/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 14:40:11,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 14:40:11,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 14:40:11,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 14:40:11,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-18 14:40:11,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-18 14:40:11,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-18 14:40:11,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-18 14:40:11,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-18 14:40:11,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-18 14:40:11,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-18 14:40:11,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-18 14:40:11,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-18 14:40:11,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-18 14:40:11,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-18 14:40:11,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-18 14:40:11,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-18 14:40:11,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 14:40:11,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 14:40:11,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 14:40:11,715 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.epf [2022-02-18 14:40:11,741 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 14:40:11,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 14:40:11,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 14:40:11,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 14:40:11,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 14:40:11,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 14:40:11,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 14:40:11,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 14:40:11,743 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 14:40:11,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 14:40:11,744 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 14:40:11,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 14:40:11,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 14:40:11,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 14:40:11,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 14:40:11,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 14:40:11,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 14:40:11,744 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 14:40:11,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 14:40:11,745 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 14:40:11,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 14:40:11,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 14:40:11,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 14:40:11,745 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 14:40:11,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 14:40:11,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:40:11,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 14:40:11,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 14:40:11,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 14:40:11,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 14:40:11,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 14:40:11,746 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 14:40:11,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 14:40:11,746 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 14:40:11,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 14:40:11,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 14:40:11,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 14:40:11,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 14:40:11,968 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 14:40:11,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2022-02-18 14:40:12,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d40ed3ef/068c2d6aadc2433e920e6fb6b9f96de7/FLAG2f752b96e [2022-02-18 14:40:12,406 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 14:40:12,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2022-02-18 14:40:12,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d40ed3ef/068c2d6aadc2433e920e6fb6b9f96de7/FLAG2f752b96e [2022-02-18 14:40:12,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d40ed3ef/068c2d6aadc2433e920e6fb6b9f96de7 [2022-02-18 14:40:12,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 14:40:12,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 14:40:12,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 14:40:12,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 14:40:12,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 14:40:12,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7e2e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12, skipping insertion in model container [2022-02-18 14:40:12,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 14:40:12,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 14:40:12,670 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/popl20-more-buffer-mult.wvr.c[4218,4231] [2022-02-18 14:40:12,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:40:12,686 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 14:40:12,725 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/popl20-more-buffer-mult.wvr.c[4218,4231] [2022-02-18 14:40:12,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:40:12,738 INFO L208 MainTranslator]: Completed translation [2022-02-18 14:40:12,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12 WrapperNode [2022-02-18 14:40:12,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 14:40:12,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 14:40:12,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 14:40:12,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 14:40:12,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,786 INFO L137 Inliner]: procedures = 27, calls = 80, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 307 [2022-02-18 14:40:12,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 14:40:12,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 14:40:12,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 14:40:12,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 14:40:12,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 14:40:12,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 14:40:12,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 14:40:12,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 14:40:12,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (1/1) ... [2022-02-18 14:40:12,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:40:12,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:40:12,863 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) [2022-02-18 14:40:12,879 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 [2022-02-18 14:40:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 14:40:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 14:40:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 14:40:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-18 14:40:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 14:40:12,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 14:40:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 14:40:12,895 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 14:40:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-18 14:40:12,895 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-18 14:40:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-18 14:40:12,895 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-18 14:40:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 14:40:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-18 14:40:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-18 14:40:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-18 14:40:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 14:40:12,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 14:40:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 14:40:12,897 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 14:40:13,007 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 14:40:13,009 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 14:40:13,282 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 14:40:13,367 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 14:40:13,367 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-02-18 14:40:13,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:40:13 BoogieIcfgContainer [2022-02-18 14:40:13,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 14:40:13,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 14:40:13,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 14:40:13,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 14:40:13,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 