:24:35,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=811, Invalid=2729, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:24:35,108 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1116 mSDsluCounter, 6955 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 7214 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:35,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1116 Valid, 7214 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:35,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11582 states. [2022-01-18 11:24:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11582 to 5455. [2022-01-18 11:24:35,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632746607994133) internal successors, (14359), 5454 states have internal predecessors, (14359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:35,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14359 transitions. [2022-01-18 11:24:35,190 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14359 transitions. Word has length 135 [2022-01-18 11:24:35,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:35,190 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14359 transitions. [2022-01-18 11:24:35,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:35,190 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14359 transitions. [2022-01-18 11:24:35,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:35,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:35,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:35,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 11:24:35,196 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:35,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:35,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1332524563, now seen corresponding path program 143 times [2022-01-18 11:24:35,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:35,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958093161] [2022-01-18 11:24:35,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:35,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:35,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:35,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958093161] [2022-01-18 11:24:35,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958093161] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:35,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:35,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:35,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103379986] [2022-01-18 11:24:35,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:35,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:35,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:35,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:35,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:35,544 INFO L87 Difference]: Start difference. First operand 5455 states and 14359 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:37,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:37,799 INFO L93 Difference]: Finished difference Result 11810 states and 31060 transitions. [2022-01-18 11:24:37,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:24:37,799 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:37,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:37,817 INFO L225 Difference]: With dead ends: 11810 [2022-01-18 11:24:37,817 INFO L226 Difference]: Without dead ends: 11539 [2022-01-18 11:24:37,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:24:37,818 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1083 mSDsluCounter, 7642 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 7895 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:37,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1083 Valid, 7895 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:37,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2022-01-18 11:24:37,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 5447. [2022-01-18 11:24:37,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.633308850532501) internal successors, (14341), 5446 states have internal predecessors, (14341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:37,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14341 transitions. [2022-01-18 11:24:37,925 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14341 transitions. Word has length 135 [2022-01-18 11:24:37,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:37,926 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14341 transitions. [2022-01-18 11:24:37,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:37,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14341 transitions. [2022-01-18 11:24:37,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:37,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:37,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:37,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 11:24:37,932 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:37,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:37,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1705304729, now seen corresponding path program 144 times [2022-01-18 11:24:37,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:37,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100579928] [2022-01-18 11:24:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:37,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:38,317 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 11:24:38,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:38,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100579928] [2022-01-18 11:24:38,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100579928] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:38,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:38,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:38,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264185501] [2022-01-18 11:24:38,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:38,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:38,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:38,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:38,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:38,319 INFO L87 Difference]: Start difference. First operand 5447 states and 14341 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:40,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:40,835 INFO L93 Difference]: Finished difference Result 11980 states and 31498 transitions. [2022-01-18 11:24:40,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:24:40,836 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:40,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:40,849 INFO L225 Difference]: With dead ends: 11980 [2022-01-18 11:24:40,849 INFO L226 Difference]: Without dead ends: 11683 [2022-01-18 11:24:40,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=997, Invalid=3293, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:24:40,850 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1174 mSDsluCounter, 7463 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 7704 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:40,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1174 Valid, 7704 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:40,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11683 states. [2022-01-18 11:24:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11683 to 5451. [2022-01-18 11:24:40,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6326605504587155) internal successors, (14348), 5450 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:40,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14348 transitions. [2022-01-18 11:24:40,941 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14348 transitions. Word has length 135 [2022-01-18 11:24:40,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:40,941 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14348 transitions. [2022-01-18 11:24:40,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:40,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14348 transitions. [2022-01-18 11:24:40,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:40,947 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:40,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:40,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 11:24:40,947 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:40,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:40,947 INFO L85 PathProgramCache]: Analyzing trace with hash -711273051, now seen corresponding path program 145 times [2022-01-18 11:24:40,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:40,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123734177] [2022-01-18 11:24:40,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:40,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:41,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:41,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123734177] [2022-01-18 11:24:41,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123734177] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:41,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:41,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:41,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231968061] [2022-01-18 11:24:41,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:41,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:41,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:41,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:41,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:41,304 INFO L87 Difference]: Start difference. First operand 5451 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:43,478 INFO L93 Difference]: Finished difference Result 11864 states and 31200 transitions. [2022-01-18 11:24:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:24:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:43,494 INFO L225 Difference]: With dead ends: 11864 [2022-01-18 11:24:43,494 INFO L226 Difference]: Without dead ends: 11598 [2022-01-18 11:24:43,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=841, Invalid=2819, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:24:43,495 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1123 mSDsluCounter, 6961 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 7221 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:43,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 7221 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:43,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11598 states. [2022-01-18 11:24:43,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11598 to 5455. [2022-01-18 11:24:43,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632013201320132) internal successors, (14355), 5454 states have internal predecessors, (14355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14355 transitions. [2022-01-18 11:24:43,594 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14355 transitions. Word has length 135 [2022-01-18 11:24:43,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:43,594 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14355 transitions. [2022-01-18 11:24:43,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:43,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14355 transitions. [2022-01-18 11:24:43,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:43,600 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:43,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:43,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 11:24:43,600 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:43,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:43,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1414845773, now seen corresponding path program 146 times [2022-01-18 11:24:43,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:43,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126517474] [2022-01-18 11:24:43,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:43,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:43,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:43,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:43,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126517474] [2022-01-18 11:24:43,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126517474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:43,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:43,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:43,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758559455] [2022-01-18 11:24:43,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:43,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:43,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:43,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:43,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:43,988 INFO L87 Difference]: Start difference. First operand 5455 states and 14355 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:46,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:46,085 INFO L93 Difference]: Finished difference Result 11810 states and 31056 transitions. [2022-01-18 11:24:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:24:46,085 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:46,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:46,101 INFO L225 Difference]: With dead ends: 11810 [2022-01-18 11:24:46,101 INFO L226 Difference]: Without dead ends: 11535 [2022-01-18 11:24:46,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:24:46,101 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1104 mSDsluCounter, 6083 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 6365 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:46,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 6365 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:46,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2022-01-18 11:24:46,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 5443. [2022-01-18 11:24:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.633223079750092) internal successors, (14330), 5442 states have internal predecessors, (14330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:46,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14330 transitions. [2022-01-18 11:24:46,198 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14330 transitions. Word has length 135 [2022-01-18 11:24:46,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:46,198 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14330 transitions. [2022-01-18 11:24:46,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:46,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14330 transitions. [2022-01-18 11:24:46,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:46,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:46,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:46,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 11:24:46,204 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:46,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:46,204 INFO L85 PathProgramCache]: Analyzing trace with hash 795539721, now seen corresponding path program 147 times [2022-01-18 11:24:46,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:46,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025998552] [2022-01-18 11:24:46,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:46,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:46,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:46,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:46,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025998552] [2022-01-18 11:24:46,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025998552] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:46,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:46,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:46,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522583540] [2022-01-18 11:24:46,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:46,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:46,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:46,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:46,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:46,548 INFO L87 Difference]: Start difference. First operand 5443 states and 14330 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:49,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:49,401 INFO L93 Difference]: Finished difference Result 12147 states and 31926 transitions. [2022-01-18 11:24:49,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:24:49,401 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:49,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:49,415 INFO L225 Difference]: With dead ends: 12147 [2022-01-18 11:24:49,415 INFO L226 Difference]: Without dead ends: 11757 [2022-01-18 11:24:49,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1208, Invalid=3904, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:24:49,415 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1240 mSDsluCounter, 7584 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 7819 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:49,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 7819 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:49,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2022-01-18 11:24:49,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 5455. [2022-01-18 11:24:49,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6312797946461313) internal successors, (14351), 5454 states have internal predecessors, (14351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:49,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14351 transitions. [2022-01-18 11:24:49,501 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14351 transitions. Word has length 135 [2022-01-18 11:24:49,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:49,501 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14351 transitions. [2022-01-18 11:24:49,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:49,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14351 transitions. [2022-01-18 11:24:49,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:49,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:49,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:49,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 11:24:49,507 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:49,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:49,507 INFO L85 PathProgramCache]: Analyzing trace with hash 402074685, now seen corresponding path program 148 times [2022-01-18 11:24:49,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:49,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393203717] [2022-01-18 11:24:49,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:49,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:49,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:49,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:49,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393203717] [2022-01-18 11:24:49,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393203717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:49,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:49,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:49,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542403303] [2022-01-18 11:24:49,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:49,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:49,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:49,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:49,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:49,849 INFO L87 Difference]: Start difference. First operand 5455 states and 14351 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:52,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:52,343 INFO L93 Difference]: Finished difference Result 11996 states and 31530 transitions. [2022-01-18 11:24:52,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:24:52,344 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:52,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:52,361 INFO L225 Difference]: With dead ends: 11996 [2022-01-18 11:24:52,361 INFO L226 Difference]: Without dead ends: 11699 [2022-01-18 11:24:52,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1022, Invalid=3400, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:24:52,362 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1189 mSDsluCounter, 7075 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 7328 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:52,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1189 Valid, 7328 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:52,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11699 states. [2022-01-18 11:24:52,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11699 to 5459. [2022-01-18 11:24:52,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 2.630633931843166) internal successors, (14358), 5458 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:52,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 14358 transitions. [2022-01-18 11:24:52,472 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 14358 transitions. Word has length 135 [2022-01-18 11:24:52,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:52,472 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 14358 transitions. [2022-01-18 11:24:52,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:52,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 14358 transitions. [2022-01-18 11:24:52,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:52,479 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:52,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:52,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 11:24:52,479 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -2014503095, now seen corresponding path program 149 times [2022-01-18 11:24:52,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:52,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006833939] [2022-01-18 11:24:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:52,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:52,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:52,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006833939] [2022-01-18 11:24:52,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006833939] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:52,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:52,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:52,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637039273] [2022-01-18 11:24:52,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:52,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:52,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:52,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:52,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:52,856 INFO L87 Difference]: Start difference. First operand 5459 states and 14358 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:55,099 INFO L93 Difference]: Finished difference Result 11880 states and 31232 transitions. [2022-01-18 11:24:55,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:24:55,100 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:55,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:55,112 INFO L225 Difference]: With dead ends: 11880 [2022-01-18 11:24:55,112 INFO L226 Difference]: Without dead ends: 11614 [2022-01-18 11:24:55,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=835, Invalid=2825, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:24:55,113 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1113 mSDsluCounter, 7343 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 7592 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:55,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 7592 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:55,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11614 states. [2022-01-18 11:24:55,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11614 to 5463. [2022-01-18 11:24:55,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.629989015012816) internal successors, (14365), 5462 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14365 transitions. [2022-01-18 11:24:55,194 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14365 transitions. Word has length 135 [2022-01-18 11:24:55,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:55,194 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14365 transitions. [2022-01-18 11:24:55,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:55,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14365 transitions. [2022-01-18 11:24:55,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:55,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:55,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:55,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 11:24:55,200 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:55,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:55,200 INFO L85 PathProgramCache]: Analyzing trace with hash 111615729, now seen corresponding path program 150 times [2022-01-18 11:24:55,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:55,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107711282] [2022-01-18 11:24:55,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:55,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:55,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:55,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107711282] [2022-01-18 11:24:55,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107711282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:55,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:55,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:55,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040126259] [2022-01-18 11:24:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:55,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:55,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:55,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:55,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:55,540 INFO L87 Difference]: Start difference. First operand 5463 states and 14365 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:57,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:24:57,647 INFO L93 Difference]: Finished difference Result 11818 states and 31066 transitions. [2022-01-18 11:24:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:24:57,647 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:24:57,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:24:57,663 INFO L225 Difference]: With dead ends: 11818 [2022-01-18 11:24:57,663 INFO L226 Difference]: Without dead ends: 11523 [2022-01-18 11:24:57,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=807, Invalid=2615, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:24:57,667 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1103 mSDsluCounter, 6832 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 7096 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:24:57,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 7096 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:24:57,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11523 states. [2022-01-18 11:24:57,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11523 to 5431. [2022-01-18 11:24:57,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 2.632965009208103) internal successors, (14297), 5430 states have internal predecessors, (14297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:57,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 14297 transitions. [2022-01-18 11:24:57,757 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 14297 transitions. Word has length 135 [2022-01-18 11:24:57,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:24:57,757 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 14297 transitions. [2022-01-18 11:24:57,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:24:57,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 14297 transitions. [2022-01-18 11:24:57,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:24:57,762 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:24:57,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:24:57,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 11:24:57,762 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:24:57,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:24:57,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1595220151, now seen corresponding path program 151 times [2022-01-18 11:24:57,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:24:57,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498326256] [2022-01-18 11:24:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:24:57,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:24:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:24:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:24:58,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:24:58,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498326256] [2022-01-18 11:24:58,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498326256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:24:58,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:24:58,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:24:58,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719175333] [2022-01-18 11:24:58,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:24:58,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:24:58,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:24:58,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:24:58,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:24:58,134 INFO L87 Difference]: Start difference. First operand 5431 states and 14297 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:01,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:01,296 INFO L93 Difference]: Finished difference Result 12181 states and 31920 transitions. [2022-01-18 11:25:01,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:25:01,296 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:01,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:01,309 INFO L225 Difference]: With dead ends: 12181 [2022-01-18 11:25:01,309 INFO L226 Difference]: Without dead ends: 11760 [2022-01-18 11:25:01,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1391, Invalid=4309, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:25:01,310 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1509 mSDsluCounter, 7695 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 7924 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:01,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1509 Valid, 7924 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:25:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11760 states. [2022-01-18 11:25:01,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11760 to 5435. [2022-01-18 11:25:01,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.632315053367685) internal successors, (14304), 5434 states have internal predecessors, (14304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:01,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14304 transitions. [2022-01-18 11:25:01,394 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14304 transitions. Word has length 135 [2022-01-18 11:25:01,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:01,395 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14304 transitions. [2022-01-18 11:25:01,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:01,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14304 transitions. [2022-01-18 11:25:01,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:01,400 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:01,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:01,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 11:25:01,400 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:01,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:01,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1602527007, now seen corresponding path program 152 times [2022-01-18 11:25:01,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:01,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470706078] [2022-01-18 11:25:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:01,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:01,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:01,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:01,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470706078] [2022-01-18 11:25:01,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470706078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:01,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:01,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:01,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761324578] [2022-01-18 11:25:01,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:01,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:01,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:01,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:01,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:01,773 INFO L87 Difference]: Start difference. First operand 5435 states and 14304 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:04,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:04,624 INFO L93 Difference]: Finished difference Result 11979 states and 31460 transitions. [2022-01-18 11:25:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:25:04,625 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:04,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:04,638 INFO L225 Difference]: With dead ends: 11979 [2022-01-18 11:25:04,638 INFO L226 Difference]: Without dead ends: 11589 [2022-01-18 11:25:04,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1226, Invalid=4030, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:25:04,638 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1237 mSDsluCounter, 7194 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 7441 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:04,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1237 Valid, 7441 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:04,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11589 states. [2022-01-18 11:25:04,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11589 to 5447. [2022-01-18 11:25:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.630370914432611) internal successors, (14325), 5446 states have internal predecessors, (14325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14325 transitions. [2022-01-18 11:25:04,727 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14325 transitions. Word has length 135 [2022-01-18 11:25:04,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:04,727 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14325 transitions. [2022-01-18 11:25:04,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:04,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14325 transitions. [2022-01-18 11:25:04,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:04,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:04,733 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] [2022-01-18 11:25:04,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 11:25:04,733 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:04,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:04,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1547344085, now seen corresponding path program 153 times [2022-01-18 11:25:04,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:04,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086711045] [2022-01-18 11:25:04,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:04,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:05,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:05,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086711045] [2022-01-18 11:25:05,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086711045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:05,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:05,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:05,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788380498] [2022-01-18 11:25:05,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:05,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:05,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:05,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:05,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:05,105 INFO L87 Difference]: Start difference. First operand 5447 states and 14325 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:07,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:07,624 INFO L93 Difference]: Finished difference Result 11836 states and 31086 transitions. [2022-01-18 11:25:07,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:25:07,624 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:07,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:07,640 INFO L225 Difference]: With dead ends: 11836 [2022-01-18 11:25:07,640 INFO L226 Difference]: Without dead ends: 11539 [2022-01-18 11:25:07,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1011, Invalid=3411, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:25:07,641 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1178 mSDsluCounter, 7459 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 7699 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:07,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 7699 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:07,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2022-01-18 11:25:07,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 5451. [2022-01-18 11:25:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.629724770642202) internal successors, (14332), 5450 states have internal predecessors, (14332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:07,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14332 transitions. [2022-01-18 11:25:07,740 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14332 transitions. Word has length 135 [2022-01-18 11:25:07,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:07,740 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14332 transitions. [2022-01-18 11:25:07,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:07,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14332 transitions. [2022-01-18 11:25:07,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:07,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:07,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:07,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 11:25:07,746 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:07,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:07,746 INFO L85 PathProgramCache]: Analyzing trace with hash -869233695, now seen corresponding path program 154 times [2022-01-18 11:25:07,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:07,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571448347] [2022-01-18 11:25:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:07,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:08,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:08,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:08,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571448347] [2022-01-18 11:25:08,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571448347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:08,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:08,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:08,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896402325] [2022-01-18 11:25:08,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:08,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:08,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:08,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:08,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:08,109 INFO L87 Difference]: Start difference. First operand 5451 states and 14332 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:10,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:10,243 INFO L93 Difference]: Finished difference Result 11736 states and 30832 transitions. [2022-01-18 11:25:10,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:25:10,243 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:10,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:10,257 INFO L225 Difference]: With dead ends: 11736 [2022-01-18 11:25:10,257 INFO L226 Difference]: Without dead ends: 11470 [2022-01-18 11:25:10,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=831, Invalid=2829, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:25:10,258 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1137 mSDsluCounter, 6927 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 7182 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:10,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 7182 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:10,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11470 states. [2022-01-18 11:25:10,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11470 to 5455. [2022-01-18 11:25:10,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.629079574624129) internal successors, (14339), 5454 states have internal predecessors, (14339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14339 transitions. [2022-01-18 11:25:10,354 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14339 transitions. Word has length 135 [2022-01-18 11:25:10,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:10,354 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14339 transitions. [2022-01-18 11:25:10,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14339 transitions. [2022-01-18 11:25:10,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:10,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:10,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:10,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 11:25:10,361 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:10,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:10,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1256885129, now seen corresponding path program 155 times [2022-01-18 11:25:10,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:10,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065190633] [2022-01-18 11:25:10,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:10,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:10,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:10,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:10,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065190633] [2022-01-18 11:25:10,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065190633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:10,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:10,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:10,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962130464] [2022-01-18 11:25:10,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:10,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:10,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:10,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:10,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:10,723 INFO L87 Difference]: Start difference. First operand 5455 states and 14339 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:12,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:12,746 INFO L93 Difference]: Finished difference Result 11602 states and 30484 transitions. [2022-01-18 11:25:12,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:25:12,746 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:12,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:12,761 INFO L225 Difference]: With dead ends: 11602 [2022-01-18 11:25:12,761 INFO L226 Difference]: Without dead ends: 11299 [2022-01-18 11:25:12,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=781, Invalid=2525, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:25:12,762 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1100 mSDsluCounter, 6800 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 7061 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:12,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1100 Valid, 7061 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:12,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11299 states. [2022-01-18 11:25:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11299 to 5415. [2022-01-18 11:25:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.6333579608422606) internal successors, (14257), 5414 states have internal predecessors, (14257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:12,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14257 transitions. [2022-01-18 11:25:12,855 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14257 transitions. Word has length 135 [2022-01-18 11:25:12,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:12,855 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14257 transitions. [2022-01-18 11:25:12,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:12,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14257 transitions. [2022-01-18 11:25:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:12,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:12,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:12,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-18 11:25:12,861 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:12,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:12,861 INFO L85 PathProgramCache]: Analyzing trace with hash 423770293, now seen corresponding path program 156 times [2022-01-18 11:25:12,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:12,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457145062] [2022-01-18 11:25:12,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:12,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:13,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:13,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:13,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457145062] [2022-01-18 11:25:13,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457145062] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:13,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:13,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:13,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260893972] [2022-01-18 11:25:13,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:13,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:13,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:13,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:13,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:13,207 INFO L87 Difference]: Start difference. First operand 5415 states and 14257 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:15,651 INFO L93 Difference]: Finished difference Result 11510 states and 30263 transitions. [2022-01-18 11:25:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:25:15,652 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:15,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:15,665 INFO L225 Difference]: With dead ends: 11510 [2022-01-18 11:25:15,665 INFO L226 Difference]: Without dead ends: 11219 [2022-01-18 11:25:15,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=979, Invalid=3053, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:25:15,665 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1151 mSDsluCounter, 6968 