02:40:12" (1/3) ... [2022-02-18 14:40:13,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27697f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:40:13, skipping insertion in model container [2022-02-18 14:40:13,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:12" (2/3) ... [2022-02-18 14:40:13,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27697f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:40:13, skipping insertion in model container [2022-02-18 14:40:13,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:40:13" (3/3) ... [2022-02-18 14:40:13,374 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult.wvr.c [2022-02-18 14:40:13,378 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 14:40:13,378 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 14:40:13,378 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 14:40:13,378 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 14:40:13,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,419 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,419 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,419 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,419 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,420 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,420 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,420 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,420 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,420 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,421 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,421 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,421 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,421 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,421 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,421 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,421 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,421 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,422 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,422 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,422 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,422 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,422 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,423 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,423 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,423 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,423 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,424 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,424 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,424 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,426 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,426 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,426 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,426 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,426 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,430 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,430 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,430 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,430 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,431 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,432 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,432 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,432 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,432 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,433 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,434 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,434 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,434 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,435 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,437 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,438 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,438 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,438 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,438 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,438 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,438 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,438 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,438 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,439 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,439 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,439 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,439 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,439 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,439 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,440 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,440 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,440 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,440 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,440 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,440 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,440 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,441 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,444 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,445 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,445 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,445 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,445 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,445 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,445 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,446 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,446 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,446 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,446 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,446 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,446 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,448 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,448 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,448 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,448 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,448 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,448 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,448 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,449 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,449 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,449 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,449 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,449 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,449 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:13,453 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-18 14:40:13,494 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 14:40:13,500 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 14:40:13,500 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-18 14:40:13,513 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 226 places, 231 transitions, 494 flow [2022-02-18 14:40:14,233 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17148 states, 17147 states have (on average 4.976205750277017) internal successors, (85327), 17147 states have internal predecessors, (85327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:14,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 17148 states, 17147 states have (on average 4.976205750277017) internal successors, (85327), 17147 states have internal predecessors, (85327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:14,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-18 14:40:14,383 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:14,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:14,384 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:14,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:14,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1660841253, now seen corresponding path program 1 times [2022-02-18 14:40:14,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:14,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928812711] [2022-02-18 14:40:14,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:14,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:40:14,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:14,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928812711] [2022-02-18 14:40:14,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928812711] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:14,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:14,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 14:40:14,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284294965] [2022-02-18 14:40:14,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:14,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 14:40:14,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:14,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 14:40:14,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 14:40:14,775 INFO L87 Difference]: Start difference. First operand has 17148 states, 17147 states have (on average 4.976205750277017) internal successors, (85327), 17147 states have internal predecessors, (85327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:15,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:15,120 INFO L93 Difference]: Finished difference Result 17148 states and 76913 transitions. [2022-02-18 14:40:15,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 14:40:15,122 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2022-02-18 14:40:15,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:15,277 INFO L225 Difference]: With dead ends: 17148 [2022-02-18 14:40:15,278 INFO L226 Difference]: Without dead ends: 17142 [2022-02-18 14:40:15,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 14:40:15,282 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:15,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:40:15,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17142 states. [2022-02-18 14:40:15,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17142 to 17142. [2022-02-18 14:40:16,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17142 states, 17141 states have (on average 4.486727728837291) internal successors, (76907), 17141 states have internal predecessors, (76907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17142 states to 17142 states and 76907 transitions. [2022-02-18 14:40:16,260 INFO L78 Accepts]: Start accepts. Automaton has 17142 states and 76907 transitions. Word has length 168 [2022-02-18 14:40:16,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:16,263 INFO L470 AbstractCegarLoop]: Abstraction has 17142 states and 76907 transitions. [2022-02-18 14:40:16,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:16,263 INFO L276 IsEmpty]: Start isEmpty. Operand 17142 states and 76907 transitions. [2022-02-18 14:40:16,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-18 14:40:16,426 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:16,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:16,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 14:40:16,427 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:16,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash -858370885, now seen corresponding path program 1 times [2022-02-18 14:40:16,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:16,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820821456] [2022-02-18 14:40:16,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:16,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:16,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:40:16,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:16,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820821456] [2022-02-18 14:40:16,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820821456] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:16,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:16,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:40:16,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705285573] [2022-02-18 14:40:16,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:16,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:40:16,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:16,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:40:16,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:40:16,693 INFO L87 Difference]: Start difference. First operand 17142 states and 76907 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:17,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:17,177 INFO L93 Difference]: Finished difference Result 28991 states and 130864 transitions. [2022-02-18 14:40:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:40:17,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2022-02-18 14:40:17,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:17,481 INFO L225 Difference]: With dead ends: 28991 [2022-02-18 14:40:17,482 INFO L226 Difference]: Without dead ends: 26429 [2022-02-18 14:40:17,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:40:17,484 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 28 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:17,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 578 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:40:17,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26429 states. [2022-02-18 14:40:18,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26429 to 22929. [2022-02-18 14:40:18,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22929 states, 22928 states have (on average 4.487002791346825) internal successors, (102878), 22928 states have internal predecessors, (102878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:18,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22929 states to 22929 states and 102878 transitions. [2022-02-18 14:40:18,406 INFO L78 Accepts]: Start accepts. Automaton has 22929 states and 102878 transitions. Word has length 168 [2022-02-18 14:40:18,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:18,408 INFO L470 AbstractCegarLoop]: Abstraction has 22929 states and 102878 transitions. [2022-02-18 14:40:18,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:18,408 INFO L276 IsEmpty]: Start isEmpty. Operand 22929 states and 102878 transitions. [2022-02-18 14:40:18,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-18 14:40:18,499 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:18,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:18,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 14:40:18,500 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:18,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:18,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1749817996, now seen corresponding path program 1 times [2022-02-18 14:40:18,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:18,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397013157] [2022-02-18 14:40:18,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:18,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:18,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:40:18,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:18,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397013157] [2022-02-18 14:40:18,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397013157] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:18,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:18,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:40:18,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137731417] [2022-02-18 14:40:18,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:18,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:40:18,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:18,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:40:18,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:40:18,881 INFO L87 Difference]: Start difference. First operand 22929 states and 102878 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:19,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:19,309 INFO L93 Difference]: Finished difference Result 33991 states and 150867 transitions. [2022-02-18 14:40:19,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:40:19,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2022-02-18 14:40:19,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:19,536 INFO L225 Difference]: With dead ends: 33991 [2022-02-18 14:40:19,536 INFO L226 Difference]: Without dead ends: 32248 [2022-02-18 14:40:19,537 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 [2022-02-18 14:40:19,537 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 37 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:19,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 275 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:40:19,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32248 states. [2022-02-18 14:40:20,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32248 to 27007. [2022-02-18 14:40:20,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27007 states, 27006 states have (on average 4.477301340442865) internal successors, (120914), 27006 states have internal predecessors, (120914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:20,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27007 states to 27007 states and 120914 transitions. [2022-02-18 14:40:20,666 INFO L78 Accepts]: Start accepts. Automaton has 27007 states and 120914 transitions. Word has length 171 [2022-02-18 14:40:20,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:20,667 INFO L470 AbstractCegarLoop]: Abstraction has 27007 states and 120914 transitions. [2022-02-18 14:40:20,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:20,667 INFO L276 IsEmpty]: Start isEmpty. Operand 27007 states and 120914 transitions. [2022-02-18 