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 7242 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:15,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 7242 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:15,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11219 states. [2022-01-18 11:25:15,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11219 to 5491. [2022-01-18 11:25:15,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6342440801457196) internal successors, (14462), 5490 states have internal predecessors, (14462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:15,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14462 transitions. [2022-01-18 11:25:15,758 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14462 transitions. Word has length 135 [2022-01-18 11:25:15,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:15,758 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14462 transitions. [2022-01-18 11:25:15,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:15,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14462 transitions. [2022-01-18 11:25:15,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:15,764 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:15,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:15,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-18 11:25:15,764 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:15,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:15,765 INFO L85 PathProgramCache]: Analyzing trace with hash 132064265, now seen corresponding path program 157 times [2022-01-18 11:25:15,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:15,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627728884] [2022-01-18 11:25:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:15,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:16,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:16,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:16,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627728884] [2022-01-18 11:25:16,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627728884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:16,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:16,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:16,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548765095] [2022-01-18 11:25:16,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:16,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:16,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:16,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:16,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:16,148 INFO L87 Difference]: Start difference. First operand 5491 states and 14462 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:18,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:18,281 INFO L93 Difference]: Finished difference Result 11524 states and 30293 transitions. [2022-01-18 11:25:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:25:18,282 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:18,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:18,297 INFO L225 Difference]: With dead ends: 11524 [2022-01-18 11:25:18,297 INFO L226 Difference]: Without dead ends: 11258 [2022-01-18 11:25:18,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=805, Invalid=2735, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:25:18,298 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1121 mSDsluCounter, 7049 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 7315 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:18,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1121 Valid, 7315 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:18,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-01-18 11:25:18,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 5495. [2022-01-18 11:25:18,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.633600291226793) internal successors, (14469), 5494 states have internal predecessors, (14469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:18,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14469 transitions. [2022-01-18 11:25:18,401 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14469 transitions. Word has length 135 [2022-01-18 11:25:18,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:18,402 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14469 transitions. [2022-01-18 11:25:18,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:18,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14469 transitions. [2022-01-18 11:25:18,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:18,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:18,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:18,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-18 11:25:18,408 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:18,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:18,408 INFO L85 PathProgramCache]: Analyzing trace with hash -2036784207, now seen corresponding path program 158 times [2022-01-18 11:25:18,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:18,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797728848] [2022-01-18 11:25:18,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:18,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:18,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:18,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797728848] [2022-01-18 11:25:18,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797728848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:18,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:18,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:18,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873810012] [2022-01-18 11:25:18,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:18,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:18,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:18,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:18,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:18,760 INFO L87 Difference]: Start difference. First operand 5495 states and 14469 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:20,997 INFO L93 Difference]: Finished difference Result 11486 states and 30193 transitions. [2022-01-18 11:25:20,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:25:20,997 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:20,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:21,012 INFO L225 Difference]: With dead ends: 11486 [2022-01-18 11:25:21,012 INFO L226 Difference]: Without dead ends: 11215 [2022-01-18 11:25:21,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=863, Invalid=2797, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:25:21,013 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1091 mSDsluCounter, 7358 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 7626 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:21,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1091 Valid, 7626 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:21,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11215 states. [2022-01-18 11:25:21,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11215 to 5487. [2022-01-18 11:25:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.6341596791833757) internal successors, (14451), 5486 states have internal predecessors, (14451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14451 transitions. [2022-01-18 11:25:21,109 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14451 transitions. Word has length 135 [2022-01-18 11:25:21,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:21,109 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14451 transitions. [2022-01-18 11:25:21,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:21,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14451 transitions. [2022-01-18 11:25:21,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:21,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:21,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:21,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-18 11:25:21,114 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:21,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:21,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1664004041, now seen corresponding path program 159 times [2022-01-18 11:25:21,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:21,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545324698] [2022-01-18 11:25:21,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:21,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:21,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:21,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545324698] [2022-01-18 11:25:21,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545324698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:21,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:21,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:21,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754428908] [2022-01-18 11:25:21,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:21,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:21,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:21,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:21,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:21,467 INFO L87 Difference]: Start difference. First operand 5487 states and 14451 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:23,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:23,907 INFO L93 Difference]: Finished difference Result 11656 states and 30631 transitions. [2022-01-18 11:25:23,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:25:23,907 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:23,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:23,922 INFO L225 Difference]: With dead ends: 11656 [2022-01-18 11:25:23,922 INFO L226 Difference]: Without dead ends: 11359 [2022-01-18 11:25:23,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=988, Invalid=3302, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:25:23,923 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1176 mSDsluCounter, 7158 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 7416 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:23,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 7416 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:23,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2022-01-18 11:25:24,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 5491. [2022-01-18 11:25:24,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6335154826958105) internal successors, (14458), 5490 states have internal predecessors, (14458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:24,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14458 transitions. [2022-01-18 11:25:24,024 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14458 transitions. Word has length 135 [2022-01-18 11:25:24,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:24,024 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14458 transitions. [2022-01-18 11:25:24,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:24,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14458 transitions. [2022-01-18 11:25:24,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:24,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:24,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:24,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-18 11:25:24,030 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:24,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:24,030 INFO L85 PathProgramCache]: Analyzing trace with hash 214385475, now seen corresponding path program 160 times [2022-01-18 11:25:24,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:24,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482402692] [2022-01-18 11:25:24,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:24,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:24,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:24,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482402692] [2022-01-18 11:25:24,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482402692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:24,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:24,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:24,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277636351] [2022-01-18 11:25:24,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:24,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:24,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:24,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:24,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:24,423 INFO L87 Difference]: Start difference. First operand 5491 states and 14458 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:26,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:26,616 INFO L93 Difference]: Finished difference Result 11540 states and 30333 transitions. [2022-01-18 11:25:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:25:26,616 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:26,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:26,631 INFO L225 Difference]: With dead ends: 11540 [2022-01-18 11:25:26,631 INFO L226 Difference]: Without dead ends: 11274 [2022-01-18 11:25:26,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=834, Invalid=2826, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:25:26,632 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1131 mSDsluCounter, 7056 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 7323 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:26,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 7323 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:26,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11274 states. [2022-01-18 11:25:26,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11274 to 5495. [2022-01-18 11:25:26,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.6328722242446303) internal successors, (14465), 5494 states have internal predecessors, (14465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14465 transitions. [2022-01-18 11:25:26,725 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14465 transitions. Word has length 135 [2022-01-18 11:25:26,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:26,725 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14465 transitions. [2022-01-18 11:25:26,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14465 transitions. [2022-01-18 11:25:26,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:26,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:26,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:26,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-18 11:25:26,730 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:26,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:26,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1954462997, now seen corresponding path program 161 times [2022-01-18 11:25:26,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:26,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679302832] [2022-01-18 11:25:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:26,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:27,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:27,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679302832] [2022-01-18 11:25:27,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679302832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:27,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:27,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:27,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481263938] [2022-01-18 11:25:27,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:27,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:27,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:27,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:27,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:27,064 INFO L87 Difference]: Start difference. First operand 5495 states and 14465 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:29,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:29,094 INFO L93 Difference]: Finished difference Result 11486 states and 30189 transitions. [2022-01-18 11:25:29,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:25:29,095 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:29,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:29,109 INFO L225 Difference]: With dead ends: 11486 [2022-01-18 11:25:29,109 INFO L226 Difference]: Without dead ends: 11211 [2022-01-18 11:25:29,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=835, Invalid=2705, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:25:29,109 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1108 mSDsluCounter, 6199 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 6484 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:29,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 6484 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2022-01-18 11:25:29,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 5483. [2022-01-18 11:25:29,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6340751550529005) internal successors, (14440), 5482 states have internal predecessors, (14440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14440 transitions. [2022-01-18 11:25:29,204 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14440 transitions. Word has length 135 [2022-01-18 11:25:29,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:29,204 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14440 transitions. [2022-01-18 11:25:29,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:29,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14440 transitions. [2022-01-18 11:25:29,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:29,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:29,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:29,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-18 11:25:29,211 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:29,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:29,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1721198247, now seen corresponding path program 162 times [2022-01-18 11:25:29,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:29,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334579128] [2022-01-18 11:25:29,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:29,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:29,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:29,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334579128] [2022-01-18 11:25:29,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334579128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:29,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:29,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:29,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110004443] [2022-01-18 11:25:29,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:29,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:29,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:29,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:29,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:29,590 INFO L87 Difference]: Start difference. First operand 5483 states and 14440 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:32,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:32,407 INFO L93 Difference]: Finished difference Result 11823 states and 31059 transitions. [2022-01-18 11:25:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:25:32,407 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:32,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:32,424 INFO L225 Difference]: With dead ends: 11823 [2022-01-18 11:25:32,424 INFO L226 Difference]: Without dead ends: 11433 [2022-01-18 11:25:32,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1193, Invalid=3919, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:25:32,425 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1254 mSDsluCounter, 7268 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 7521 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:32,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1254 Valid, 7521 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:32,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11433 states. [2022-01-18 11:25:32,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11433 to 5495. [2022-01-18 11:25:32,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.632144157262468) internal successors, (14461), 5494 states have internal predecessors, (14461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:32,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14461 transitions. [2022-01-18 11:25:32,531 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14461 transitions. Word has length 135 [2022-01-18 11:25:32,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:32,532 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14461 transitions. [2022-01-18 11:25:32,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:32,532 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14461 transitions. [2022-01-18 11:25:32,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:32,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:32,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:32,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-18 11:25:32,537 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:32,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:32,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1327733211, now seen corresponding path program 163 times [2022-01-18 11:25:32,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:32,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497104678] [2022-01-18 11:25:32,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:32,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:32,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:32,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:32,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497104678] [2022-01-18 11:25:32,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497104678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:32,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:32,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:32,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088876024] [2022-01-18 11:25:32,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:32,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:32,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:32,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:32,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:32,884 INFO L87 Difference]: Start difference. First operand 5495 states and 14461 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:35,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:35,398 INFO L93 Difference]: Finished difference Result 11672 states and 30663 transitions. [2022-01-18 11:25:35,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:25:35,398 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:35,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:35,411 INFO L225 Difference]: With dead ends: 11672 [2022-01-18 11:25:35,411 INFO L226 Difference]: Without dead ends: 11375 [2022-01-18 11:25:35,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1012, Invalid=3410, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:25:35,412 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1173 mSDsluCounter, 7581 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 7831 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:35,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 7831 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:35,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11375 states. [2022-01-18 11:25:35,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11375 to 5499. [2022-01-18 11:25:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.6315023644961806) internal successors, (14468), 5498 states have internal predecessors, (14468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14468 transitions. [2022-01-18 11:25:35,499 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14468 transitions. Word has length 135 [2022-01-18 11:25:35,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:35,499 INFO L470 AbstractCegarLoop]: Abstraction has 5499 states and 14468 transitions. [2022-01-18 11:25:35,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:35,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14468 transitions. [2022-01-18 11:25:35,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:35,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:35,505 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] [2022-01-18 11:25:35,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-18 11:25:35,505 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:35,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:35,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1088844569, now seen corresponding path program 164 times [2022-01-18 11:25:35,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:35,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191883102] [2022-01-18 11:25:35,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:35,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:35,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:35,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:35,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191883102] [2022-01-18 11:25:35,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191883102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:35,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:35,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:35,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788584818] [2022-01-18 11:25:35,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:35,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:35,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:35,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:35,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:35,875 INFO L87 Difference]: Start difference. First operand 5499 states and 14468 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:38,035 INFO L93 Difference]: Finished difference Result 11556 states and 30365 transitions. [2022-01-18 11:25:38,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:25:38,035 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:38,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:38,052 INFO L225 Difference]: With dead ends: 11556 [2022-01-18 11:25:38,052 INFO L226 Difference]: Without dead ends: 11290 [2022-01-18 11:25:38,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=830, Invalid=2830, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:25:38,053 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1124 mSDsluCounter, 7041 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 7306 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:38,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 7306 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:38,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11290 states. [2022-01-18 11:25:38,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11290 to 5503. [2022-01-18 11:25:38,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5503 states, 5502 states have (on average 2.6308615049073065) internal successors, (14475), 5502 states have internal predecessors, (14475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:38,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 14475 transitions. [2022-01-18 11:25:38,162 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 14475 transitions. Word has length 135 [2022-01-18 11:25:38,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:38,162 INFO L470 AbstractCegarLoop]: Abstraction has 5503 states and 14475 transitions. [2022-01-18 11:25:38,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:38,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 14475 transitions. [2022-01-18 11:25:38,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:38,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:38,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:38,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-18 11:25:38,168 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:38,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:38,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1037274255, now seen corresponding path program 165 times [2022-01-18 11:25:38,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:38,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348354232] [2022-01-18 11:25:38,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:38,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:38,556 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 11:25:38,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:38,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348354232] [2022-01-18 11:25:38,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348354232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:38,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:38,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:38,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777265518] [2022-01-18 11:25:38,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:38,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:38,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:38,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:38,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:38,571 INFO L87 Difference]: Start difference. First operand 5503 states and 14475 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:40,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:40,637 INFO L93 Difference]: Finished difference Result 11494 states and 30199 transitions. [2022-01-18 11:25:40,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:25:40,637 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:40,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:40,652 INFO L225 Difference]: With dead ends: 11494 [2022-01-18 11:25:40,652 INFO L226 Difference]: Without dead ends: 11199 [2022-01-18 11:25:40,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=813, Invalid=2609, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:25:40,653 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1093 mSDsluCounter, 6547 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 6826 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:40,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 6826 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:40,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11199 states. [2022-01-18 11:25:40,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11199 to 5471. [2022-01-18 11:25:40,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 2.63382084095064) internal successors, (14407), 5470 states have internal predecessors, (14407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:40,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 14407 transitions. [2022-01-18 11:25:40,752 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 14407 transitions. Word has length 135 [2022-01-18 11:25:40,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:40,752 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 14407 transitions. [2022-01-18 11:25:40,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:40,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 14407 transitions. [2022-01-18 11:25:40,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:40,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:40,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:40,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-18 11:25:40,759 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:40,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:40,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1774088619, now seen corresponding path program 166 times [2022-01-18 11:25:40,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:40,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694400338] [2022-01-18 11:25:40,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:40,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:41,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:41,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694400338] [2022-01-18 11:25:41,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694400338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:41,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:41,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:41,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944469378] [2022-01-18 11:25:41,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:41,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:41,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:41,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:41,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:41,137 INFO L87 Difference]: Start difference. First operand 5471 states and 14407 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:44,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:44,314 INFO L93 Difference]: Finished difference Result 12065 states and 31609 transitions. [2022-01-18 11:25:44,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:25:44,315 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:44,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:44,329 INFO L225 Difference]: With dead ends: 12065 [2022-01-18 11:25:44,329 INFO L226 Difference]: Without dead ends: 11644 [2022-01-18 11:25:44,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1375, Invalid=4325, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:25:44,329 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1503 mSDsluCounter, 7857 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 8093 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:44,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 8093 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11644 states. [2022-01-18 11:25:44,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11644 to 5475. [2022-01-18 11:25:44,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6331750091340886) internal successors, (14414), 5474 states have internal predecessors, (14414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:44,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14414 transitions. [2022-01-18 11:25:44,422 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14414 transitions. Word has length 135 [2022-01-18 11:25:44,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:44,422 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14414 transitions. [2022-01-18 11:25:44,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:44,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14414 transitions. [2022-01-18 11:25:44,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:44,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:44,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:44,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-18 11:25:44,428 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:44,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:44,428 INFO L85 PathProgramCache]: Analyzing trace with hash -676868481, now seen corresponding path program 167 times [2022-01-18 11:25:44,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:44,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939070827] [2022-01-18 11:25:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:44,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:44,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:44,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939070827] [2022-01-18 11:25:44,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939070827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:44,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:44,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:44,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569301481] [2022-01-18 11:25:44,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:44,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:44,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:44,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:44,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:44,780 INFO L87 Difference]: Start difference. First operand 5475 states and 14414 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:47,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:47,591 INFO L93 Difference]: Finished difference Result 11839 states and 31091 transitions. [2022-01-18 11:25:47,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:25:47,592 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:47,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:47,607 INFO L225 Difference]: With dead ends: 11839 [2022-01-18 11:25:47,607 INFO L226 Difference]: Without dead ends: 11449 [2022-01-18 11:25:47,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1212, Invalid=4044, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:25:47,608 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1231 mSDsluCounter, 7729 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 7973 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:47,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1231 Valid, 7973 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:47,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2022-01-18 11:25:47,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 5487. [2022-01-18 11:25:47,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.6312431644185197) internal successors, (14435), 5486 states have internal predecessors, (14435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:47,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14435 transitions. [2022-01-18 11:25:47,700 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14435 transitions. Word has length 135 [2022-01-18 11:25:47,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:47,701 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14435 transitions. [2022-01-18 11:25:47,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:47,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14435 transitions. [2022-01-18 11:25:47,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:47,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:47,706 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] [2022-01-18 11:25:47,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-18 11:25:47,706 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:47,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1821964685, now seen corresponding path program 168 times [2022-01-18 11:25:47,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:47,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003379620] [2022-01-18 11:25:47,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:47,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:48,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:48,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:48,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003379620] [2022-01-18 11:25:48,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003379620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:48,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:48,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:48,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993051384] [2022-01-18 11:25:48,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:48,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:48,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:48,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:48,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:48,063 INFO L87 Difference]: Start difference. First operand 5487 states and 14435 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:50,533 INFO L93 Difference]: Finished difference Result 11688 states and 30695 transitions. [2022-01-18 11:25:50,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:25:50,534 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:50,548 INFO L225 Difference]: With dead ends: 11688 [2022-01-18 11:25:50,548 INFO L226 Difference]: Without dead ends: 11391 [2022-01-18 11:25:50,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1002, Invalid=3420, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:25:50,549 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1161 mSDsluCounter, 8000 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 8238 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:50,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 8238 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11391 states. [2022-01-18 11:25:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11391 to 5491. [2022-01-18 11:25:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6306010928961747) internal successors, (14442), 5490 states have internal predecessors, (14442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14442 transitions. [2022-01-18 11:25:50,652 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14442 transitions. Word has length 135 [2022-01-18 11:25:50,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:50,652 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14442 transitions. [2022-01-18 11:25:50,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:50,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14442 transitions. [2022-01-18 11:25:50,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:50,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:50,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:50,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-18 11:25:50,658 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:50,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:50,659 INFO L85 PathProgramCache]: Analyzing trace with hash 56424831, now seen corresponding path program 169 times [2022-01-18 11:25:50,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:50,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980352639] [2022-01-18 11:25:50,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:50,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:51,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:51,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:51,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980352639] [2022-01-18 11:25:51,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980352639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:51,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:51,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:51,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875532494] [2022-01-18 11:25:51,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:51,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:51,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:51,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:51,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:51,014 INFO L87 Difference]: Start difference. First operand 5491 states and 14442 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:53,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:53,136 INFO L93 Difference]: Finished difference Result 11572 states and 30397 transitions. [2022-01-18 11:25:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:25:53,137 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:53,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:53,152 INFO L225 Difference]: With dead ends: 11572 [2022-01-18 11:25:53,152 INFO L226 Difference]: Without dead ends: 11306 [2022-01-18 11:25:53,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=825, Invalid=2835, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:25:53,153 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1113 mSDsluCounter, 7073 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 7334 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:53,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 7334 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:53,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11306 states. [2022-01-18 11:25:53,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11306 to 5495. [2022-01-18 11:25:53,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.629959956315981) internal successors, (14449), 5494 states have internal predecessors, (14449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:53,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14449 transitions. [2022-01-18 11:25:53,243 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14449 transitions. Word has length 135 [2022-01-18 11:25:53,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:53,243 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14449 transitions. [2022-01-18 11:25:53,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:53,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14449 transitions. [2022-01-18 11:25:53,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:53,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:53,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:53,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-18 11:25:53,249 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:53,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:53,249 INFO L85 PathProgramCache]: Analyzing trace with hash -2112423641, now seen corresponding path program 170 times [2022-01-18 11:25:53,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:53,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810561578] [2022-01-18 11:25:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:53,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:53,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:53,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:53,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810561578] [2022-01-18 11:25:53,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810561578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:53,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:53,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:53,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673232007] [2022-01-18 11:25:53,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:53,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:53,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:53,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:53,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:53,640 INFO L87 Difference]: Start difference. First operand 5495 states and 14449 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:55,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:55,619 INFO L93 Difference]: Finished difference Result 11486 states and 30173 transitions. [2022-01-18 11:25:55,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:25:55,619 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:55,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:55,633 INFO L225 Difference]: With dead ends: 11486 [2022-01-18 11:25:55,634 INFO L226 Difference]: Without dead ends: 11195 [2022-01-18 11:25:55,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=787, Invalid=2519, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:25:55,634 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1091 mSDsluCounter, 6552 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 6829 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:55,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1091 Valid, 6829 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:25:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11195 