14:40:20,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-18 14:40:20,771 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:20,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:20,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 14:40:20,772 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:20,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:20,772 INFO L85 PathProgramCache]: Analyzing trace with hash 357358932, now seen corresponding path program 1 times [2022-02-18 14:40:20,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:20,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750303162] [2022-02-18 14:40:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:20,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:20,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:40:20,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:20,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750303162] [2022-02-18 14:40:20,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750303162] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:20,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:20,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:40:20,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021682599] [2022-02-18 14:40:20,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:20,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:40:20,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:20,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:40:20,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:40:20,842 INFO L87 Difference]: Start difference. First operand 27007 states and 120914 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:21,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:21,380 INFO L93 Difference]: Finished difference Result 39699 states and 175257 transitions. [2022-02-18 14:40:21,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:40:21,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2022-02-18 14:40:21,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:21,555 INFO L225 Difference]: With dead ends: 39699 [2022-02-18 14:40:21,555 INFO L226 Difference]: Without dead ends: 37344 [2022-02-18 14:40:21,555 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 [2022-02-18 14:40:21,567 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 49 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:21,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 282 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:40:21,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37344 states. [2022-02-18 14:40:22,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37344 to 32994. [2022-02-18 14:40:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32994 states, 32993 states have (on average 4.431424847694966) internal successors, (146206), 32993 states have internal predecessors, (146206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:22,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32994 states to 32994 states and 146206 transitions. [2022-02-18 14:40:22,716 INFO L78 Accepts]: Start accepts. Automaton has 32994 states and 146206 transitions. Word has length 171 [2022-02-18 14:40:22,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:22,717 INFO L470 AbstractCegarLoop]: Abstraction has 32994 states and 146206 transitions. [2022-02-18 14:40:22,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 32994 states and 146206 transitions. [2022-02-18 14:40:22,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-18 14:40:22,984 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:22,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:22,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 14:40:22,984 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:22,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:22,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2130367443, now seen corresponding path program 1 times [2022-02-18 14:40:22,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:22,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691505260] [2022-02-18 14:40:22,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:22,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:40:23,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:23,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691505260] [2022-02-18 14:40:23,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691505260] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:23,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:23,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:40:23,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902949694] [2022-02-18 14:40:23,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:23,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:40:23,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:23,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:40:23,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:40:23,108 INFO L87 Difference]: Start difference. First operand 32994 states and 146206 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:23,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:23,527 INFO L93 Difference]: Finished difference Result 46746 states and 202605 transitions. [2022-02-18 14:40:23,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:40:23,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2022-02-18 14:40:23,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:23,936 INFO L225 Difference]: With dead ends: 46746 [2022-02-18 14:40:23,936 INFO L226 Difference]: Without dead ends: 42569 [2022-02-18 14:40:23,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:40:23,937 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 446 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:23,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 637 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:40:23,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42569 states. [2022-02-18 14:40:24,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42569 to 36810. [2022-02-18 14:40:24,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36810 states, 36809 states have (on average 4.412208970632182) internal successors, (162409), 36809 states have internal predecessors, (162409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:25,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36810 states to 36810 states and 162409 transitions. [2022-02-18 14:40:25,225 INFO L78 Accepts]: Start accepts. Automaton has 36810 states and 162409 transitions. Word has length 175 [2022-02-18 14:40:25,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:25,225 INFO L470 AbstractCegarLoop]: Abstraction has 36810 states and 162409 transitions. [2022-02-18 14:40:25,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 36810 states and 162409 transitions. [2022-02-18 14:40:25,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-18 14:40:25,325 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:25,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:25,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 14:40:25,326 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:25,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:25,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1436166671, now seen corresponding path program 1 times [2022-02-18 14:40:25,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:25,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415989449] [2022-02-18 14:40:25,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:25,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:25,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:40:25,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:25,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415989449] [2022-02-18 14:40:25,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415989449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:25,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:25,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:40:25,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976500715] [2022-02-18 14:40:25,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:25,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:40:25,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:25,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:40:25,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:40:25,385 INFO L87 Difference]: Start difference. First operand 36810 states and 162409 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:26,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:26,138 INFO L93 Difference]: Finished difference Result 50446 states and 217962 transitions. [2022-02-18 14:40:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 14:40:26,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2022-02-18 