states. [2022-01-18 11:25:55,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11195 to 5467. [2022-01-18 11:25:55,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.6337358214416393) internal successors, (14396), 5466 states have internal predecessors, (14396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:55,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14396 transitions. [2022-01-18 11:25:55,724 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14396 transitions. Word has length 135 [2022-01-18 11:25:55,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:55,724 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14396 transitions. [2022-01-18 11:25:55,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:55,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14396 transitions. [2022-01-18 11:25:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:55,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:55,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:55,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-18 11:25:55,730 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:55,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:55,730 INFO L85 PathProgramCache]: Analyzing trace with hash -773333239, now seen corresponding path program 171 times [2022-01-18 11:25:55,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:55,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963221032] [2022-01-18 11:25:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:55,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:56,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:56,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963221032] [2022-01-18 11:25:56,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963221032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:56,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:56,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:56,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890236195] [2022-01-18 11:25:56,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:56,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:56,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:56,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:56,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:56,120 INFO L87 Difference]: Start difference. First operand 5467 states and 14396 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:59,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:25:59,545 INFO L93 Difference]: Finished difference Result 11819 states and 30881 transitions. [2022-01-18 11:25:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 11:25:59,545 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:25:59,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:25:59,557 INFO L225 Difference]: With dead ends: 11819 [2022-01-18 11:25:59,557 INFO L226 Difference]: Without dead ends: 10995 [2022-01-18 11:25:59,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 994 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1531, Invalid=4631, Unknown=0, NotChecked=0, Total=6162 [2022-01-18 11:25:59,558 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1635 mSDsluCounter, 8094 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 8356 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:25:59,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1635 Valid, 8356 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:25:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10995 states. [2022-01-18 11:25:59,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10995 to 5519. [2022-01-18 11:25:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5519 states, 5518 states have (on average 2.6254077564334906) internal successors, (14487), 5518 states have internal predecessors, (14487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:59,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 14487 transitions. [2022-01-18 11:25:59,635 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 14487 transitions. Word has length 135 [2022-01-18 11:25:59,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:25:59,635 INFO L470 AbstractCegarLoop]: Abstraction has 5519 states and 14487 transitions. [2022-01-18 11:25:59,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:25:59,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 14487 transitions. [2022-01-18 11:25:59,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:25:59,641 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:25:59,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:25:59,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-18 11:25:59,641 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:25:59,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:25:59,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1008716417, now seen corresponding path program 172 times [2022-01-18 11:25:59,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:25:59,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186372174] [2022-01-18 11:25:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:25:59,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:25:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:25:59,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:25:59,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:25:59,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186372174] [2022-01-18 11:25:59,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186372174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:25:59,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:25:59,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:25:59,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58534384] [2022-01-18 11:25:59,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:25:59,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:25:59,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:25:59,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:25:59,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:25:59,992 INFO L87 Difference]: Start difference. First operand 5519 states and 14487 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:03,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:03,011 INFO L93 Difference]: Finished difference Result 11645 states and 30418 transitions. [2022-01-18 11:26:03,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:26:03,012 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:03,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:03,027 INFO L225 Difference]: With dead ends: 11645 [2022-01-18 11:26:03,027 INFO L226 Difference]: Without dead ends: 11224 [2022-01-18 11:26:03,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 888 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1360, Invalid=4340, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:26:03,028 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1539 mSDsluCounter, 7531 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 7791 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:03,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1539 Valid, 7791 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:03,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11224 states. [2022-01-18 11:26:03,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11224 to 5523. [2022-01-18 11:26:03,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 5522 states have (on average 2.62477363274176) internal successors, (14494), 5522 states have internal predecessors, (14494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:03,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 14494 transitions. [2022-01-18 11:26:03,120 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 14494 transitions. Word has length 135 [2022-01-18 11:26:03,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:03,120 INFO L470 AbstractCegarLoop]: Abstraction has 5523 states and 14494 transitions. [2022-01-18 11:26:03,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:03,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 14494 transitions. [2022-01-18 11:26:03,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:03,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:03,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:03,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-18 11:26:03,126 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:03,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:03,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2105936555, now seen corresponding path program 173 times [2022-01-18 11:26:03,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:03,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369002483] [2022-01-18 11:26:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:03,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:03,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:03,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369002483] [2022-01-18 11:26:03,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369002483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:03,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:03,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:03,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424517100] [2022-01-18 11:26:03,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:03,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:03,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:03,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:03,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:03,521 INFO L87 Difference]: Start difference. First operand 5523 states and 14494 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:06,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:06,351 INFO L93 Difference]: Finished difference Result 11419 states and 29900 transitions. [2022-01-18 11:26:06,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:26:06,352 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:06,366 INFO L225 Difference]: With dead ends: 11419 [2022-01-18 11:26:06,367 INFO L226 Difference]: Without dead ends: 11029 [2022-01-18 11:26:06,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1197, Invalid=4059, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:26:06,367 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1241 mSDsluCounter, 7882 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 8136 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:06,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1241 Valid, 8136 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:26:06,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11029 states. [2022-01-18 11:26:06,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11029 to 5535. [2022-01-18 11:26:06,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5535 states, 5534 states have (on average 2.6228767618359234) internal successors, (14515), 5534 states have internal predecessors, (14515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 14515 transitions. [2022-01-18 11:26:06,459 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 14515 transitions. Word has length 135 [2022-01-18 11:26:06,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:06,459 INFO L470 AbstractCegarLoop]: Abstraction has 5535 states and 14515 transitions. [2022-01-18 11:26:06,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:06,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 14515 transitions. [2022-01-18 11:26:06,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:06,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:06,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:06,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-18 11:26:06,465 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:06,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:06,465 INFO L85 PathProgramCache]: Analyzing trace with hash 960840351, now seen corresponding path program 174 times [2022-01-18 11:26:06,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:06,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525522719] [2022-01-18 11:26:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:06,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:06,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:06,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:06,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525522719] [2022-01-18 11:26:06,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525522719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:06,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:06,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:06,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393496911] [2022-01-18 11:26:06,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:06,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:06,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:06,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:06,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:06,821 INFO L87 Difference]: Start difference. First operand 5535 states and 14515 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:09,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:09,270 INFO L93 Difference]: Finished difference Result 11268 states and 29504 transitions. [2022-01-18 11:26:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:26:09,271 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:09,283 INFO L225 Difference]: With dead ends: 11268 [2022-01-18 11:26:09,283 INFO L226 Difference]: Without dead ends: 10971 [2022-01-18 11:26:09,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=992, Invalid=3430, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:26:09,284 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1198 mSDsluCounter, 7319 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 7587 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:09,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 7587 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:09,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2022-01-18 11:26:09,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 5539. [2022-01-18 11:26:09,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5539 states, 5538 states have (on average 2.6222462983026364) internal successors, (14522), 5538 states have internal predecessors, (14522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 14522 transitions. [2022-01-18 11:26:09,369 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 14522 transitions. Word has length 135 [2022-01-18 11:26:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:09,369 INFO L470 AbstractCegarLoop]: Abstraction has 5539 states and 14522 transitions. [2022-01-18 11:26:09,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:09,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 14522 transitions. [2022-01-18 11:26:09,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:09,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:09,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:09,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-18 11:26:09,375 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:09,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:09,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1455737429, now seen corresponding path program 175 times [2022-01-18 11:26:09,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:09,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781664633] [2022-01-18 11:26:09,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:09,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:09,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:09,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:09,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781664633] [2022-01-18 11:26:09,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781664633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:09,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:09,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:09,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920560887] [2022-01-18 11:26:09,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:09,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:09,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:09,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:09,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:09,734 INFO L87 Difference]: Start difference. First operand 5539 states and 14522 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:11,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:11,838 INFO L93 Difference]: Finished difference Result 11152 states and 29206 transitions. [2022-01-18 11:26:11,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:26:11,838 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:11,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:11,853 INFO L225 Difference]: With dead ends: 11152 [2022-01-18 11:26:11,854 INFO L226 Difference]: Without dead ends: 10886 [2022-01-18 11:26:11,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=819, Invalid=2841, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:26:11,854 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1126 mSDsluCounter, 7189 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 7462 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:11,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 7462 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:11,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10886 states. [2022-01-18 11:26:11,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10886 to 5543. [2022-01-18 11:26:11,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5543 states, 5542 states have (on average 2.621616744857452) internal successors, (14529), 5542 states have internal predecessors, (14529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:11,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5543 states to 5543 states and 14529 transitions. [2022-01-18 11:26:11,950 INFO L78 Accepts]: Start accepts. Automaton has 5543 states and 14529 transitions. Word has length 135 [2022-01-18 11:26:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:11,950 INFO L470 AbstractCegarLoop]: Abstraction has 5543 states and 14529 transitions. [2022-01-18 11:26:11,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 5543 states and 14529 transitions. [2022-01-18 11:26:11,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:11,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:11,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:11,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-18 11:26:11,956 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:11,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:11,956 INFO L85 PathProgramCache]: Analyzing trace with hash 670381395, now seen corresponding path program 176 times [2022-01-18 11:26:11,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:11,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910924368] [2022-01-18 11:26:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:11,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:12,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:12,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:12,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910924368] [2022-01-18 11:26:12,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910924368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:12,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:12,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:12,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763090976] [2022-01-18 11:26:12,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:12,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:12,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:12,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:12,309 INFO L87 Difference]: Start difference. First operand 5543 states and 14529 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:14,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:14,355 INFO L93 Difference]: Finished difference Result 11066 states and 28982 transitions. [2022-01-18 11:26:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:26:14,356 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:14,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:14,369 INFO L225 Difference]: With dead ends: 11066 [2022-01-18 11:26:14,369 INFO L226 Difference]: Without dead ends: 10519 [2022-01-18 11:26:14,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=777, Invalid=2529, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:26:14,369 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1098 mSDsluCounter, 7067 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 7346 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:14,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1098 Valid, 7346 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:14,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-01-18 11:26:14,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 5259. [2022-01-18 11:26:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 2.6222898440471663) internal successors, (13788), 5258 states have internal predecessors, (13788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:14,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 13788 transitions. [2022-01-18 11:26:14,458 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 13788 transitions. Word has length 135 [2022-01-18 11:26:14,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:14,458 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 13788 transitions. [2022-01-18 11:26:14,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:14,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 13788 transitions. [2022-01-18 11:26:14,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:14,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:14,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:14,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-18 11:26:14,464 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:14,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:14,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1095253461, now seen corresponding path program 177 times [2022-01-18 11:26:14,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:14,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623576591] [2022-01-18 11:26:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:14,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:14,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:14,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623576591] [2022-01-18 11:26:14,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623576591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:14,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:14,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:14,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580005406] [2022-01-18 11:26:14,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:14,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:14,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:14,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:14,846 INFO L87 Difference]: Start difference. First operand 5259 states and 13788 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:17,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:17,665 INFO L93 Difference]: Finished difference Result 10666 states and 27918 transitions. [2022-01-18 11:26:17,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:26:17,665 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:17,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:17,679 INFO L225 Difference]: With dead ends: 10666 [2022-01-18 11:26:17,679 INFO L226 Difference]: Without dead ends: 10291 [2022-01-18 11:26:17,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1264, Invalid=3992, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:26:17,680 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1256 mSDsluCounter, 6320 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 6574 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:17,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1256 Valid, 6574 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:17,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10291 states. [2022-01-18 11:26:17,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10291 to 5295. [2022-01-18 11:26:17,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6208915753683417) internal successors, (13875), 5294 states have internal predecessors, (13875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:17,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13875 transitions. [2022-01-18 11:26:17,761 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13875 transitions. Word has length 135 [2022-01-18 11:26:17,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:17,761 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13875 transitions. [2022-01-18 11:26:17,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:17,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13875 transitions. [2022-01-18 11:26:17,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:17,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:17,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:17,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-18 11:26:17,766 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:17,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:17,766 INFO L85 PathProgramCache]: Analyzing trace with hash 144449589, now seen corresponding path program 178 times [2022-01-18 11:26:17,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:17,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2257388] [2022-01-18 11:26:17,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:17,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:18,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:18,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2257388] [2022-01-18 11:26:18,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2257388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:18,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:18,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:18,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385575280] [2022-01-18 11:26:18,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:18,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:18,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:18,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:18,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:18,102 INFO L87 Difference]: Start difference. First operand 5295 states and 13875 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:20,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:20,443 INFO L93 Difference]: Finished difference Result 10526 states and 27541 transitions. [2022-01-18 11:26:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:26:20,444 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:20,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:20,456 INFO L225 Difference]: With dead ends: 10526 [2022-01-18 11:26:20,456 INFO L226 Difference]: Without dead ends: 10235 [2022-01-18 11:26:20,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1040, Invalid=3382, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:26:20,457 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1186 mSDsluCounter, 6666 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 6900 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:20,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1186 Valid, 6900 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:20,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10235 states. [2022-01-18 11:26:20,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10235 to 5299. [2022-01-18 11:26:20,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6202340505851263) internal successors, (13882), 5298 states have internal predecessors, (13882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:20,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13882 transitions. [2022-01-18 11:26:20,548 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13882 transitions. Word has length 135 [2022-01-18 11:26:20,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:20,548 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13882 transitions. [2022-01-18 11:26:20,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:20,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13882 transitions. [2022-01-18 11:26:20,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:20,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:20,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:20,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-18 11:26:20,554 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:20,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:20,554 INFO L85 PathProgramCache]: Analyzing trace with hash -147256439, now seen corresponding path program 179 times [2022-01-18 11:26:20,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:20,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549671398] [2022-01-18 11:26:20,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:20,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:20,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:20,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549671398] [2022-01-18 11:26:20,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549671398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:20,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:20,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:20,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548036882] [2022-01-18 11:26:20,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:20,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:20,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:20,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:20,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:20,908 INFO L87 Difference]: Start difference. First operand 5299 states and 13882 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:22,986 INFO L93 Difference]: Finished difference Result 10388 states and 27169 transitions. [2022-01-18 11:26:22,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:26:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:23,001 INFO L225 Difference]: With dead ends: 10388 [2022-01-18 11:26:23,001 INFO L226 Difference]: Without dead ends: 10122 [2022-01-18 11:26:23,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=799, Invalid=2507, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:26:23,002 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1146 mSDsluCounter, 6894 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 7108 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:23,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 7108 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:23,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10122 states. [2022-01-18 11:26:23,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10122 to 5303. [2022-01-18 11:26:23,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.619577517917767) internal successors, (13889), 5302 states have internal predecessors, (13889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:23,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13889 transitions. [2022-01-18 11:26:23,084 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13889 transitions. Word has length 135 [2022-01-18 11:26:23,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:23,084 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13889 transitions. [2022-01-18 11:26:23,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:23,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13889 transitions. [2022-01-18 11:26:23,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:23,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:23,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:23,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-18 11:26:23,089 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:23,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:23,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1978862385, now seen corresponding path program 180 times [2022-01-18 11:26:23,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:23,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062165556] [2022-01-18 11:26:23,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:23,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:23,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:23,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:23,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062165556] [2022-01-18 11:26:23,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062165556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:23,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:23,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:23,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921004597] [2022-01-18 11:26:23,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:23,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:23,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:23,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:23,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:23,441 INFO L87 Difference]: Start difference. First operand 5303 states and 13889 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:25,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:25,494 INFO L93 Difference]: Finished difference Result 10370 states and 27124 transitions. [2022-01-18 11:26:25,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:26:25,494 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:25,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:25,507 INFO L225 Difference]: With dead ends: 10370 [2022-01-18 11:26:25,508 INFO L226 Difference]: Without dead ends: 10087 [2022-01-18 11:26:25,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=855, Invalid=2805, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:26:25,508 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1131 mSDsluCounter, 6966 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 7186 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:25,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 7186 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:25,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10087 states. [2022-01-18 11:26:25,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10087 to 5283. [2022-01-18 11:26:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 5282 states have (on average 2.622112836046952) internal successors, (13850), 5282 states have internal predecessors, (13850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 13850 transitions. [2022-01-18 11:26:25,596 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 13850 transitions. Word has length 135 [2022-01-18 11:26:25,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:25,596 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 13850 transitions. [2022-01-18 11:26:25,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:25,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 13850 transitions. [2022-01-18 11:26:25,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:25,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:25,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:25,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-18 11:26:25,601 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:25,602 INFO L85 PathProgramCache]: Analyzing trace with hash 522463993, now seen corresponding path program 181 times [2022-01-18 11:26:25,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:25,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525061529] [2022-01-18 11:26:25,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:25,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:25,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:25,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525061529] [2022-01-18 11:26:25,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525061529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:25,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:25,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:25,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842194809] [2022-01-18 11:26:25,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:25,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:25,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:25,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:25,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:25,998 INFO L87 Difference]: Start difference. First operand 5283 states and 13850 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:29,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:29,214 INFO L93 Difference]: Finished difference Result 10426 states and 27278 transitions. [2022-01-18 11:26:29,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:26:29,214 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:29,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:29,224 INFO L225 Difference]: With dead ends: 10426 [2022-01-18 11:26:29,224 INFO L226 Difference]: Without dead ends: 10019 [2022-01-18 11:26:29,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1423, Invalid=4277, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:26:29,225 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1370 mSDsluCounter, 7560 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 7779 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:29,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 7779 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:29,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10019 states. [2022-01-18 11:26:29,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10019 to 5279. [2022-01-18 11:26:29,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 2.6220159151193636) internal successors, (13839), 5278 states have internal predecessors, (13839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:29,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 13839 transitions. [2022-01-18 11:26:29,296 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 13839 transitions. Word has length 135 [2022-01-18 11:26:29,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:29,297 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 13839 transitions. [2022-01-18 11:26:29,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:29,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 13839 transitions. [2022-01-18 11:26:29,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:29,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:29,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:29,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-18 11:26:29,302 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:29,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:29,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1045228823, now seen corresponding path program 182 times [2022-01-18 11:26:29,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:29,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374777501] [2022-01-18 11:26:29,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:29,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:29,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:29,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:29,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374777501] [2022-01-18 11:26:29,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374777501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:29,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:29,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:29,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217960656] [2022-01-18 11:26:29,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:29,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:29,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:29,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:29,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:29,653 INFO L87 Difference]: Start difference. First operand 5279 states and 13839 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:32,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:32,472 INFO L93 Difference]: Finished difference Result 10634 states and 27830 transitions. [2022-01-18 11:26:32,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:26:32,472 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:32,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:32,486 INFO L225 Difference]: With dead ends: 10634 [2022-01-18 11:26:32,487 INFO L226 Difference]: Without dead ends: 10259 [2022-01-18 11:26:32,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1238, Invalid=3874, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:26:32,487 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1274 mSDsluCounter, 7043 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 7280 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:32,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1274 Valid, 7280 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:32,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10259 states. [2022-01-18 11:26:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10259 to 5303. [2022-01-18 11:26:32,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.620331950207469) internal successors, (13893), 5302 states have internal predecessors, (13893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:32,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13893 transitions. [2022-01-18 11:26:32,582 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13893 transitions. Word has length 135 [2022-01-18 11:26:32,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:32,582 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13893 transitions. [2022-01-18 11:26:32,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:32,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13893 transitions. [2022-01-18 11:26:32,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:32,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:32,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:32,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-18 11:26:32,588 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:32,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:32,588 INFO L85 PathProgramCache]: Analyzing trace with hash 194474227, now seen corresponding path program 183 times [2022-01-18 11:26:32,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:32,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226848116] [2022-01-18 11:26:32,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:32,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:32,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:32,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:32,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226848116] [2022-01-18 11:26:32,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226848116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:32,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:32,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:32,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013928402] [2022-01-18 11:26:32,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:32,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:32,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:32,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:32,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:32,933 INFO L87 Difference]: Start difference. First operand 5303 states and 13893 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:35,455 INFO L93 Difference]: Finished difference Result 10586 states and 27706 transitions. [2022-01-18 11:26:35,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:26:35,456 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:35,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:35,467 INFO L225 Difference]: With dead ends: 10586 [2022-01-18 11:26:35,467 INFO L226 Difference]: Without dead ends: 10295 [2022-01-18 11:26:35,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1048, Invalid=3374, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:26:35,468 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1181 mSDsluCounter, 7420 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 7646 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:35,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1181 Valid, 7646 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:35,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2022-01-18 11:26:35,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5307. [2022-01-18 11:26:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.6196758386732) internal successors, (13900), 5306 states have internal predecessors, (13900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:35,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13900 transitions. [2022-01-18 11:26:35,543 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13900 transitions. Word has length 135 [2022-01-18 11:26:35,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:35,543 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13900 transitions. [2022-01-18 11:26:35,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:35,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13900 transitions. [2022-01-18 11:26:35,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:35,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:35,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:35,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-18 11:26:35,549 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:35,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:35,549 INFO L85 PathProgramCache]: Analyzing trace with hash -97231801, now seen corresponding path program 184 times [2022-01-18 11:26:35,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:35,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823603924] [2022-01-18 11:26:35,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:35,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:35,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:35,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823603924] [2022-01-18 11:26:35,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823603924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:35,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:35,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:35,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277350857] [2022-01-18 11:26:35,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:35,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:35,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:35,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:35,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:35,909 INFO L87 Difference]: Start difference. First operand 5307 states and 13900 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:38,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:38,053 INFO L93 Difference]: Finished difference Result 10472 states and 27400 transitions. [2022-01-18 11:26:38,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:26:38,053 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:38,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:38,067 INFO L225 Difference]: With dead ends: 10472 [2022-01-18 11:26:38,067 INFO L226 Difference]: Without dead ends: 10206 [2022-01-18 11:26:38,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=825, Invalid=2597, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:26:38,068 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1140 mSDsluCounter, 6956 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 7178 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:38,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 7178 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:38,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10206 states. [2022-01-18 11:26:38,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10206 to 5311. [2022-01-18 11:26:38,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.619020715630885) internal successors, (13907), 5310 states have internal predecessors, (13907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:38,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13907 transitions. [2022-01-18 11:26:38,163 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13907 transitions. Word has length 135 [2022-01-18 11:26:38,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:38,163 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13907 transitions. [2022-01-18 11:26:38,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:38,163 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13907 transitions. [2022-01-18 11:26:38,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:38,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:38,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:38,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-18 11:26:38,169 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:38,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:38,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2028887023, now seen corresponding path program 185 times [2022-01-18 11:26:38,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:38,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225916011] [2022-01-18 11:26:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:38,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:38,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:38,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225916011] [2022-01-18 11:26:38,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225916011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:38,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:38,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:38,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020129349] [2022-01-18 11:26:38,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:38,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:38,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:38,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:38,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:38,528 INFO L87 Difference]: Start difference. First operand 5311 states and 13907 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:40,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:40,670 INFO L93 Difference]: Finished difference Result 10434 states and 27300 transitions. [2022-01-18 11:26:40,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:26:40,671 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:40,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:40,684 INFO L225 Difference]: With dead ends: 10434 [2022-01-18 11:26:40,685 INFO L226 Difference]: Without dead ends: 10151 [2022-01-18 11:26:40,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=858, Invalid=2802, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:26:40,685 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1117 mSDsluCounter, 6962 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 7197 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:40,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 7197 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:40,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10151 states. [2022-01-18 11:26:40,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10151 to 5291. [2022-01-18 11:26:40,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 2.620037807183365) internal successors, (13860), 5290 states have internal predecessors, (13860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:40,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 13860 transitions. [2022-01-18 11:26:40,770 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 13860 transitions. Word has length 135 [2022-01-18 11:26:40,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:40,771 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 13860 transitions. [2022-01-18 11:26:40,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 13860 transitions. [2022-01-18 11:26:40,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:40,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:40,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:40,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-18 11:26:40,776 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:40,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:40,776 INFO L85 PathProgramCache]: Analyzing trace with hash 728763641, now seen corresponding path program 186 times [2022-01-18 11:26:40,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:40,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613818522] [2022-01-18 11:26:40,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:40,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:41,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:41,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613818522] [2022-01-18 11:26:41,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613818522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:41,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:41,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:41,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974601505] [2022-01-18 11:26:41,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:41,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:41,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:41,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:41,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:41,136 INFO L87 Difference]: Start difference. First operand 5291 states and 13860 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:43,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:43,528 INFO L93 Difference]: Finished difference Result 10494 states and 27453 transitions. [2022-01-18 11:26:43,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:26:43,529 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:43,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:43,542 INFO L225 Difference]: With dead ends: 10494 [2022-01-18 11:26:43,542 INFO L226 Difference]: Without dead ends: 10203 [2022-01-18 11:26:43,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1026, Invalid=3264, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:26:43,543 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1168 mSDsluCounter, 6991 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 7225 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:43,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1168 Valid, 7225 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:43,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10203 states. [2022-01-18 11:26:43,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10203 to 5299. [2022-01-18 11:26:43,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6194790486976216) internal successors, (13878), 5298 states have internal predecessors, (13878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13878 transitions. [2022-01-18 11:26:43,638 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13878 transitions. Word has length 135 [2022-01-18 11:26:43,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:43,638 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13878 transitions. [2022-01-18 11:26:43,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13878 transitions. [2022-01-18 11:26:43,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:43,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:43,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:43,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-18 11:26:43,644 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:43,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:43,644 INFO L85 PathProgramCache]: Analyzing trace with hash 437057613, now seen corresponding path program 187 times [2022-01-18 11:26:43,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:43,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684421566] [2022-01-18 11:26:43,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:43,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:43,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:43,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684421566] [2022-01-18 11:26:43,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684421566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:43,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:43,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:43,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578959789] [2022-01-18 11:26:43,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:43,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:43,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:43,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:43,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:43,985 INFO L87 Difference]: Start difference. First operand 5299 states and 13878 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:46,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:46,155 INFO L93 Difference]: Finished difference Result 10444 states and 27323 transitions. [2022-01-18 11:26:46,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:26:46,155 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:46,168 INFO L225 Difference]: With dead ends: 10444 [2022-01-18 11:26:46,168 INFO L226 Difference]: Without dead ends: 10178 [2022-01-18 11:26:46,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=853, Invalid=2687, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:26:46,169 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1156 mSDsluCounter, 6924 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 7143 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:46,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1156 Valid, 7143 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:46,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2022-01-18 11:26:46,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 5303. [2022-01-18 11:26:46,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618823085628065) internal successors, (13885), 5302 states have internal predecessors, (13885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:46,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13885 transitions. [2022-01-18 11:26:46,257 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13885 transitions. Word has length 135 [2022-01-18 11:26:46,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:46,257 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13885 transitions. [2022-01-18 11:26:46,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:46,258 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13885 transitions. [2022-01-18 11:26:46,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:46,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:46,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:46,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-18 11:26:46,263 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:46,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:46,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1731790859, now seen corresponding path program 188 times [2022-01-18 11:26:46,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:46,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523107869] [2022-01-18 11:26:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:46,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:46,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:46,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523107869] [2022-01-18 11:26:46,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523107869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:46,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:46,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:46,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876765935] [2022-01-18 11:26:46,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:46,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:46,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:46,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:46,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:46,604 INFO L87 Difference]: Start difference. First operand 5303 states and 13885 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:48,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:48,816 INFO L93 Difference]: Finished difference Result 10406 states and 27223 transitions. [2022-01-18 11:26:48,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:26:48,816 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:48,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:48,827 INFO L225 Difference]: With dead ends: 10406 [2022-01-18 11:26:48,827 INFO L226 Difference]: Without dead ends: 10135 [2022-01-18 11:26:48,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=863, Invalid=2797, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:26:48,827 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1123 mSDsluCounter, 6929 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:48,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 7156 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2022-01-18 11:26:48,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 5295. [2022-01-18 11:26:48,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6193804306762374) internal successors, (13867), 5294 states have internal predecessors, (13867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:48,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13867 transitions. [2022-01-18 11:26:48,905 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13867 transitions. Word has length 135 [2022-01-18 11:26:48,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:48,905 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13867 transitions. [2022-01-18 11:26:48,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:48,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13867 transitions. [2022-01-18 11:26:48,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:48,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:48,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:48,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-18 11:26:48,911 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:48,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:48,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1359010693, now seen corresponding path program 189 times [2022-01-18 11:26:48,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:48,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148872531] [2022-01-18 11:26:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:48,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:49,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:49,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148872531] [2022-01-18 11:26:49,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148872531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:49,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:49,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:49,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281713525] [2022-01-18 11:26:49,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:49,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:49,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:49,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:49,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:49,284 INFO L87 Difference]: Start difference. First operand 5295 states and 13867 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:51,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:51,744 INFO L93 Difference]: Finished difference Result 10476 states and 27386 transitions. [2022-01-18 11:26:51,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:26:51,744 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:51,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:51,758 INFO L225 Difference]: With dead ends: 10476 [2022-01-18 11:26:51,758 INFO L226 Difference]: Without dead ends: 10179 [2022-01-18 11:26:51,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=998, Invalid=3034, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:26:51,759 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1207 mSDsluCounter, 6934 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 7153 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:51,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 7153 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:51,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10179 states. [2022-01-18 11:26:51,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10179 to 5299. [2022-01-18 11:26:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.618724046810117) internal successors, (13874), 5298 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13874 transitions. [2022-01-18 11:26:51,844 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13874 transitions. Word has length 135 [2022-01-18 11:26:51,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:51,844 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13874 transitions. [2022-01-18 11:26:51,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:51,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13874 transitions. [2022-01-18 11:26:51,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:51,849 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:51,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:51,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-18 11:26:51,849 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:51,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:51,849 INFO L85 PathProgramCache]: Analyzing trace with hash 519378823, now seen corresponding path program 190 times [2022-01-18 11:26:51,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:51,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286648063] [2022-01-18 11:26:51,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:51,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:52,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:52,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:52,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286648063] [2022-01-18 11:26:52,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286648063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:52,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:52,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:52,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121660106] [2022-01-18 11:26:52,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:52,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:52,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:52,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:52,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:52,210 INFO L87 Difference]: Start difference. First operand 5299 states and 13874 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:54,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:54,477 INFO L93 Difference]: Finished difference Result 10384 states and 27154 transitions. [2022-01-18 11:26:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:26:54,477 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:54,488 INFO L225 Difference]: With dead ends: 10384 [2022-01-18 11:26:54,488 INFO L226 Difference]: Without dead ends: 10118 [2022-01-18 11:26:54,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=883, Invalid=2777, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:26:54,489 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1142 mSDsluCounter, 7318 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 7525 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:54,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 7525 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:54,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2022-01-18 11:26:54,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 5303. [2022-01-18 11:26:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618068653338363) internal successors, (13881), 5302 states have internal predecessors, (13881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:54,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13881 transitions. [2022-01-18 11:26:54,561 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13881 transitions. Word has length 135 [2022-01-18 11:26:54,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:54,561 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13881 transitions. [2022-01-18 11:26:54,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:54,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13881 transitions. [2022-01-18 11:26:54,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:54,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:54,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:54,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-18 11:26:54,567 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:54,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:54,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1649469649, now seen corresponding path program 191 times [2022-01-18 11:26:54,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:54,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213173426] [2022-01-18 11:26:54,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:54,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:54,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:54,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213173426] [2022-01-18 11:26:54,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213173426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:54,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:54,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:54,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070135186] [2022-01-18 11:26:54,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:54,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:54,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:54,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:54,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:54,909 INFO L87 Difference]: Start difference. First operand 5303 states and 13881 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:57,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:26:57,045 INFO L93 Difference]: Finished difference Result 10306 states and 26944 transitions. [2022-01-18 11:26:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:26:57,046 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:26:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:26:57,059 INFO L225 Difference]: With dead ends: 10306 [2022-01-18 11:26:57,059 INFO L226 Difference]: Without dead ends: 10015 [2022-01-18 11:26:57,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=833, Invalid=2707, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:26:57,060 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1098 mSDsluCounter, 7650 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 7853 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:26:57,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1098 Valid, 7853 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:26:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10015 states. [2022-01-18 11:26:57,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10015 to 5275. [2022-01-18 11:26:57,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 2.62191884717482) internal successors, (13828), 5274 states have internal predecessors, (13828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 13828 transitions. [2022-01-18 11:26:57,146 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 13828 transitions. Word has length 135 [2022-01-18 11:26:57,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:26:57,146 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 13828 transitions. [2022-01-18 11:26:57,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:26:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 13828 transitions. [2022-01-18 11:26:57,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:26:57,151 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:26:57,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:26:57,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-18 11:26:57,152 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:26:57,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:26:57,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1340234889, now seen corresponding path program 192 times [2022-01-18 11:26:57,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:26:57,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234660458] [2022-01-18 11:26:57,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:26:57,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:26:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:26:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:26:57,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:26:57,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234660458] [2022-01-18 11:26:57,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234660458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:26:57,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:26:57,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:26:57,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803227314] [2022-01-18 11:26:57,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:26:57,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:26:57,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:26:57,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:26:57,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:26:57,546 INFO L87 Difference]: Start difference. First operand 5275 states and 13828 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:00,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:00,398 INFO L93 Difference]: Finished difference Result 10738 states and 28116 transitions. [2022-01-18 11:27:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:27:00,399 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:00,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:00,410 INFO L225 Difference]: With dead ends: 10738 [2022-01-18 11:27:00,410 INFO L226 Difference]: Without dead ends: 10363 [2022-01-18 11:27:00,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1219, Invalid=3751, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 11:27:00,411 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1267 mSDsluCounter, 6966 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 7211 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:00,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1267 Valid, 7211 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-01-18 11:27:00,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5335. [2022-01-18 11:27:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6211098612673416) internal successors, (13981), 5334 states have internal predecessors, (13981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:00,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13981 transitions. [2022-01-18 11:27:00,489 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13981 transitions. Word has length 135 [2022-01-18 11:27:00,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:00,489 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13981 transitions. [2022-01-18 11:27:00,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:00,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13981 transitions. [2022-01-18 11:27:00,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:00,494 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:00,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:00,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-18 11:27:00,494 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:00,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:00,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1715029357, now seen corresponding path program 193 times [2022-01-18 11:27:00,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:00,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255005837] [2022-01-18 11:27:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:00,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:00,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:00,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:00,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255005837] [2022-01-18 11:27:00,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255005837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:00,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:00,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:00,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638597169] [2022-01-18 11:27:00,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:00,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:00,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:00,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:00,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:00,869 INFO L87 Difference]: Start difference. First operand 5335 states and 13981 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:03,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:03,402 INFO L93 Difference]: Finished difference Result 10714 states and 28058 transitions. [2022-01-18 11:27:03,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:27:03,403 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:03,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:03,417 INFO L225 Difference]: With dead ends: 10714 [2022-01-18 11:27:03,417 INFO L226 Difference]: Without dead ends: 10423 [2022-01-18 11:27:03,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1066, Invalid=3356, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:27:03,418 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1182 mSDsluCounter, 6575 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 6828 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:03,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 6828 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:03,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2022-01-18 11:27:03,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5339. [2022-01-18 11:27:03,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6204571000374672) internal successors, (13988), 5338 states have internal predecessors, (13988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:03,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13988 transitions. [2022-01-18 11:27:03,524 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13988 transitions. Word has length 135 [2022-01-18 11:27:03,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:03,524 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13988 transitions. [2022-01-18 11:27:03,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:03,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13988 transitions. [2022-01-18 11:27:03,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:03,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:03,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:03,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-18 11:27:03,530 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:03,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:03,531 INFO L85 PathProgramCache]: Analyzing trace with hash -2006735385, now seen corresponding path program 194 times [2022-01-18 11:27:03,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:03,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918170746] [2022-01-18 11:27:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:03,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:03,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:03,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918170746] [2022-01-18 11:27:03,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918170746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:03,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:03,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:03,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92868911] [2022-01-18 11:27:03,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:03,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:03,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:03,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:03,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:03,887 INFO L87 Difference]: Start difference. First operand 5339 states and 13988 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:06,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:06,053 INFO L93 Difference]: Finished difference Result 10600 states and 27752 transitions. [2022-01-18 11:27:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:27:06,053 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:06,068 INFO L225 Difference]: With dead ends: 10600 [2022-01-18 11:27:06,068 INFO L226 Difference]: Without dead ends: 10334 [2022-01-18 11:27:06,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=819, Invalid=2603, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:27:06,068 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1150 mSDsluCounter, 6899 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 7129 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:06,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1150 Valid, 7129 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:06,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10334 states. [2022-01-18 11:27:06,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10334 to 5343. [2022-01-18 11:27:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6198053163609134) internal successors, (13995), 5342 states have internal predecessors, (13995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:06,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13995 transitions. [2022-01-18 11:27:06,159 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13995 transitions. Word has length 135 [2022-01-18 11:27:06,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:06,159 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13995 transitions. [2022-01-18 11:27:06,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13995 transitions. [2022-01-18 11:27:06,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:06,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:06,164 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] [2022-01-18 11:27:06,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-18 11:27:06,164 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:06,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:06,165 INFO L85 PathProgramCache]: Analyzing trace with hash 119383439, now seen corresponding path program 195 times [2022-01-18 11:27:06,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:06,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893847551] [2022-01-18 11:27:06,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:06,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:06,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:06,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:06,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893847551] [2022-01-18 11:27:06,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893847551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:06,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:06,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:06,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652562465] [2022-01-18 11:27:06,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:06,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:06,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:06,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:06,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:06,545 INFO L87 Difference]: Start difference. First operand 5343 states and 13995 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:08,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:08,727 INFO L93 Difference]: Finished difference Result 10562 states and 27652 transitions. [2022-01-18 11:27:08,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:27:08,728 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:08,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:08,739 INFO L225 Difference]: With dead ends: 10562 [2022-01-18 11:27:08,739 INFO L226 Difference]: Without dead ends: 10279 [2022-01-18 11:27:08,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=871, Invalid=2789, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:27:08,739 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1115 mSDsluCounter, 6130 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 6394 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:08,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1115 Valid, 6394 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:08,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2022-01-18 11:27:08,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 5323. [2022-01-18 11:27:08,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6208192408868847) internal successors, (13948), 5322 states have internal predecessors, (13948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:08,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13948 transitions. [2022-01-18 11:27:08,816 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13948 transitions. Word has length 135 [2022-01-18 11:27:08,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:08,817 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13948 transitions. [2022-01-18 11:27:08,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:08,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13948 transitions. [2022-01-18 11:27:08,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:08,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:08,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:08,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-18 11:27:08,822 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:08,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:08,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1180739943, now seen corresponding path program 196 times [2022-01-18 11:27:08,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:08,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848585722] [2022-01-18 11:27:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:08,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:09,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:09,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848585722] [2022-01-18 11:27:09,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848585722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:09,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:09,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:09,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205139065] [2022-01-18 11:27:09,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:09,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:09,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:09,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:09,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:09,204 INFO L87 Difference]: Start difference. First operand 5323 states and 13948 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:11,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:11,672 INFO L93 Difference]: Finished difference Result 10722 states and 28080 transitions. [2022-01-18 11:27:11,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:27:11,672 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:11,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:11,687 INFO L225 Difference]: With dead ends: 10722 [2022-01-18 11:27:11,687 INFO L226 Difference]: Without dead ends: 10431 [2022-01-18 11:27:11,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1042, Invalid=3248, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:27:11,687 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1172 mSDsluCounter, 6540 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 6793 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:11,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 6793 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:11,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2022-01-18 11:27:11,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5331. [2022-01-18 11:27:11,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:11,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-01-18 11:27:11,781 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-01-18 11:27:11,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:11,781 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-01-18 11:27:11,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:11,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-01-18 11:27:11,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:11,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:11,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:11,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-18 11:27:11,787 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:11,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1472445971, now seen corresponding path program 197 times [2022-01-18 11:27:11,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:11,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738959275] [2022-01-18 11:27:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:11,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:12,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:12,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:12,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738959275] [2022-01-18 11:27:12,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738959275] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:12,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:12,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:12,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785772995] [2022-01-18 11:27:12,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:12,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:12,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:12,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:12,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:12,145 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:14,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:14,338 INFO L93 Difference]: Finished difference Result 10672 states and 27950 transitions. [2022-01-18 11:27:14,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:27:14,338 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:14,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:14,349 INFO L225 Difference]: With dead ends: 10672 [2022-01-18 11:27:14,349 INFO L226 Difference]: Without dead ends: 10406 [2022-01-18 11:27:14,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=848, Invalid=2692, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:27:14,349 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1158 mSDsluCounter, 6906 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 7138 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:14,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 7138 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:14,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10406 states. [2022-01-18 11:27:14,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10406 to 5335. [2022-01-18 11:27:14,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:14,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-01-18 11:27:14,422 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-01-18 11:27:14,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:14,422 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-01-18 11:27:14,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:14,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-01-18 11:27:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:14,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:14,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:14,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-18 11:27:14,427 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:14,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:14,427 INFO L85 PathProgramCache]: Analyzing trace with hash 653672853, now seen corresponding path program 198 times [2022-01-18 11:27:14,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:14,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941401707] [2022-01-18 11:27:14,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:14,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:14,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:14,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:14,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941401707] [2022-01-18 11:27:14,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941401707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:14,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:14,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:14,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233540581] [2022-01-18 11:27:14,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:14,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:14,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:14,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:14,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:14,775 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:16,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:16,979 INFO L93 Difference]: Finished difference Result 10634 states and 27850 transitions. [2022-01-18 11:27:16,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:27:16,979 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:16,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:16,993 INFO L225 Difference]: With dead ends: 10634 [2022-01-18 11:27:16,994 INFO L226 Difference]: Without dead ends: 10363 [2022-01-18 11:27:16,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=868, Invalid=2792, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:27:16,994 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1124 mSDsluCounter, 6882 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 7125 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:16,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 7125 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-01-18 11:27:17,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5327. [2022-01-18 11:27:17,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-01-18 11:27:17,093 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-01-18 11:27:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:17,094 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-01-18 11:27:17,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:17,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-01-18 11:27:17,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:17,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:17,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:17,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-18 