14:40:26,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:26,329 INFO L225 Difference]: With dead ends: 50446 [2022-02-18 14:40:26,329 INFO L226 Difference]: Without dead ends: 46323 [2022-02-18 14:40:26,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-18 14:40:26,330 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 173 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:26,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 631 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:40:26,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46323 states. [2022-02-18 14:40:27,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46323 to 40192. [2022-02-18 14:40:27,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40192 states, 40191 states have (on average 4.399865641561544) internal successors, (176835), 40191 states have internal predecessors, (176835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40192 states to 40192 states and 176835 transitions. [2022-02-18 14:40:27,588 INFO L78 Accepts]: Start accepts. Automaton has 40192 states and 176835 transitions. Word has length 175 [2022-02-18 14:40:27,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:27,588 INFO L470 AbstractCegarLoop]: Abstraction has 40192 states and 176835 transitions. [2022-02-18 14:40:27,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:27,589 INFO L276 IsEmpty]: Start isEmpty. Operand 40192 states and 176835 transitions. [2022-02-18 14:40:27,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:40:27,925 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:27,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:27,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-18 14:40:27,926 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:27,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:27,926 INFO L85 PathProgramCache]: Analyzing trace with hash -500393833, now seen corresponding path program 1 times [2022-02-18 14:40:27,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:27,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120029063] [2022-02-18 14:40:27,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:27,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:28,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:28,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:28,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120029063] [2022-02-18 14:40:28,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120029063] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:28,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:28,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 14:40:28,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83943622] [2022-02-18 14:40:28,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:28,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:40:28,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:28,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:40:28,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:40:28,237 INFO L87 Difference]: Start difference. First operand 40192 states and 176835 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:29,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:29,010 INFO L93 Difference]: Finished difference Result 52975 states and 231276 transitions. [2022-02-18 14:40:29,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 14:40:29,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:40:29,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:29,280 INFO L225 Difference]: With dead ends: 52975 [2022-02-18 14:40:29,281 INFO L226 Difference]: Without dead ends: 52291 [2022-02-18 14:40:29,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:40:29,281 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 361 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:29,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 965 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:40:29,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52291 states. [2022-02-18 14:40:30,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52291 to 40084. [2022-02-18 14:40:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40084 states, 40083 states have (on average 4.39907192575406) internal successors, (176328), 40083 states have internal predecessors, (176328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:30,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40084 states to 40084 states and 176328 transitions. [2022-02-18 14:40:30,682 INFO L78 Accepts]: Start accepts. Automaton has 40084 states and 176328 transitions. Word has length 182 [2022-02-18 14:40:30,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:30,682 INFO L470 AbstractCegarLoop]: Abstraction has 40084 states and 176328 transitions. [2022-02-18 14:40:30,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:30,683 INFO L276 IsEmpty]: Start isEmpty. Operand 40084 states and 176328 transitions. [2022-02-18 14:40:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:40:30,777 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:30,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:30,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-18 14:40:30,777 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:30,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:30,778 INFO L85 PathProgramCache]: Analyzing trace with hash 170108027, now seen corresponding path program 2 times [2022-02-18 14:40:30,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:30,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972425484] [2022-02-18 14:40:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:30,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:31,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:31,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972425484] [2022-02-18 14:40:31,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972425484] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:40:31,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009791708] [2022-02-18 14:40:31,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:40:31,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:40:31,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:40:31,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:40:31,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-18 14:40:31,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:40:31,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:40:31,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-18 14:40:31,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:40:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:32,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:40:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:32,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009791708] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-18 14:40:32,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-18 14:40:32,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 7] total 18 [2022-02-18 14:40:32,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874650705] [2022-02-18 14:40:32,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:32,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:40:32,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:32,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:40:32,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:40:32,647 INFO L87 Difference]: Start difference. First operand 40084 states and 176328 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:33,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:33,441 INFO L93 Difference]: Finished difference Result 69793 states and 299194 transitions. [2022-02-18 14:40:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 14:40:33,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:40:33,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:33,735 INFO L225 Difference]: With dead ends: 69793 [2022-02-18 14:40:33,735 INFO L226 Difference]: Without dead ends: 68325 [2022-02-18 14:40:33,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 355 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:40:33,736 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 753 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:33,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [753 Valid, 822 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:40:33,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68325 states. [2022-02-18 14:40:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68325 to 42700. [2022-02-18 14:40:35,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42700 states, 42699 states have (on average 4.429447996440198) internal successors, (189133), 42699 states have internal predecessors, (189133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42700 states to 42700 states and 189133 transitions. [2022-02-18 14:40:35,415 INFO L78 Accepts]: Start