11:27:17,100 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:17,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:17,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1026453019, now seen corresponding path program 199 times [2022-01-18 11:27:17,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:17,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402659653] [2022-01-18 11:27:17,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:17,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:17,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:17,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:17,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402659653] [2022-01-18 11:27:17,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402659653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:17,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:17,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:17,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941639311] [2022-01-18 11:27:17,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:17,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:17,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:17,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:17,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:17,463 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:19,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:19,981 INFO L93 Difference]: Finished difference Result 10724 states and 28068 transitions. [2022-01-18 11:27:19,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:27:19,982 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:19,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:19,993 INFO L225 Difference]: With dead ends: 10724 [2022-01-18 11:27:19,993 INFO L226 Difference]: Without dead ends: 10427 [2022-01-18 11:27:19,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1020, Invalid=3140, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:27:19,994 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1208 mSDsluCounter, 6978 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 7202 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:19,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1208 Valid, 7202 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:20,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10427 states. [2022-01-18 11:27:20,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10427 to 5331. [2022-01-18 11:27:20,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-01-18 11:27:20,071 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-01-18 11:27:20,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:20,071 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-01-18 11:27:20,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:20,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-01-18 11:27:20,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:20,077 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:20,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:20,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-18 11:27:20,077 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:20,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:20,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1390124761, now seen corresponding path program 200 times [2022-01-18 11:27:20,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:20,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573568789] [2022-01-18 11:27:20,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:20,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:20,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:20,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573568789] [2022-01-18 11:27:20,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573568789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:20,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:20,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:20,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332644611] [2022-01-18 11:27:20,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:20,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:20,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:20,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:20,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:20,464 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:22,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:22,779 INFO L93 Difference]: Finished difference Result 10624 states and 27814 transitions. [2022-01-18 11:27:22,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:27:22,779 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:22,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:22,793 INFO L225 Difference]: With dead ends: 10624 [2022-01-18 11:27:22,793 INFO L226 Difference]: Without dead ends: 10358 [2022-01-18 11:27:22,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=877, Invalid=2783, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:27:22,794 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1139 mSDsluCounter, 7299 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 7520 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:22,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 7520 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:22,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10358 states. [2022-01-18 11:27:22,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10358 to 5335. [2022-01-18 11:27:22,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-01-18 11:27:22,877 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-01-18 11:27:22,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:22,877 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-01-18 11:27:22,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:22,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-01-18 11:27:22,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:22,882 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:22,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:22,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-18 11:27:22,883 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:22,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:22,883 INFO L85 PathProgramCache]: Analyzing trace with hash 735994063, now seen corresponding path program 201 times [2022-01-18 11:27:22,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:22,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878908383] [2022-01-18 11:27:22,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:22,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:23,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:23,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:23,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878908383] [2022-01-18 11:27:23,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878908383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:23,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:23,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:23,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051692613] [2022-01-18 11:27:23,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:23,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:23,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:23,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:23,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:23,271 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:25,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:25,394 INFO L93 Difference]: Finished difference Result 10554 states and 27626 transitions. [2022-01-18 11:27:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:27:25,394 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:25,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:25,408 INFO L225 Difference]: With dead ends: 10554 [2022-01-18 11:27:25,408 INFO L226 Difference]: Without dead ends: 10267 [2022-01-18 11:27:25,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=838, Invalid=2702, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:27:25,408 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1122 mSDsluCounter, 6848 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 7087 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:25,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1122 Valid, 7087 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:25,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10267 states. [2022-01-18 11:27:25,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10267 to 5311. [2022-01-18 11:27:25,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.620527306967985) internal successors, (13915), 5310 states have internal predecessors, (13915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:25,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13915 transitions. [2022-01-18 11:27:25,497 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13915 transitions. Word has length 135 [2022-01-18 11:27:25,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:25,497 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13915 transitions. [2022-01-18 11:27:25,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:25,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13915 transitions. [2022-01-18 11:27:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:25,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:25,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:25,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-18 11:27:25,503 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:25,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:25,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1794756299, now seen corresponding path program 202 times [2022-01-18 11:27:25,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:25,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015540826] [2022-01-18 11:27:25,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:25,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:25,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:25,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015540826] [2022-01-18 11:27:25,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015540826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:25,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:25,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:25,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851821762] [2022-01-18 11:27:25,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:25,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:25,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:25,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:25,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:25,835 INFO L87 Difference]: Start difference. First operand 5311 states and 13915 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:28,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:28,205 INFO L93 Difference]: Finished difference Result 10590 states and 27717 transitions. [2022-01-18 11:27:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:27:28,206 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:28,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:28,219 INFO L225 Difference]: With dead ends: 10590 [2022-01-18 11:27:28,220 INFO L226 Difference]: Without dead ends: 10299 [2022-01-18 11:27:28,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1013, Invalid=3147, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:27:28,220 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1157 mSDsluCounter, 6921 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 7160 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:28,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 7160 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2022-01-18 11:27:28,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5331. [2022-01-18 11:27:28,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:28,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-01-18 11:27:28,321 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-01-18 11:27:28,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:28,321 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-01-18 11:27:28,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:28,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-01-18 11:27:28,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:28,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:28,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:28,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-18 11:27:28,326 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:28,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:28,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2086462327, now seen corresponding path program 203 times [2022-01-18 11:27:28,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:28,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494057499] [2022-01-18 11:27:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:28,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:28,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:28,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494057499] [2022-01-18 11:27:28,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494057499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:28,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:28,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:28,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797850182] [2022-01-18 11:27:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:28,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:28,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:28,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:28,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:28,682 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:30,852 INFO L93 Difference]: Finished difference Result 10556 states and 27631 transitions. [2022-01-18 11:27:30,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:27:30,853 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:30,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:30,867 INFO L225 Difference]: With dead ends: 10556 [2022-01-18 11:27:30,867 INFO L226 Difference]: Without dead ends: 10290 [2022-01-18 11:27:30,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:27:30,868 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1158 mSDsluCounter, 6853 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 7079 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:30,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 7079 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:30,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10290 states. [2022-01-18 11:27:30,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10290 to 5335. [2022-01-18 11:27:30,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:30,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-01-18 11:27:30,958 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-01-18 11:27:30,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:30,959 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-01-18 11:27:30,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:30,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-01-18 11:27:30,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:30,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:30,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:30,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-01-18 11:27:30,964 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:30,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash 39656497, now seen corresponding path program 204 times [2022-01-18 11:27:30,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:30,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241514878] [2022-01-18 11:27:30,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:30,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:31,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:31,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:31,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241514878] [2022-01-18 11:27:31,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241514878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:31,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:31,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:31,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584047978] [2022-01-18 11:27:31,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:31,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:31,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:31,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:31,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:31,311 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:33,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:33,562 INFO L93 Difference]: Finished difference Result 10518 states and 27531 transitions. [2022-01-18 11:27:33,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:27:33,563 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:33,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:33,574 INFO L225 Difference]: With dead ends: 10518 [2022-01-18 11:27:33,575 INFO L226 Difference]: Without dead ends: 10247 [2022-01-18 11:27:33,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:27:33,575 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1130 mSDsluCounter, 7200 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 7426 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:33,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 7426 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:33,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10247 states. [2022-01-18 11:27:33,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10247 to 5327. [2022-01-18 11:27:33,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:33,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-01-18 11:27:33,657 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-01-18 11:27:33,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:33,657 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-01-18 11:27:33,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:33,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-01-18 11:27:33,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:33,662 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:33,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:33,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-18 11:27:33,662 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:33,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:33,663 INFO L85 PathProgramCache]: Analyzing trace with hash 412436663, now seen corresponding path program 205 times [2022-01-18 11:27:33,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:33,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32898669] [2022-01-18 11:27:33,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:33,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:33,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:33,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:33,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32898669] [2022-01-18 11:27:33,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32898669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:33,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:33,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:33,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414048105] [2022-01-18 11:27:33,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:33,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:33,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:33,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:33,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:33,997 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:36,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:36,548 INFO L93 Difference]: Finished difference Result 10688 states and 27969 transitions. [2022-01-18 11:27:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:27:36,548 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:36,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:36,561 INFO L225 Difference]: With dead ends: 10688 [2022-01-18 11:27:36,562 INFO L226 Difference]: Without dead ends: 10391 [2022-01-18 11:27:36,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1044, Invalid=3246, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:27:36,562 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1191 mSDsluCounter, 7724 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 7919 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:36,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1191 Valid, 7919 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:36,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10391 states. [2022-01-18 11:27:36,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10391 to 5331. [2022-01-18 11:27:36,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:36,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-01-18 11:27:36,643 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-01-18 11:27:36,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:36,643 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-01-18 11:27:36,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:36,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-01-18 11:27:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:36,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:36,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:36,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-18 11:27:36,648 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:36,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:36,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2004141117, now seen corresponding path program 206 times [2022-01-18 11:27:36,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:36,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449516154] [2022-01-18 11:27:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:36,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:36,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:36,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:36,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449516154] [2022-01-18 11:27:36,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449516154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:36,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:36,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:36,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752630484] [2022-01-18 11:27:36,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:36,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:36,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:36,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:36,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:36,991 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:39,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:39,224 INFO L93 Difference]: Finished difference Result 10572 states and 27671 transitions. [2022-01-18 11:27:39,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:27:39,225 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:39,236 INFO L225 Difference]: With dead ends: 10572 [2022-01-18 11:27:39,236 INFO L226 Difference]: Without dead ends: 10306 [2022-01-18 11:27:39,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:27:39,236 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1160 mSDsluCounter, 6854 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 7080 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:39,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 7080 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:39,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2022-01-18 11:27:39,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5335. [2022-01-18 11:27:39,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:39,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-01-18 11:27:39,312 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-01-18 11:27:39,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:39,312 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-01-18 11:27:39,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:39,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-01-18 11:27:39,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:39,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:39,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:39,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-18 11:27:39,317 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:39,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:39,317 INFO L85 PathProgramCache]: Analyzing trace with hash 121977707, now seen corresponding path program 207 times [2022-01-18 11:27:39,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:39,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856356915] [2022-01-18 11:27:39,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:39,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:39,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:39,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856356915] [2022-01-18 11:27:39,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856356915] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:39,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:39,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:39,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143340942] [2022-01-18 11:27:39,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:39,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:39,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:39,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:39,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:39,659 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:41,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:41,815 INFO L93 Difference]: Finished difference Result 10518 states and 27527 transitions. [2022-01-18 11:27:41,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:27:41,815 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:41,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:41,829 INFO L225 Difference]: With dead ends: 10518 [2022-01-18 11:27:41,829 INFO L226 Difference]: Without dead ends: 10243 [2022-01-18 11:27:41,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:27:41,829 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1118 mSDsluCounter, 7172 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 7394 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:41,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 7394 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:41,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10243 states. [2022-01-18 11:27:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10243 to 5323. [2022-01-18 11:27:41,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6200676437429538) internal successors, (13944), 5322 states have internal predecessors, (13944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:41,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13944 transitions. [2022-01-18 11:27:41,917 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13944 transitions. Word has length 135 [2022-01-18 11:27:41,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:41,917 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13944 transitions. [2022-01-18 11:27:41,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:41,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13944 transitions. [2022-01-18 11:27:41,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:41,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:41,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:41,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-18 11:27:41,923 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:41,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:41,923 INFO L85 PathProgramCache]: Analyzing trace with hash -497328345, now seen corresponding path program 208 times [2022-01-18 11:27:41,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:41,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213364866] [2022-01-18 11:27:41,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:41,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:42,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:42,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:42,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213364866] [2022-01-18 11:27:42,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213364866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:42,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:42,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:42,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641214475] [2022-01-18 11:27:42,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:42,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:42,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:42,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:42,302 INFO L87 Difference]: Start difference. First operand 5323 states and 13944 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:45,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:45,150 INFO L93 Difference]: Finished difference Result 10675 states and 27902 transitions. [2022-01-18 11:27:45,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:27:45,150 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:45,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:45,162 INFO L225 Difference]: With dead ends: 10675 [2022-01-18 11:27:45,163 INFO L226 Difference]: Without dead ends: 10285 [2022-01-18 11:27:45,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1201, Invalid=3629, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 11:27:45,163 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1278 mSDsluCounter, 6954 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 7176 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:45,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1278 Valid, 7176 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10285 states. [2022-01-18 11:27:45,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10285 to 5335. [2022-01-18 11:27:45,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:45,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-01-18 11:27:45,247 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-01-18 11:27:45,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:45,247 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-01-18 11:27:45,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:45,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-01-18 11:27:45,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:45,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:45,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:45,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-01-18 11:27:45,252 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:45,252 INFO L85 PathProgramCache]: Analyzing trace with hash -890793381, now seen corresponding path program 209 times [2022-01-18 11:27:45,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:45,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412376809] [2022-01-18 11:27:45,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:45,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:45,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:45,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412376809] [2022-01-18 11:27:45,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412376809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:45,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:45,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:45,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433046504] [2022-01-18 11:27:45,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:45,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:45,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:45,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:45,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:45,610 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:48,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:48,201 INFO L93 Difference]: Finished difference Result 10536 states and 27539 transitions. [2022-01-18 11:27:48,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:27:48,201 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:48,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:48,214 INFO L225 Difference]: With dead ends: 10536 [2022-01-18 11:27:48,215 INFO L226 Difference]: Without dead ends: 10239 [2022-01-18 11:27:48,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1067, Invalid=3355, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:27:48,215 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1234 mSDsluCounter, 6938 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:48,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 7158 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:48,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2022-01-18 11:27:48,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 5339. [2022-01-18 11:27:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6174597227426) internal successors, (13972), 5338 states have internal predecessors, (13972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:48,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13972 transitions. [2022-01-18 11:27:48,313 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13972 transitions. Word has length 135 [2022-01-18 11:27:48,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:48,313 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13972 transitions. [2022-01-18 11:27:48,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:48,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13972 transitions. [2022-01-18 11:27:48,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:48,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:48,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:48,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-01-18 11:27:48,318 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:48,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:48,319 INFO L85 PathProgramCache]: Analyzing trace with hash 987596135, now seen corresponding path program 210 times [2022-01-18 11:27:48,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:48,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944771369] [2022-01-18 11:27:48,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:48,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:48,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:48,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944771369] [2022-01-18 11:27:48,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944771369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:48,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:48,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:48,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030977636] [2022-01-18 11:27:48,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:48,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:48,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:48,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:48,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:48,658 INFO L87 Difference]: Start difference. First operand 5339 states and 13972 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:50,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:50,857 INFO L93 Difference]: Finished difference Result 10444 states and 27307 transitions. [2022-01-18 11:27:50,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:27:50,857 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:50,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:50,871 INFO L225 Difference]: With dead ends: 10444 [2022-01-18 11:27:50,871 INFO L226 Difference]: Without dead ends: 10178 [2022-01-18 11:27:50,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=868, Invalid=2792, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:27:50,872 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1170 mSDsluCounter, 6826 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 7049 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:50,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1170 Valid, 7049 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:50,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2022-01-18 11:27:50,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 5343. [2022-01-18 11:27:50,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6168101834518906) internal successors, (13979), 5342 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:50,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13979 transitions. [2022-01-18 11:27:50,967 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13979 transitions. Word has length 135 [2022-01-18 11:27:50,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:50,967 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13979 transitions. [2022-01-18 11:27:50,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:50,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13979 transitions. [2022-01-18 11:27:50,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:50,972 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:50,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:50,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-01-18 11:27:50,973 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:50,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:50,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1181252337, now seen corresponding path program 211 times [2022-01-18 11:27:50,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:50,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755913816] [2022-01-18 11:27:50,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:50,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:51,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:51,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755913816] [2022-01-18 11:27:51,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755913816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:51,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:51,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:51,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218240001] [2022-01-18 11:27:51,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:51,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:51,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:51,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:51,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:51,317 INFO L87 Difference]: Start difference. First operand 5343 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:53,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:53,408 INFO L93 Difference]: Finished difference Result 10346 states and 27042 transitions. [2022-01-18 11:27:53,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:27:53,408 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:53,418 INFO L225 Difference]: With dead ends: 10346 [2022-01-18 11:27:53,418 INFO L226 Difference]: Without dead ends: 10003 [2022-01-18 11:27:53,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=815, Invalid=2607, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:27:53,419 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1116 mSDsluCounter, 6761 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 6990 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:53,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1116 Valid, 6990 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:53,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10003 states. [2022-01-18 11:27:53,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10003 to 5263. [2022-01-18 11:27:53,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 2.621626757886735) internal successors, (13795), 5262 states have internal predecessors, (13795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:53,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 13795 transitions. [2022-01-18 11:27:53,488 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 13795 transitions. Word has length 135 [2022-01-18 11:27:53,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:53,488 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 13795 transitions. [2022-01-18 11:27:53,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:53,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 13795 transitions. [2022-01-18 11:27:53,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:53,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:53,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:53,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-01-18 11:27:53,493 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:53,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1540745765, now seen corresponding path program 212 times [2022-01-18 11:27:53,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:53,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231224800] [2022-01-18 11:27:53,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:53,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:53,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:53,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231224800] [2022-01-18 11:27:53,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231224800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:53,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:53,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:53,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986187393] [2022-01-18 11:27:53,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:53,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:53,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:53,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:53,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:53,858 INFO L87 Difference]: Start difference. First operand 5263 states and 13795 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:56,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:56,632 INFO L93 Difference]: Finished difference Result 10762 states and 28182 transitions. [2022-01-18 11:27:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:27:56,632 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:56,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:56,646 INFO L225 Difference]: With dead ends: 10762 [2022-01-18 11:27:56,646 INFO L226 Difference]: Without dead ends: 10387 [2022-01-18 11:27:56,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1202, Invalid=3628, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 11:27:56,647 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1240 mSDsluCounter, 6888 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 7142 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:56,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 7142 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:56,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10387 states. [2022-01-18 11:27:56,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10387 to 5335. [2022-01-18 11:27:56,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6211098612673416) internal successors, (13981), 5334 states have internal predecessors, (13981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13981 transitions. [2022-01-18 11:27:56,743 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13981 transitions. Word has length 135 [2022-01-18 11:27:56,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:56,743 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13981 transitions. [2022-01-18 11:27:56,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:56,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13981 transitions. [2022-01-18 11:27:56,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:56,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:56,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:56,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-01-18 11:27:56,749 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1514518481, now seen corresponding path program 213 times [2022-01-18 11:27:56,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:56,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693041258] [2022-01-18 11:27:56,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:56,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:27:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:27:57,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:27:57,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693041258] [2022-01-18 11:27:57,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693041258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:27:57,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:27:57,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:27:57,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281235474] [2022-01-18 11:27:57,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:27:57,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:27:57,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:27:57,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:27:57,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:27:57,133 INFO L87 Difference]: Start difference. First operand 5335 states and 13981 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:59,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:27:59,694 INFO L93 Difference]: Finished difference Result 10810 states and 28298 transitions. [2022-01-18 11:27:59,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:27:59,694 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:27:59,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:27:59,706 INFO L225 Difference]: With dead ends: 10810 [2022-01-18 11:27:59,706 INFO L226 Difference]: Without dead ends: 10519 [2022-01-18 11:27:59,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1076, Invalid=3346, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:27:59,707 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1180 mSDsluCounter, 6885 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:27:59,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1180 Valid, 7139 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:27:59,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-01-18 11:27:59,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 5339. [2022-01-18 11:27:59,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6204571000374672) internal successors, (13988), 5338 states have internal predecessors, (13988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:59,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13988 transitions. [2022-01-18 11:27:59,780 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13988 transitions. Word has length 135 [2022-01-18 11:27:59,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:27:59,780 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13988 transitions. [2022-01-18 11:27:59,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:27:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13988 transitions. [2022-01-18 11:27:59,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:27:59,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:27:59,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:27:59,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-01-18 11:27:59,786 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:27:59,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:27:59,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1806224509, now seen corresponding path program 214 times [2022-01-18 11:27:59,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:27:59,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309504061] [2022-01-18 11:27:59,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:27:59,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:27:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:00,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:00,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:00,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309504061] [2022-01-18 11:28:00,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309504061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:00,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:00,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:00,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179355532] [2022-01-18 11:28:00,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:00,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:00,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:00,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:00,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:00,124 INFO L87 Difference]: Start difference. First operand 5339 states and 13988 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:02,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:02,256 INFO L93 Difference]: Finished difference Result 10696 states and 27992 transitions. [2022-01-18 11:28:02,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:28:02,256 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:02,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:02,270 INFO L225 Difference]: With dead ends: 10696 [2022-01-18 11:28:02,270 INFO L226 Difference]: Without dead ends: 10430 [2022-01-18 11:28:02,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=815, Invalid=2607, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:28:02,271 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1132 mSDsluCounter, 6877 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 7117 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:02,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 7117 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:02,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2022-01-18 11:28:02,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 5343. [2022-01-18 11:28:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6198053163609134) internal successors, (13995), 5342 states have internal predecessors, (13995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13995 transitions. [2022-01-18 11:28:02,368 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13995 transitions. Word has length 135 [2022-01-18 11:28:02,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:02,368 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13995 transitions. [2022-01-18 11:28:02,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:02,368 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13995 transitions. [2022-01-18 11:28:02,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:02,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:02,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:02,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-01-18 11:28:02,374 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:02,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:02,374 INFO L85 PathProgramCache]: Analyzing trace with hash 319894315, now seen corresponding path program 215 times [2022-01-18 11:28:02,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:02,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186776718] [2022-01-18 11:28:02,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:02,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:02,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:02,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186776718] [2022-01-18 11:28:02,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186776718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:02,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:02,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:02,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650247236] [2022-01-18 11:28:02,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:02,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:02,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:02,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:02,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:02,775 INFO L87 Difference]: Start difference. First operand 5343 states and 13995 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:05,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:05,018 INFO L93 Difference]: Finished difference Result 10658 states and 27892 transitions. [2022-01-18 11:28:05,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:28:05,019 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:05,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:05,031 INFO L225 Difference]: With dead ends: 10658 [2022-01-18 11:28:05,032 INFO L226 Difference]: Without dead ends: 10375 [2022-01-18 11:28:05,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=867, Invalid=2793, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:28:05,032 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1120 mSDsluCounter, 6854 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 7109 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:05,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 7109 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:05,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2022-01-18 11:28:05,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 5323. [2022-01-18 11:28:05,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6208192408868847) internal successors, (13948), 5322 states have internal predecessors, (13948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13948 transitions. [2022-01-18 11:28:05,118 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13948 transitions. Word has length 135 [2022-01-18 11:28:05,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:05,118 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13948 transitions. [2022-01-18 11:28:05,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:05,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13948 transitions. [2022-01-18 11:28:05,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:05,124 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:05,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:05,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-01-18 11:28:05,124 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:05,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:05,124 INFO L85 PathProgramCache]: Analyzing trace with hash -980229067, now seen corresponding path program 216 times [2022-01-18 11:28:05,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:05,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148819002] [2022-01-18 11:28:05,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:05,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:05,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:05,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:05,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148819002] [2022-01-18 11:28:05,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148819002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:05,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:05,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:05,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390798405] [2022-01-18 11:28:05,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:05,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:05,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:05,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:05,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:05,468 INFO L87 Difference]: Start difference. First operand 5323 states and 13948 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:07,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:07,973 INFO L93 Difference]: Finished difference Result 10818 states and 28320 transitions. [2022-01-18 11:28:07,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:28:07,974 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:07,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:07,987 INFO L225 Difference]: With dead ends: 10818 [2022-01-18 11:28:07,987 INFO L226 Difference]: Without dead ends: 10527 [2022-01-18 11:28:07,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1044, Invalid=3246, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:28:07,988 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1208 mSDsluCounter, 6851 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 7103 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:07,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1208 Valid, 7103 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:08,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2022-01-18 11:28:08,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 5331. [2022-01-18 11:28:08,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:08,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-01-18 11:28:08,090 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-01-18 11:28:08,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:08,091 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-01-18 11:28:08,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:08,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-01-18 11:28:08,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:08,096 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:08,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:08,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-01-18 11:28:08,096 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:08,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:08,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1271935095, now seen corresponding path program 217 times [2022-01-18 11:28:08,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:08,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148172326] [2022-01-18 11:28:08,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:08,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:08,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:08,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148172326] [2022-01-18 11:28:08,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148172326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:08,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:08,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:08,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107929001] [2022-01-18 11:28:08,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:08,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:08,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:08,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:08,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:08,450 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:10,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:10,600 INFO L93 Difference]: Finished difference Result 10768 states and 28190 transitions. [2022-01-18 11:28:10,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:28:10,600 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:10,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:10,614 INFO L225 Difference]: With dead ends: 10768 [2022-01-18 11:28:10,614 INFO L226 Difference]: Without dead ends: 10502 [2022-01-18 11:28:10,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:28:10,614 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1142 mSDsluCounter, 6881 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 7123 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:10,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 7123 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:10,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10502 states. [2022-01-18 11:28:10,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10502 to 5335. [2022-01-18 11:28:10,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-01-18 11:28:10,700 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-01-18 11:28:10,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:10,700 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-01-18 11:28:10,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:10,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-01-18 11:28:10,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:10,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:10,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:10,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-01-18 11:28:10,705 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:10,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:10,705 INFO L85 PathProgramCache]: Analyzing trace with hash 854183729, now seen corresponding path program 218 times [2022-01-18 11:28:10,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:10,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927494477] [2022-01-18 11:28:10,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:10,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:11,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:11,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927494477] [2022-01-18 11:28:11,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927494477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:11,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:11,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:11,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980860776] [2022-01-18 11:28:11,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:11,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:11,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:11,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:11,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:11,040 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:13,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:13,264 INFO L93 Difference]: Finished difference Result 10730 states and 28090 transitions. [2022-01-18 11:28:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:28:13,264 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:13,275 INFO L225 Difference]: With dead ends: 10730 [2022-01-18 11:28:13,275 INFO L226 Difference]: Without dead ends: 10459 [2022-01-18 11:28:13,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:28:13,275 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1112 mSDsluCounter, 7227 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 7472 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:13,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 7472 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:13,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10459 states. [2022-01-18 11:28:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10459 to 5327. [2022-01-18 11:28:13,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:13,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-01-18 11:28:13,347 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-01-18 11:28:13,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:13,347 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-01-18 11:28:13,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:13,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-01-18 11:28:13,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:13,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:13,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:13,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-01-18 11:28:13,352 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:13,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1226963895, now seen corresponding path program 219 times [2022-01-18 11:28:13,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:13,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084322420] [2022-01-18 11:28:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:13,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:13,706 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 11:28:13,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:13,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084322420] [2022-01-18 11:28:13,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084322420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:13,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:13,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:13,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568154874] [2022-01-18 11:28:13,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:13,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:13,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:13,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:13,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:13,707 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:16,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:16,197 INFO L93 Difference]: Finished difference Result 10820 states and 28308 transitions. [2022-01-18 11:28:16,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:28:16,198 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:16,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:16,212 INFO L225 Difference]: With dead ends: 10820 [2022-01-18 11:28:16,212 INFO L226 Difference]: Without dead ends: 10523 [2022-01-18 11:28:16,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1010, Invalid=3150, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:28:16,213 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1203 mSDsluCounter, 6959 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 7192 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:16,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1203 Valid, 7192 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:16,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10523 states. [2022-01-18 11:28:16,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10523 to 5331. [2022-01-18 11:28:16,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:16,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-01-18 11:28:16,310 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-01-18 11:28:16,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:16,310 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-01-18 11:28:16,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:16,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-01-18 11:28:16,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:16,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:16,316 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] [2022-01-18 11:28:16,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-01-18 11:28:16,316 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:16,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:16,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1189613885, now seen corresponding path program 220 times [2022-01-18 11:28:16,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:16,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259608056] [2022-01-18 11:28:16,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:16,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:16,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:16,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:16,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259608056] [2022-01-18 11:28:16,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259608056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:16,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:16,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:16,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409486747] [2022-01-18 11:28:16,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:16,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:16,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:16,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:16,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:16,678 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:18,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:18,925 INFO L93 Difference]: Finished difference Result 10720 states and 28054 transitions. [2022-01-18 11:28:18,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:28:18,925 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:18,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:18,937 INFO L225 Difference]: With dead ends: 10720 [2022-01-18 11:28:18,937 INFO L226 Difference]: Without dead ends: 10454 [2022-01-18 11:28:18,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:28:18,938 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1128 mSDsluCounter, 7271 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 7503 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:18,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 7503 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2022-01-18 11:28:19,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 5335. [2022-01-18 11:28:19,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:19,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-01-18 11:28:19,025 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-01-18 11:28:19,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:19,025 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-01-18 11:28:19,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:19,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-01-18 11:28:19,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:19,031 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:19,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:19,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-01-18 11:28:19,031 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:19,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:19,031 INFO L85 PathProgramCache]: Analyzing trace with hash 936504939, now seen corresponding path program 221 times [2022-01-18 11:28:19,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:19,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945194358] [2022-01-18 11:28:19,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:19,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:19,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:19,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:19,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945194358] [2022-01-18 11:28:19,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945194358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:19,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:19,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:19,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672928937] [2022-01-18 11:28:19,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:19,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:19,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:19,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:19,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:19,369 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:21,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:21,496 INFO L93 Difference]: Finished difference Result 10650 states and 27866 transitions. [2022-01-18 11:28:21,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:28:21,496 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:21,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:21,510 INFO L225 Difference]: With dead ends: 10650 [2022-01-18 11:28:21,510 INFO L226 Difference]: Without dead ends: 10363 [2022-01-18 11:28:21,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:28:21,511 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1115 mSDsluCounter, 6825 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 7073 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:21,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1115 Valid, 7073 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:21,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-01-18 11:28:21,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5311. [2022-01-18 11:28:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.620527306967985) internal successors, (13915), 5310 states have internal predecessors, (13915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:21,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13915 transitions. [2022-01-18 11:28:21,602 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13915 transitions. Word has length 135 [2022-01-18 11:28:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:21,602 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13915 transitions. [2022-01-18 11:28:21,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:21,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13915 transitions. [2022-01-18 11:28:21,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:21,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:21,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:21,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-01-18 11:28:21,607 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:21,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:21,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1594245423, now seen corresponding path program 222 times [2022-01-18 11:28:21,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:21,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33625104] [2022-01-18 11:28:21,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:21,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:22,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:22,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33625104] [2022-01-18 11:28:22,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33625104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:22,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:22,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:22,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133031633] [2022-01-18 11:28:22,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:22,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:22,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:22,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:22,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:22,010 INFO L87 Difference]: Start difference. First operand 5311 states and 13915 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:24,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:24,529 INFO L93 Difference]: Finished difference Result 10866 states and 28452 transitions. [2022-01-18 11:28:24,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:28:24,529 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:24,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:24,541 INFO L225 Difference]: With dead ends: 10866 [2022-01-18 11:28:24,541 INFO L226 Difference]: Without dead ends: 10575 [2022-01-18 11:28:24,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1020, Invalid=3140, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:28:24,541 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1188 mSDsluCounter, 6841 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 7092 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:24,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1188 Valid, 7092 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:24,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2022-01-18 11:28:24,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 5331. [2022-01-18 11:28:24,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:24,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-01-18 11:28:24,617 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-01-18 11:28:24,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:24,617 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-01-18 11:28:24,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:24,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-01-18 11:28:24,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:24,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:24,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:24,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-01-18 11:28:24,622 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:24,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:24,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1885951451, now seen corresponding path program 223 times [2022-01-18 11:28:24,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:24,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012501498] [2022-01-18 11:28:24,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:24,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:24,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:24,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012501498] [2022-01-18 11:28:24,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012501498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:24,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:24,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:24,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710648226] [2022-01-18 11:28:24,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:24,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:24,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:24,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:24,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:24,978 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:27,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:27,131 INFO L93 Difference]: Finished difference Result 10832 states and 28366 transitions. [2022-01-18 11:28:27,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:28:27,131 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:27,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:27,145 INFO L225 Difference]: With dead ends: 10832 [2022-01-18 11:28:27,145 INFO L226 Difference]: Without dead ends: 10566 [2022-01-18 11:28:27,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=838, Invalid=2702, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:28:27,146 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1147 mSDsluCounter, 6884 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 7126 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:27,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 7126 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:27,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10566 states. [2022-01-18 11:28:27,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10566 to 5335. [2022-01-18 11:28:27,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-01-18 11:28:27,231 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-01-18 11:28:27,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:27,231 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-01-18 11:28:27,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:27,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-01-18 11:28:27,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:27,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:27,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:27,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-01-18 11:28:27,236 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:27,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:27,237 INFO L85 PathProgramCache]: Analyzing trace with hash 240167373, now seen corresponding path program 224 times [2022-01-18 11:28:27,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:27,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757048807] [2022-01-18 11:28:27,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:27,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:27,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:27,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:27,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757048807] [2022-01-18 11:28:27,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757048807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:27,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:27,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:27,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898911514] [2022-01-18 11:28:27,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:27,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:27,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:27,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:27,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:27,576 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:29,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:29,773 INFO L93 Difference]: Finished difference Result 10794 states and 28266 transitions. [2022-01-18 11:28:29,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:28:29,774 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:29,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:29,787 INFO L225 Difference]: With dead ends: 10794 [2022-01-18 11:28:29,787 INFO L226 Difference]: Without dead ends: 10523 [2022-01-18 11:28:29,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=878, Invalid=2782, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:28:29,788 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1144 mSDsluCounter, 6824 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 7077 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:29,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 7077 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:29,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10523 states. [2022-01-18 11:28:29,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10523 to 5327. [2022-01-18 11:28:29,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:29,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-01-18 11:28:29,877 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-01-18 11:28:29,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:29,877 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-01-18 11:28:29,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:29,878 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-01-18 11:28:29,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:29,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:29,883 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] [2022-01-18 11:28:29,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-01-18 11:28:29,883 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:29,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:29,883 INFO L85 PathProgramCache]: Analyzing trace with hash 612947539, now seen corresponding path program 225 times [2022-01-18 11:28:29,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:29,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597464374] [2022-01-18 11:28:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:29,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:30,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:30,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597464374] [2022-01-18 11:28:30,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597464374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:30,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:30,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:30,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741689416] [2022-01-18 11:28:30,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:30,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:30,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:30,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:30,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:30,238 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:32,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:32,789 INFO L93 Difference]: Finished difference Result 10964 states and 28704 transitions. [2022-01-18 11:28:32,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:28:32,789 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:32,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:32,804 INFO L225 Difference]: With dead ends: 10964 [2022-01-18 11:28:32,804 INFO L226 Difference]: Without dead ends: 10667 [2022-01-18 11:28:32,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1033, Invalid=3257, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:28:32,805 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1210 mSDsluCounter, 6977 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 7212 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:32,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1210 Valid, 7212 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:32,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10667 states. [2022-01-18 11:28:32,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10667 to 5331. [2022-01-18 11:28:32,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:32,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-01-18 11:28:32,911 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-01-18 11:28:32,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:32,911 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-01-18 11:28:32,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:32,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-01-18 11:28:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:32,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:32,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:32,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-01-18 11:28:32,917 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:32,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:32,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1803630241, now seen corresponding path program 226 times [2022-01-18 11:28:32,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:32,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173737102] [2022-01-18 11:28:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:32,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:33,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:33,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173737102] [2022-01-18 11:28:33,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173737102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:33,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:33,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:33,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937533258] [2022-01-18 11:28:33,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:33,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:33,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:33,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:33,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:33,268 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:35,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:35,470 INFO L93 Difference]: Finished difference Result 10848 states and 28406 transitions. [2022-01-18 11:28:35,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:28:35,470 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:35,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:35,484 INFO L225 Difference]: With dead ends: 10848 [2022-01-18 11:28:35,484 INFO L226 Difference]: Without dead ends: 10582 [2022-01-18 11:28:35,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=868, Invalid=2792, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:28:35,484 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1138 mSDsluCounter, 7278 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 7511 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:35,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 7511 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:35,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2022-01-18 11:28:35,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 5335. [2022-01-18 11:28:35,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:35,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-01-18 11:28:35,573 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-01-18 11:28:35,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:35,574 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-01-18 11:28:35,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:35,574 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-01-18 11:28:35,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:35,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:35,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:35,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-01-18 11:28:35,579 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:35,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:35,580 INFO L85 PathProgramCache]: Analyzing trace with hash 322488583, now seen corresponding path program 227 times [2022-01-18 11:28:35,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:35,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081654340] [2022-01-18 11:28:35,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:35,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:35,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:35,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:35,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081654340] [2022-01-18 11:28:35,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081654340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:35,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:35,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:35,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754287326] [2022-01-18 11:28:35,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:35,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:35,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:35,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:35,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:35,950 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:38,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:38,143 INFO L93 Difference]: Finished difference Result 10794 states and 28262 transitions. [2022-01-18 11:28:38,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:28:38,144 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:38,155 INFO L225 Difference]: With dead ends: 10794 [2022-01-18 11:28:38,155 INFO L226 Difference]: Without dead ends: 10519 [2022-01-18 11:28:38,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=848, Invalid=2692, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:28:38,155 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1123 mSDsluCounter, 6805 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 7055 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:38,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 7055 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-01-18 11:28:38,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 5323. [2022-01-18 11:28:38,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6200676437429538) internal successors, (13944), 5322 states have internal predecessors, (13944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:38,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13944 transitions. [2022-01-18 11:28:38,228 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13944 transitions. Word has length 135 [2022-01-18 11:28:38,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:38,229 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13944 transitions. [2022-01-18 11:28:38,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:38,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13944 transitions. [2022-01-18 11:28:38,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:38,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:38,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:38,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-01-18 11:28:38,234 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:38,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:38,234 INFO L85 PathProgramCache]: Analyzing trace with hash -296817469, now seen corresponding path program 228 times [2022-01-18 11:28:38,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:38,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815691568] [2022-01-18 11:28:38,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:38,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:38,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:38,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815691568] [2022-01-18 11:28:38,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815691568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:38,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:38,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:38,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636226568] [2022-01-18 11:28:38,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:38,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:38,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:38,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:38,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:38,592 INFO L87 Difference]: Start difference. First operand 5323 states and 13944 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:41,405 INFO L93 Difference]: Finished difference Result 10987 states and 28736 transitions. [2022-01-18 11:28:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:28:41,405 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:41,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:41,420 INFO L225 Difference]: With dead ends: 10987 [2022-01-18 11:28:41,420 INFO L226 Difference]: Without dead ends: 10597 [2022-01-18 11:28:41,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1219, Invalid=3751, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 11:28:41,421 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1280 mSDsluCounter, 7063 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 7292 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:41,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1280 Valid, 7292 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:41,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10597 states. [2022-01-18 11:28:41,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10597 to 5335. [2022-01-18 11:28:41,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:41,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-01-18 11:28:41,516 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-01-18 11:28:41,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:41,517 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-01-18 11:28:41,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:41,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-01-18 11:28:41,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:41,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:41,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:41,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-01-18 11:28:41,522 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:41,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:41,523 INFO L85 PathProgramCache]: Analyzing trace with hash -690282505, now seen corresponding path program 229 times [2022-01-18 11:28:41,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:41,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313974737] [2022-01-18 11:28:41,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:41,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:41,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:41,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:41,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313974737] [2022-01-18 11:28:41,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313974737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:41,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:41,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:41,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216171613] [2022-01-18 11:28:41,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:41,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:41,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:41,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:41,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:41,882 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:44,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:44,473 INFO L93 Difference]: Finished difference Result 10844 states and 28362 transitions. [2022-01-18 11:28:44,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:28:44,473 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:44,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:44,485 INFO L225 Difference]: With dead ends: 10844 [2022-01-18 11:28:44,485 INFO L226 Difference]: Without dead ends: 10547 [2022-01-18 11:28:44,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1057, Invalid=3365, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:28:44,486 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1196 mSDsluCounter, 7377 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 7602 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:44,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1196 Valid, 7602 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:44,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10547 states. [2022-01-18 11:28:44,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10547 to 5339. [2022-01-18 11:28:44,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6174597227426) internal successors, (13972), 5338 states have internal predecessors, (13972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13972 transitions. [2022-01-18 11:28:44,571 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13972 transitions. Word has length 135 [2022-01-18 11:28:44,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:44,571 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13972 transitions. [2022-01-18 11:28:44,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:44,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13972 transitions. [2022-01-18 11:28:44,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:44,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:44,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:44,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-01-18 11:28:44,577 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:44,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:44,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1188107011, now seen corresponding path program 230 times [2022-01-18 11:28:44,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:44,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386993517] [2022-01-18 11:28:44,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:44,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:44,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:44,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386993517] [2022-01-18 11:28:44,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386993517] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:44,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:44,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:44,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219824797] [2022-01-18 11:28:44,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:44,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:44,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:44,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:44,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:44,941 INFO L87 Difference]: Start difference. First operand 5339 states and 13972 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:47,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:47,146 INFO L93 Difference]: Finished difference Result 10744 states and 28108 transitions. [2022-01-18 11:28:47,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:28:47,146 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:47,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:47,160 INFO L225 Difference]: With dead ends: 10744 [2022-01-18 11:28:47,160 INFO L226 Difference]: Without dead ends: 10478 [2022-01-18 11:28:47,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=863, Invalid=2797, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:28:47,161 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1139 mSDsluCounter, 6859 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 7099 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:47,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 7099 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:47,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2022-01-18 11:28:47,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 5343. [2022-01-18 11:28:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6168101834518906) internal successors, (13979), 5342 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:47,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13979 transitions. [2022-01-18 11:28:47,247 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13979 transitions. Word has length 135 [2022-01-18 11:28:47,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:47,248 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13979 transitions. [2022-01-18 11:28:47,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:47,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13979 transitions. [2022-01-18 11:28:47,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:47,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:47,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:47,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-01-18 11:28:47,253 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:47,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:47,253 INFO L85 PathProgramCache]: Analyzing trace with hash -980741461, now seen corresponding path program 231 times [2022-01-18 11:28:47,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:47,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724847932] [2022-01-18 11:28:47,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:47,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:47,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:47,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:47,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724847932] [2022-01-18 11:28:47,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724847932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:47,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:47,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:47,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22702855] [2022-01-18 11:28:47,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:47,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:47,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:47,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:47,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:47,607 INFO L87 Difference]: Start difference. First operand 5343 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:49,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:49,711 INFO L93 Difference]: Finished difference Result 10658 states and 27876 transitions. [2022-01-18 11:28:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:28:49,711 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:49,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:49,724 INFO L225 Difference]: With dead ends: 10658 [2022-01-18 11:28:49,724 INFO L226 Difference]: Without dead ends: 10327 [2022-01-18 11:28:49,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=820, Invalid=2602, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:28:49,725 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1103 mSDsluCounter, 7157 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 7395 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:49,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 7395 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:49,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10327 states. [2022-01-18 11:28:49,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10327 to 5275. [2022-01-18 11:28:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 2.619643534319302) internal successors, (13816), 5274 states have internal predecessors, (13816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 13816 transitions. [2022-01-18 11:28:49,806 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 13816 transitions. Word has length 135 [2022-01-18 11:28:49,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:49,806 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 13816 transitions. [2022-01-18 11:28:49,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:49,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 13816 transitions. [2022-01-18 11:28:49,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:49,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:49,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:49,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-01-18 11:28:49,811 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:49,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:49,811 INFO L85 PathProgramCache]: Analyzing trace with hash 689155321, now seen corresponding path program 232 times [2022-01-18 11:28:49,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:49,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091708434] [2022-01-18 11:28:49,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:49,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:50,184 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 11:28:50,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:50,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091708434] [2022-01-18 11:28:50,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091708434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:50,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:50,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:50,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427888298] [2022-01-18 11:28:50,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:50,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:50,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:50,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:50,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:50,185 INFO L87 Difference]: Start difference. First operand 5275 states and 13816 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:52,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:52,566 INFO L93 Difference]: Finished difference Result 10590 states and 27713 transitions. [2022-01-18 11:28:52,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:28:52,566 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:52,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:52,580 INFO L225 Difference]: With dead ends: 10590 [2022-01-18 11:28:52,580 INFO L226 Difference]: Without dead ends: 10299 [2022-01-18 11:28:52,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1007, Invalid=3025, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:28:52,581 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1174 mSDsluCounter, 6053 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 6320 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:52,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1174 Valid, 6320 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:28:52,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2022-01-18 11:28:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5299. [2022-01-18 11:28:52,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6194790486976216) internal successors, (13878), 5298 states have internal predecessors, (13878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13878 transitions. [2022-01-18 11:28:52,681 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13878 transitions. Word has length 135 [2022-01-18 11:28:52,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:52,681 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13878 transitions. [2022-01-18 11:28:52,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:52,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13878 transitions. [2022-01-18 11:28:52,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:52,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:52,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:52,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-01-18 11:28:52,687 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:52,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash 397449293, now seen corresponding path program 233 times [2022-01-18 11:28:52,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:52,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910874201] [2022-01-18 11:28:52,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:52,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:53,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:53,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:53,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910874201] [2022-01-18 11:28:53,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910874201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:53,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:53,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:53,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893865701] [2022-01-18 11:28:53,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:53,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:53,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:53,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:53,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:53,029 INFO L87 Difference]: Start difference. First operand 5299 states and 13878 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:55,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:55,157 INFO L93 Difference]: Finished difference Result 10604 states and 27743 transitions. [2022-01-18 11:28:55,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:28:55,158 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:55,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:55,172 INFO L225 Difference]: With dead ends: 10604 [2022-01-18 11:28:55,173 INFO L226 Difference]: Without dead ends: 10338 [2022-01-18 11:28:55,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=833, Invalid=2707, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:28:55,173 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1143 mSDsluCounter, 6824 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 7059 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:55,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 7059 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:55,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10338 states. [2022-01-18 11:28:55,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10338 to 5303. [2022-01-18 11:28:55,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618823085628065) internal successors, (13885), 5302 states have internal predecessors, (13885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:55,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13885 transitions. [2022-01-18 11:28:55,269 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13885 transitions. Word has length 135 [2022-01-18 11:28:55,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:55,269 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13885 transitions. [2022-01-18 11:28:55,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13885 transitions. [2022-01-18 11:28:55,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:55,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:55,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:55,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-01-18 11:28:55,275 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:55,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:55,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1771399179, now seen corresponding path program 234 times [2022-01-18 11:28:55,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:55,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427869255] [2022-01-18 11:28:55,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:55,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:55,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:55,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:55,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427869255] [2022-01-18 11:28:55,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427869255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:55,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:55,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:55,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836506731] [2022-01-18 11:28:55,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:55,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:55,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:55,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:55,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:55,658 INFO L87 Difference]: Start difference. First operand 5303 states and 13885 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:28:57,904 INFO L93 Difference]: Finished difference Result 10566 states and 27643 transitions. [2022-01-18 11:28:57,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:28:57,904 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:28:57,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:28:57,916 INFO L225 Difference]: With dead ends: 10566 [2022-01-18 11:28:57,916 INFO L226 Difference]: Without dead ends: 10295 [2022-01-18 11:28:57,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=891, Invalid=2769, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:28:57,916 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1125 mSDsluCounter, 6366 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 6619 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:28:57,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 6619 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:28:57,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2022-01-18 11:28:57,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5295. [2022-01-18 11:28:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6193804306762374) internal successors, (13867), 5294 states have internal predecessors, (13867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:57,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13867 transitions. [2022-01-18 11:28:57,993 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13867 transitions. Word has length 135 [2022-01-18 11:28:57,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:28:57,993 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13867 transitions. [2022-01-18 11:28:57,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:28:57,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13867 transitions. [2022-01-18 11:28:57,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:28:57,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:28:57,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:28:57,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-01-18 11:28:57,999 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:28:57,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:28:57,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1398619013, now seen corresponding path program 235 times [2022-01-18 11:28:57,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:28:57,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150595694] [2022-01-18 11:28:57,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:28:57,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:28:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:28:58,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:28:58,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:28:58,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150595694] [2022-01-18 11:28:58,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150595694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:28:58,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:28:58,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:28:58,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525886111] [2022-01-18 11:28:58,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:28:58,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:28:58,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:28:58,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:28:58,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:28:58,351 INFO L87 Difference]: Start difference. First operand 5295 states and 13867 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:00,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:00,856 INFO L93 Difference]: Finished difference Result 10736 states and 28081 transitions. [2022-01-18 11:29:00,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:29:00,856 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:00,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:00,870 INFO L225 Difference]: With dead ends: 10736 [2022-01-18 11:29:00,870 INFO L226 Difference]: Without dead ends: 10439 [2022-01-18 11:29:00,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1023, Invalid=3267, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:29:00,871 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1233 mSDsluCounter, 6908 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 7135 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:00,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1233 Valid, 7135 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:00,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10439 states. [2022-01-18 11:29:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10439 to 5299. [2022-01-18 11:29:00,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.618724046810117) internal successors, (13874), 5298 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:00,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13874 transitions. [2022-01-18 11:29:00,959 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13874 transitions. Word has length 135 [2022-01-18 11:29:00,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:00,959 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13874 transitions. [2022-01-18 11:29:00,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:00,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13874 transitions. [2022-01-18 11:29:00,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:00,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:00,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:00,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-01-18 11:29:00,964 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:00,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:00,965 INFO L85 PathProgramCache]: Analyzing trace with hash 479770503, now seen corresponding path program 236 times [2022-01-18 11:29:00,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:00,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675039315] [2022-01-18 11:29:00,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:00,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:01,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:01,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675039315] [2022-01-18 11:29:01,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675039315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:01,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:01,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:01,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382925154] [2022-01-18 11:29:01,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:01,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:01,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:01,326 INFO L87 Difference]: Start difference. First operand 5299 states and 13874 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:03,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:03,548 INFO L93 Difference]: Finished difference Result 10620 states and 27783 transitions. [2022-01-18 11:29:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:29:03,548 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:03,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:03,559 INFO L225 Difference]: With dead ends: 10620 [2022-01-18 11:29:03,559 INFO L226 Difference]: Without dead ends: 10354 [2022-01-18 11:29:03,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=863, Invalid=2797, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:29:03,560 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1157 mSDsluCounter, 6820 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 7055 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:03,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 7055 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:03,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10354 states. [2022-01-18 11:29:03,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10354 to 5303. [2022-01-18 11:29:03,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618068653338363) internal successors, (13881), 5302 states have internal predecessors, (13881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13881 transitions. [2022-01-18 11:29:03,637 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13881 transitions. Word has length 135 [2022-01-18 11:29:03,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:03,637 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13881 transitions. [2022-01-18 11:29:03,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:03,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13881 transitions. [2022-01-18 11:29:03,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:03,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:03,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:03,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-01-18 11:29:03,643 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:03,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:03,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1689077969, now seen corresponding path program 237 times [2022-01-18 11:29:03,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:03,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337120140] [2022-01-18 11:29:03,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:03,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:03,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:03,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337120140] [2022-01-18 11:29:03,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337120140] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:03,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:03,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:03,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946973702] [2022-01-18 11:29:03,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:03,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:03,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:03,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:03,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:03,987 INFO L87 Difference]: Start difference. First operand 5303 states and 13881 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:06,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:06,131 INFO L93 Difference]: Finished difference Result 10566 states and 27639 transitions. [2022-01-18 11:29:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:29:06,131 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:06,144 INFO L225 Difference]: With dead ends: 10566 [2022-01-18 11:29:06,145 INFO L226 Difference]: Without dead ends: 10291 [2022-01-18 11:29:06,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=853, Invalid=2687, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:29:06,145 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1153 mSDsluCounter, 6712 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 6952 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:06,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 6952 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:06,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10291 states. [2022-01-18 11:29:06,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10291 to 5291. [2022-01-18 11:29:06,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 2.619281663516068) internal successors, (13856), 5290 states have internal predecessors, (13856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 13856 transitions. [2022-01-18 11:29:06,230 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 13856 transitions. Word has length 135 [2022-01-18 11:29:06,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:06,230 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 13856 transitions. [2022-01-18 11:29:06,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:06,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 13856 transitions. [2022-01-18 11:29:06,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:06,235 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:06,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:06,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-01-18 11:29:06,235 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:06,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:06,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1986583275, now seen corresponding path program 238 times [2022-01-18 11:29:06,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:06,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520922795] [2022-01-18 11:29:06,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:06,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:06,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:06,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:06,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520922795] [2022-01-18 11:29:06,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520922795] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:06,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:06,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:06,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094209412] [2022-01-18 11:29:06,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:06,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:06,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:06,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:06,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:06,593 INFO L87 Difference]: Start difference. First operand 5291 states and 13856 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:09,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:09,433 INFO L93 Difference]: Finished difference Result 10903 states and 28509 transitions. [2022-01-18 11:29:09,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:29:09,433 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:09,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:09,445 INFO L225 Difference]: With dead ends: 10903 [2022-01-18 11:29:09,445 INFO L226 Difference]: Without dead ends: 10513 [2022-01-18 11:29:09,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1238, Invalid=3874, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:29:09,446 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1283 mSDsluCounter, 7401 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 7611 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:09,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1283 Valid, 7611 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:09,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2022-01-18 11:29:09,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 5303. [2022-01-18 11:29:09,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.617314221048661) internal successors, (13877), 5302 states have internal predecessors, (13877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:09,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13877 transitions. [2022-01-18 11:29:09,526 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13877 transitions. Word has length 135 [2022-01-18 11:29:09,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:09,526 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13877 transitions. [2022-01-18 11:29:09,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13877 transitions. [2022-01-18 11:29:09,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:09,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:09,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:09,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-01-18 11:29:09,531 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:09,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:09,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1593118239, now seen corresponding path program 239 times [2022-01-18 11:29:09,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:09,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268414895] [2022-01-18 11:29:09,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:09,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:09,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:09,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:09,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268414895] [2022-01-18 11:29:09,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268414895] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:09,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:09,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:09,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240387615] [2022-01-18 11:29:09,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:09,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:09,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:09,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:09,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:09,888 INFO L87 Difference]: Start difference. First operand 5303 states and 13877 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:12,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:12,440 INFO L93 Difference]: Finished difference Result 10752 states and 28113 transitions. [2022-01-18 11:29:12,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:29:12,441 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:12,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:12,454 INFO L225 Difference]: With dead ends: 10752 [2022-01-18 11:29:12,455 INFO L226 Difference]: Without dead ends: 10455 [2022-01-18 11:29:12,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1047, Invalid=3375, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:29:12,455 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1233 mSDsluCounter, 6916 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:12,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1233 Valid, 7144 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:12,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10455 states. [2022-01-18 11:29:12,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10455 to 5307. [2022-01-18 11:29:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.616660384470411) internal successors, (13884), 5306 states have internal predecessors, (13884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:12,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13884 transitions. [2022-01-18 11:29:12,554 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13884 transitions. Word has length 135 [2022-01-18 11:29:12,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:12,555 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13884 transitions. [2022-01-18 11:29:12,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:12,555 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13884 transitions. [2022-01-18 11:29:12,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:12,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:12,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:12,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-01-18 11:29:12,560 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:12,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:12,560 INFO L85 PathProgramCache]: Analyzing trace with hash -823459541, now seen corresponding path program 240 times [2022-01-18 11:29:12,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:12,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025013972] [2022-01-18 11:29:12,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:12,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:12,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:12,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:12,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025013972] [2022-01-18 11:29:12,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025013972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:12,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:12,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:12,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40742093] [2022-01-18 11:29:12,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:12,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:12,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:12,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:12,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:12,917 INFO L87 Difference]: Start difference. First operand 5307 states and 13884 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:15,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:15,086 INFO L93 Difference]: Finished difference Result 10636 states and 27815 transitions. [2022-01-18 11:29:15,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:29:15,087 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:15,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:15,101 INFO L225 Difference]: With dead ends: 10636 [2022-01-18 11:29:15,101 INFO L226 Difference]: Without dead ends: 10370 [2022-01-18 11:29:15,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=858, Invalid=2802, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:29:15,102 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1165 mSDsluCounter, 6798 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 7030 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:15,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1165 Valid, 7030 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:15,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10370 states. [2022-01-18 11:29:15,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10370 to 5311. [2022-01-18 11:29:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.6160075329566856) internal successors, (13891), 5310 states have internal predecessors, (13891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:15,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13891 transitions. [2022-01-18 11:29:15,189 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13891 transitions. Word has length 135 [2022-01-18 11:29:15,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:15,189 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13891 transitions. [2022-01-18 11:29:15,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:15,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13891 transitions. [2022-01-18 11:29:15,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:15,195 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:15,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:15,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-01-18 11:29:15,195 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:15,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:15,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1302659283, now seen corresponding path program 241 times [2022-01-18 11:29:15,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:15,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411136879] [2022-01-18 11:29:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:15,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:15,556 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 11:29:15,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:15,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411136879] [2022-01-18 11:29:15,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411136879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:15,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:15,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:15,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669589021] [2022-01-18 11:29:15,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:15,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:15,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:15,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:15,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:15,557 INFO L87 Difference]: Start difference. First operand 5311 states and 13891 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:17,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:17,697 INFO L93 Difference]: Finished difference Result 10574 states and 27649 transitions. [2022-01-18 11:29:17,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:29:17,697 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:17,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:17,708 INFO L225 Difference]: With dead ends: 10574 [2022-01-18 11:29:17,708 INFO L226 Difference]: Without dead ends: 10279 [2022-01-18 11:29:17,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=825, Invalid=2597, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:29:17,709 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1137 mSDsluCounter, 6694 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 6931 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:17,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 6931 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:17,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2022-01-18 11:29:17,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 5279. [2022-01-18 11:29:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 2.61898446381205) internal successors, (13823), 5278 states have internal predecessors, (13823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 13823 transitions. [2022-01-18 11:29:17,775 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 13823 transitions. Word has length 135 [2022-01-18 11:29:17,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:17,775 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 13823 transitions. [2022-01-18 11:29:17,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:17,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 13823 transitions. [2022-01-18 11:29:17,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:17,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:17,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:17,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-01-18 11:29:17,780 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:17,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:17,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1508703591, now seen corresponding path program 242 times [2022-01-18 11:29:17,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:17,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301875369] [2022-01-18 11:29:17,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:17,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:18,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:18,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:18,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301875369] [2022-01-18 11:29:18,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301875369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:18,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:18,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:18,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661200814] [2022-01-18 11:29:18,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:18,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:18,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:18,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:18,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:18,134 INFO L87 Difference]: Start difference. First operand 5279 states and 13823 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:21,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:21,257 INFO L93 Difference]: Finished difference Result 10885 states and 28364 transitions. [2022-01-18 11:29:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:29:21,257 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:21,271 INFO L225 Difference]: With dead ends: 10885 [2022-01-18 11:29:21,271 INFO L226 Difference]: Without dead ends: 10464 [2022-01-18 11:29:21,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1423, Invalid=4277, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:29:21,272 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1606 mSDsluCounter, 7008 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 7233 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:21,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1606 Valid, 7233 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:21,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10464 states. [2022-01-18 11:29:21,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10464 to 5283. [2022-01-18 11:29:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 5282 states have (on average 2.618326391518364) internal successors, (13830), 5282 states have internal predecessors, (13830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 13830 transitions. [2022-01-18 11:29:21,362 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 13830 transitions. Word has length 135 [2022-01-18 11:29:21,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:21,362 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 13830 transitions. [2022-01-18 11:29:21,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:21,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 13830 transitions. [2022-01-18 11:29:21,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:21,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:21,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:21,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-01-18 11:29:21,368 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:21,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:21,368 INFO L85 PathProgramCache]: Analyzing trace with hash -411483453, now seen corresponding path program 243 times [2022-01-18 11:29:21,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:21,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526548187] [2022-01-18 11:29:21,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:21,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:21,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:21,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:21,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526548187] [2022-01-18 11:29:21,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526548187] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:21,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:21,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:21,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415060675] [2022-01-18 11:29:21,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:21,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:21,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:21,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:21,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:21,724 INFO L87 Difference]: Start difference. First operand 5283 states and 13830 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:24,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:24,607 INFO L93 Difference]: Finished difference Result 10695 states and 27933 transitions. [2022-01-18 11:29:24,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:29:24,608 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:24,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:24,619 INFO L225 Difference]: With dead ends: 10695 [2022-01-18 11:29:24,619 INFO L226 Difference]: Without dead ends: 10305 [2022-01-18 11:29:24,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1255, Invalid=4001, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:29:24,620 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1312 mSDsluCounter, 6998 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 7219 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:24,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1312 Valid, 7219 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:24,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10305 states. [2022-01-18 11:29:24,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10305 to 5295. [2022-01-18 11:29:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6163581412920287) internal successors, (13851), 5294 states have internal predecessors, (13851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13851 transitions. [2022-01-18 11:29:24,700 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13851 transitions. Word has length 135 [2022-01-18 11:29:24,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:24,700 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13851 transitions. [2022-01-18 11:29:24,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:24,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13851 transitions. [2022-01-18 11:29:24,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:24,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:24,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:24,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-01-18 11:29:24,705 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:24,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:24,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1556579657, now seen corresponding path program 244 times [2022-01-18 11:29:24,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:24,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124267474] [2022-01-18 11:29:24,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:24,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:25,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:25,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:25,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124267474] [2022-01-18 11:29:25,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124267474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:25,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:25,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:25,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898642191] [2022-01-18 11:29:25,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:25,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:25,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:25,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:25,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:25,088 INFO L87 Difference]: Start difference. First operand 5295 states and 13851 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:27,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:27,635 INFO L93 Difference]: Finished difference Result 10556 states and 27570 transitions. [2022-01-18 11:29:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:29:27,635 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:27,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:27,671 INFO L225 Difference]: With dead ends: 10556 [2022-01-18 11:29:27,671 INFO L226 Difference]: Without dead ends: 10259 [2022-01-18 11:29:27,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1037, Invalid=3385, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:29:27,671 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1227 mSDsluCounter, 7263 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 7475 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:27,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 7475 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:27,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10259 states. [2022-01-18 11:29:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10259 to 5299. [2022-01-18 11:29:27,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6157040392600983) internal successors, (13858), 5298 states have internal predecessors, (13858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:27,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13858 transitions. [2022-01-18 11:29:27,750 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13858 transitions. Word has length 135 [2022-01-18 11:29:27,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:27,750 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13858 transitions. [2022-01-18 11:29:27,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:27,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13858 transitions. [2022-01-18 11:29:27,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:27,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:27,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:27,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-01-18 11:29:27,756 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:27,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:27,756 INFO L85 PathProgramCache]: Analyzing trace with hash 321809859, now seen corresponding path program 245 times [2022-01-18 11:29:27,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:27,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963129097] [2022-01-18 11:29:27,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:27,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:28,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:28,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:28,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963129097] [2022-01-18 11:29:28,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963129097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:28,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:28,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:28,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286319580] [2022-01-18 11:29:28,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:28,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:28,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:28,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:28,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:28,105 INFO L87 Difference]: Start difference. First operand 5299 states and 13858 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:30,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:30,235 INFO L93 Difference]: Finished difference Result 10464 states and 27338 transitions. [2022-01-18 11:29:30,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:29:30,236 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:30,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:30,250 INFO L225 Difference]: With dead ends: 10464 [2022-01-18 11:29:30,250 INFO L226 Difference]: Without dead ends: 10198 [2022-01-18 11:29:30,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=853, Invalid=2807, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:29:30,251 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1191 mSDsluCounter, 6750 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 6977 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:30,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1191 Valid, 6977 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:29:30,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2022-01-18 11:29:30,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 5303. [2022-01-18 11:29:30,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.6150509241795548) internal successors, (13865), 5302 states have internal predecessors, (13865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:30,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13865 transitions. [2022-01-18 11:29:30,339 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13865 transitions. Word has length 135 [2022-01-18 11:29:30,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:30,339 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13865 transitions. [2022-01-18 11:29:30,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:30,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13865 transitions. [2022-01-18 11:29:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:30,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:30,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:30,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-01-18 11:29:30,345 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:30,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:30,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1847038613, now seen corresponding path program 246 times [2022-01-18 11:29:30,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:30,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990213471] [2022-01-18 11:29:30,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:30,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:30,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:30,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:30,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990213471] [2022-01-18 11:29:30,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990213471] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:30,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:30,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:30,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117418357] [2022-01-18 11:29:30,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:30,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:30,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:30,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:30,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:30,724 INFO L87 Difference]: Start difference. First operand 5303 states and 13865 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:32,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:32,766 INFO L93 Difference]: Finished difference Result 10306 states and 26928 transitions. [2022-01-18 11:29:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:29:32,766 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:32,777 INFO L225 Difference]: With dead ends: 10306 [2022-01-18 11:29:32,777 INFO L226 Difference]: Without dead ends: 9947 [2022-01-18 11:29:32,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=807, Invalid=2499, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:29:32,778 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1109 mSDsluCounter, 6276 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 6517 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:32,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 6517 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:29:32,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9947 states. [2022-01-18 11:29:32,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9947 to 5207. [2022-01-18 11:29:32,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 2.630234344986554) internal successors, (13693), 5206 states have internal predecessors, (13693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:32,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 13693 transitions. [2022-01-18 11:29:32,852 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 13693 transitions. Word has length 135 [2022-01-18 11:29:32,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:32,852 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 13693 transitions. [2022-01-18 11:29:32,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:32,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 13693 transitions. [2022-01-18 11:29:32,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:32,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:32,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:32,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-01-18 11:29:32,858 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:32,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:32,858 INFO L85 PathProgramCache]: Analyzing trace with hash -687590931, now seen corresponding path program 247 times [2022-01-18 11:29:32,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:32,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584140200] [2022-01-18 11:29:32,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:32,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:33,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:33,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584140200] [2022-01-18 11:29:33,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584140200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:33,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:33,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:33,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905654871] [2022-01-18 11:29:33,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:33,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:33,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:33,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:33,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:33,228 INFO L87 Difference]: Start difference. First operand 5207 states and 13693 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:35,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:35,937 INFO L93 Difference]: Finished difference Result 10238 states and 26829 transitions. [2022-01-18 11:29:35,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:29:35,937 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:35,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:35,950 INFO L225 Difference]: With dead ends: 10238 [2022-01-18 11:29:35,950 INFO L226 Difference]: Without dead ends: 9863 [2022-01-18 11:29:35,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1166, Invalid=3664, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 11:29:35,951 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1141 mSDsluCounter, 6886 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 7168 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:35,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1141 Valid, 7168 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:35,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9863 states. [2022-01-18 11:29:36,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9863 to 5447. [2022-01-18 11:29:36,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.633308850532501) internal successors, (14341), 5446 states have internal predecessors, (14341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:36,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14341 transitions. [2022-01-18 11:29:36,039 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14341 transitions. Word has length 135 [2022-01-18 11:29:36,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:36,039 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14341 transitions. [2022-01-18 11:29:36,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:36,039 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14341 transitions. [2022-01-18 11:29:36,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:36,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:36,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:36,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-01-18 11:29:36,045 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:36,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:36,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2089263093, now seen corresponding path program 248 times [2022-01-18 11:29:36,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:36,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474156275] [2022-01-18 11:29:36,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:36,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:36,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:36,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:36,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474156275] [2022-01-18 11:29:36,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474156275] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:36,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:36,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:36,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551687532] [2022-01-18 11:29:36,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:36,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:36,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:36,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:36,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:36,406 INFO L87 Difference]: Start difference. First operand 5447 states and 14341 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:38,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:38,879 INFO L93 Difference]: Finished difference Result 10286 states and 26945 transitions. [2022-01-18 11:29:38,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:29:38,879 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:38,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:38,890 INFO L225 Difference]: With dead ends: 10286 [2022-01-18 11:29:38,890 INFO L226 Difference]: Without dead ends: 9995 [2022-01-18 11:29:38,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1032, Invalid=3390, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:29:38,891 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1141 mSDsluCounter, 6803 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 7078 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:38,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1141 Valid, 7078 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:38,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9995 states. [2022-01-18 11:29:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9995 to 5451. [2022-01-18 11:29:38,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6326605504587155) internal successors, (14348), 5450 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14348 transitions. [2022-01-18 11:29:38,971 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14348 transitions. Word has length 135 [2022-01-18 11:29:38,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:38,971 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14348 transitions. [2022-01-18 11:29:38,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:38,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14348 transitions. [2022-01-18 11:29:38,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:38,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:38,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:38,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-01-18 11:29:38,977 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:38,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:38,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1913998175, now seen corresponding path program 249 times [2022-01-18 11:29:38,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:38,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864240891] [2022-01-18 11:29:38,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:38,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:39,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:39,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864240891] [2022-01-18 11:29:39,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864240891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:39,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:39,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:39,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026298915] [2022-01-18 11:29:39,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:39,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:39,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:39,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:39,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:39,356 INFO L87 Difference]: Start difference. First operand 5451 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:41,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:41,291 INFO L93 Difference]: Finished difference Result 10172 states and 26639 transitions. [2022-01-18 11:29:41,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:29:41,292 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:41,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:41,305 INFO L225 Difference]: With dead ends: 10172 [2022-01-18 11:29:41,305 INFO L226 Difference]: Without dead ends: 9906 [2022-01-18 11:29:41,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=773, Invalid=2649, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:29:41,305 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1050 mSDsluCounter, 6455 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 6720 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:41,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1050 Valid, 6720 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:41,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9906 states. [2022-01-18 11:29:41,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9906 to 5455. [2022-01-18 11:29:41,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632013201320132) internal successors, (14355), 5454 states have internal predecessors, (14355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14355 transitions. [2022-01-18 11:29:41,391 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14355 transitions. Word has length 135 [2022-01-18 11:29:41,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:41,391 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14355 transitions. [2022-01-18 11:29:41,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:41,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14355 transitions. [2022-01-18 11:29:41,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:41,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:41,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:41,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-01-18 11:29:41,396 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:41,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:41,396 INFO L85 PathProgramCache]: Analyzing trace with hash -254850297, now seen corresponding path program 250 times [2022-01-18 11:29:41,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:41,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335707481] [2022-01-18 11:29:41,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:41,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:41,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:41,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335707481] [2022-01-18 11:29:41,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335707481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:41,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:41,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:41,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228575512] [2022-01-18 11:29:41,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:41,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:41,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:41,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:41,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:41,758 INFO L87 Difference]: Start difference. First operand 5455 states and 14355 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:43,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:43,891 INFO L93 Difference]: Finished difference Result 10134 states and 26539 transitions. [2022-01-18 11:29:43,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:29:43,891 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:43,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:43,902 INFO L225 Difference]: With dead ends: 10134 [2022-01-18 11:29:43,902 INFO L226 Difference]: Without dead ends: 9851 [2022-01-18 11:29:43,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=832, Invalid=2828, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:29:43,902 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1036 mSDsluCounter, 6808 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 7082 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:43,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1036 Valid, 7082 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:43,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9851 states. [2022-01-18 11:29:43,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9851 to 5435. [2022-01-18 11:29:43,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.633051159366949) internal successors, (14308), 5434 states have internal predecessors, (14308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:43,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14308 transitions. [2022-01-18 11:29:43,978 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14308 transitions. Word has length 135 [2022-01-18 11:29:43,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:43,978 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14308 transitions. [2022-01-18 11:29:43,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:43,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14308 transitions. [2022-01-18 11:29:43,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:43,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:43,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:43,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-01-18 11:29:43,984 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:43,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:43,984 INFO L85 PathProgramCache]: Analyzing trace with hash -983817491, now seen corresponding path program 251 times [2022-01-18 11:29:43,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:43,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830156458] [2022-01-18 11:29:43,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:43,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:44,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:44,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830156458] [2022-01-18 11:29:44,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830156458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:44,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:44,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:44,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81825457] [2022-01-18 11:29:44,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:44,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:44,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:44,334 INFO L87 Difference]: Start difference. First operand 5435 states and 14308 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:46,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:46,634 INFO L93 Difference]: Finished difference Result 10294 states and 26967 transitions. [2022-01-18 11:29:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:29:46,635 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:46,648 INFO L225 Difference]: With dead ends: 10294 [2022-01-18 11:29:46,649 INFO L226 Difference]: Without dead ends: 10003 [2022-01-18 11:29:46,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1010, Invalid=3280, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:29:46,649 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 1130 mSDsluCounter, 6084 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 6364 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:46,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 6364 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:46,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10003 states. [2022-01-18 11:29:46,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10003 to 5443. [2022-01-18 11:29:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.6324880558618156) internal successors, (14326), 5442 states have internal predecessors, (14326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14326 transitions. [2022-01-18 11:29:46,739 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14326 transitions. Word has length 135 [2022-01-18 11:29:46,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:46,739 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14326 transitions. [2022-01-18 11:29:46,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14326 transitions. [2022-01-18 11:29:46,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:46,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:46,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:46,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-01-18 11:29:46,745 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:46,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:46,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1275523519, now seen corresponding path program 252 times [2022-01-18 11:29:46,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:46,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302204372] [2022-01-18 11:29:46,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:46,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:47,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:47,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302204372] [2022-01-18 11:29:47,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302204372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:47,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:47,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:47,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226796155] [2022-01-18 11:29:47,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:47,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:47,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:47,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:47,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:47,105 INFO L87 Difference]: Start difference. First operand 5443 states and 14326 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:49,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:49,167 INFO L93 Difference]: Finished difference Result 10244 states and 26837 transitions. [2022-01-18 11:29:49,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:29:49,167 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:49,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:49,181 INFO L225 Difference]: With dead ends: 10244 [2022-01-18 11:29:49,181 INFO L226 Difference]: Without dead ends: 9978 [2022-01-18 11:29:49,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=799, Invalid=2741, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:29:49,181 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1084 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:49,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1084 Valid, 7072 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:49,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9978 states. [2022-01-18 11:29:49,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9978 to 5447. [2022-01-18 11:29:49,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.631839882482556) internal successors, (14333), 5446 states have internal predecessors, (14333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:49,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14333 transitions. [2022-01-18 11:29:49,270 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14333 transitions. Word has length 135 [2022-01-18 11:29:49,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:49,271 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14333 transitions. [2022-01-18 11:29:49,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:49,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14333 transitions. [2022-01-18 11:29:49,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:49,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:49,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:49,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-01-18 11:29:49,276 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:49,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:49,277 INFO L85 PathProgramCache]: Analyzing trace with hash 850595305, now seen corresponding path program 253 times [2022-01-18 11:29:49,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:49,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898632710] [2022-01-18 11:29:49,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:49,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:49,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:49,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898632710] [2022-01-18 11:29:49,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898632710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:49,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:49,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:49,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446835191] [2022-01-18 11:29:49,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:49,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:49,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:49,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:49,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:49,644 INFO L87 Difference]: Start difference. First operand 5447 states and 14333 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:51,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:51,785 INFO L93 Difference]: Finished difference Result 10206 states and 26737 transitions. [2022-01-18 11:29:51,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:29:51,786 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:51,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:51,799 INFO L225 Difference]: With dead ends: 10206 [2022-01-18 11:29:51,799 INFO L226 Difference]: Without dead ends: 9935 [2022-01-18 11:29:51,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=837, Invalid=2823, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:29:51,799 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1055 mSDsluCounter, 6757 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 7031 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:51,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1055 Valid, 7031 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:51,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9935 states. [2022-01-18 11:29:51,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9935 to 5439. [2022-01-18 11:29:51,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.632401618242001) internal successors, (14315), 5438 states have internal predecessors, (14315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:51,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14315 transitions. [2022-01-18 11:29:51,886 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14315 transitions. Word has length 135 [2022-01-18 11:29:51,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:51,886 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14315 transitions. [2022-01-18 11:29:51,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:51,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14315 transitions. [2022-01-18 11:29:51,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:51,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:51,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:51,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-01-18 11:29:51,891 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:51,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:51,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1223375471, now seen corresponding path program 254 times [2022-01-18 11:29:51,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:51,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623091727] [2022-01-18 11:29:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:51,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:52,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:52,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:52,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623091727] [2022-01-18 11:29:52,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623091727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:52,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:52,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:52,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570250330] [2022-01-18 11:29:52,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:52,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:52,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:52,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:52,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:52,279 INFO L87 Difference]: Start difference. First operand 5439 states and 14315 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:54,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:29:54,610 INFO L93 Difference]: Finished difference Result 10296 states and 26955 transitions. [2022-01-18 11:29:54,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:29:54,610 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-01-18 11:29:54,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:29:54,623 INFO L225 Difference]: With dead ends: 10296 [2022-01-18 11:29:54,623 INFO L226 Difference]: Without dead ends: 9999 [2022-01-18 11:29:54,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=959, Invalid=3201, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:29:54,624 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1116 mSDsluCounter, 6902 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 7151 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:54,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1116 Valid, 7151 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:29:54,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2022-01-18 11:29:54,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 5443. [2022-01-18 11:29:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.631753031973539) internal successors, (14322), 5442 states have internal predecessors, (14322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14322 transitions. [2022-01-18 11:29:54,710 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14322 transitions. Word has length 135 [2022-01-18 11:29:54,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:29:54,710 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14322 transitions. [2022-01-18 11:29:54,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:29:54,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14322 transitions. [2022-01-18 11:29:54,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-18 11:29:54,716 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:29:54,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:29:54,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-01-18 11:29:54,716 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:29:54,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:29:54,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1193202309, now seen corresponding path program 255 times [2022-01-18 11:29:54,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:29:54,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287879801] [2022-01-18 11:29:54,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:29:54,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:29:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:29:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:29:55,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:29:55,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287879801] [2022-01-18 11:29:55,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287879801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:29:55,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:29:55,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 11:29:55,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232835710] [2022-01-18 11:29:55,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:29:55,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 11:29:55,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:29:55,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 11:29:55,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:55,075 INFO L87 Difference]: Start difference. First operand 5443 states and 14322 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 11:29:55,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 11:29:55,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:29:55,083 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:29:55,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 309 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:29:55,084 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 11:29:55,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-01-18 11:29:55,084 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (5443states) and FLOYD_HOARE automaton (currently 2 states, 26 states before enhancement),while ReachableStatesComputation was computing reachable states (14 states constructed, input type IntersectNwa). [2022-01-18 11:29:55,085 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 11:29:55,086 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 11:29:55,087 INFO L732 BasicCegarLoop]: Path program histogram: [255, 20, 20, 7, 1, 1, 1, 1] [2022-01-18 11:29:55,089 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 11:29:55,089 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 11:29:55,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:29:55 BasicIcfg [2022-01-18 11:29:55,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 11:29:55,090 INFO L158 Benchmark]: Toolchain (without parser) took 729709.79ms. Allocated memory was 408.9MB in the beginning and 1.4GB in the end (delta: 1.0GB). Free memory was 350.9MB in the beginning and 875.6MB in the end (delta: -524.8MB). Peak memory consumption was 506.6MB. Max. memory is 16.0GB. [2022-01-18 11:29:55,090 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 408.9MB. Free memory is still 367.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:29:55,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.39ms. Allocated memory was 408.9MB in the beginning and 580.9MB in the end (delta: 172.0MB). Free memory was 350.6MB in the beginning and 549.1MB in the end (delta: -198.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2022-01-18 11:29:55,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.47ms. Allocated memory is still 580.9MB. Free memory was 549.1MB in the beginning and 547.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:29:55,090 INFO L158 Benchmark]: Boogie Preprocessor took 16.68ms. Allocated memory is still 580.9MB. Free memory was 547.0MB in the beginning and 546.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:29:55,090 INFO L158 Benchmark]: RCFGBuilder took 276.63ms. Allocated memory is still 580.9MB. Free memory was 546.0MB in the beginning and 528.2MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-18 11:29:55,090 INFO L158 Benchmark]: TraceAbstraction took 729178.51ms. Allocated memory was 580.9MB in the beginning and 1.4GB in the end (delta: 857.7MB). Free memory was 528.2MB in the beginning and 875.6MB in the end (delta: -347.5MB). Peak memory consumption was 509.2MB. Max. memory is 16.0GB. [2022-01-18 11:29:55,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 408.9MB. Free memory is still 367.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 189.39ms. Allocated memory was 408.9MB in the beginning and 580.9MB in the end (delta: 172.0MB). Free memory was 350.6MB in the beginning and 549.1MB in the end (delta: -198.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.47ms. Allocated memory is still 580.9MB. Free memory was 549.1MB in the beginning and 547.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 16.68ms. Allocated memory is still 580.9MB. Free memory was 547.0MB in the beginning and 546.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 276.63ms. Allocated memory is still 580.9MB. Free memory was 546.0MB in the beginning and 528.2MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 729178.51ms. Allocated memory was 580.9MB in the beginning and 1.4GB in the end (delta: 857.7MB). Free memory was 528.2MB in the beginning and 875.6MB in the end (delta: -347.5MB). Peak memory consumption was 509.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5443states) and FLOYD_HOARE automaton (currently 2 states, 26 states before enhancement),while ReachableStatesComputation was computing reachable states (14 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5443states) and FLOYD_HOARE automaton (currently 2 states, 26 states before enhancement),while ReachableStatesComputation was computing reachable states (14 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5443states) and FLOYD_HOARE automaton (currently 2 states, 26 states before enhancement),while ReachableStatesComputation was computing reachable states (14 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 248 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 729.1s, OverallIterations: 306, TraceHistogramMax: 1, PathProgramHistogramMax: 255, EmptinessCheckTime: 1.7s, AutomataDifference: 603.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 280357 SdHoareTripleChecker+Valid, 130.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 280357 mSDsluCounter, 1935541 SdHoareTripleChecker+Invalid, 109.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1859626 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 359608 IncrementalHoareTripleChecker+Invalid, 359643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 112830 mSDtfsCounter, 359608 mSolverCounterSat, 2.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25793 GetRequests, 8775 SyntacticMatches, 0 SemanticMatches, 17018 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136629 ImplicationChecksByTransitivity, 511.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7153occurred in iteration=0, InterpolantAutomatonStates: 11573, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 25.9s AutomataMinimizationTime, 305 MinimizatonAttempts, 1267420 StatesRemovedByMinimization, 303 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 93.6s InterpolantComputationTime, 39066 NumberOfCodeBlocks, 39066 NumberOfCodeBlocksAsserted, 306 NumberOfCheckSat, 38760 ConstructedInterpolants, 0 QuantifiedInterpolants, 296961 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 306 InterpolantComputations, 306 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2022-01-18 11:29:55,110 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end