accepts. Automaton has 42700 states and 189133 transitions. Word has length 182 [2022-02-18 14:40:35,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:35,415 INFO L470 AbstractCegarLoop]: Abstraction has 42700 states and 189133 transitions. [2022-02-18 14:40:35,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:35,416 INFO L276 IsEmpty]: Start isEmpty. Operand 42700 states and 189133 transitions. [2022-02-18 14:40:35,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:40:35,532 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:35,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:35,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-18 14:40:35,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:40:35,733 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:35,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:35,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1433378109, now seen corresponding path program 3 times [2022-02-18 14:40:35,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:35,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262654547] [2022-02-18 14:40:35,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:35,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:35,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:35,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:35,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262654547] [2022-02-18 14:40:35,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262654547] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:40:35,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908390613] [2022-02-18 14:40:35,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:40:35,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:40:35,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:40:35,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:40:35,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 14:40:36,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-18 14:40:36,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:40:36,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-18 14:40:36,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:40:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:36,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:40:36,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908390613] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:36,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:40:36,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-02-18 14:40:36,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813519420] [2022-02-18 14:40:36,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:36,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:40:36,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:36,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:40:36,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-02-18 14:40:36,728 INFO L87 Difference]: Start difference. First operand 42700 states and 189133 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:37,769 INFO L93 Difference]: Finished difference Result 81961 states and 355301 transitions. [2022-02-18 14:40:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 14:40:37,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:40:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:38,345 INFO L225 Difference]: With dead ends: 81961 [2022-02-18 14:40:38,345 INFO L226 Difference]: Without dead ends: 81430 [2022-02-18 14:40:38,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:40:38,346 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 590 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:38,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 1115 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:40:38,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81430 states. [2022-02-18 14:40:39,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81430 to 43075. [2022-02-18 14:40:39,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43075 states, 43074 states have (on average 4.427171843803687) internal successors, (190696), 43074 states have internal predecessors, (190696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43075 states to 43075 states and 190696 transitions. [2022-02-18 14:40:40,052 INFO L78 Accepts]: Start accepts. Automaton has 43075 states and 190696 transitions. Word has length 182 [2022-02-18 14:40:40,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:40,053 INFO L470 AbstractCegarLoop]: Abstraction has 43075 states and 190696 transitions. [2022-02-18 14:40:40,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:40,053 INFO L276 IsEmpty]: Start isEmpty. Operand 43075 states and 190696 transitions. [2022-02-18 14:40:40,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:40:40,444 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:40,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:40,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-18 14:40:40,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-18 14:40:40,669 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:40,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:40,669 INFO L85 PathProgramCache]: Analyzing trace with hash -560270877, now seen corresponding path program 4 times [2022-02-18 14:40:40,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:40,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744246098] [2022-02-18 14:40:40,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:40,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:40,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:40,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744246098] [2022-02-18 14:40:40,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744246098] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:40:40,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346832511] [2022-02-18 14:40:40,843 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 14:40:40,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:40:40,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:40:40,845 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:40:40,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 14:40:40,973 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 14:40:40,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:40:40,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-18 14:40:40,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:40:41,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:41,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:40:41,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:40:41,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346832511] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:40:41,956 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:40:41,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 19 [2022-02-18 14:40:41,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445601835] [2022-02-18 14:40:41,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:40:41,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:40:41,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:41,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:40:41,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:40:41,958 INFO L87 Difference]: Start difference. First operand 43075 states and 190696 transitions. Second operand has 19 states, 19 states have (on average 23.473684210526315) internal successors, (446), 19 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:44,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:44,069 INFO L93 Difference]: Finished difference Result 102547 states and 440711 transitions. [2022-02-18 14:40:44,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-18 14:40:44,071 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 23.473684210526315) internal successors, (446), 19 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:40:44,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:44,516 INFO L225 Difference]: With dead ends: 102547 [2022-02-18 14:40:44,516 INFO L226 Difference]: Without dead ends: 98123 [2022-02-18 14:40:44,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 353 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=568, Invalid=1882, Unknown=0, NotChecked=0, Total=2450 [2022-02-18 14:40:44,517 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 2113 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2113 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:44,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2113 Valid, 2299 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-18 14:40:44,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98123 states. [2022-02-18 14:40:46,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98123 to 40823. [2022-02-18 14:40:46,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40823 states, 40822 states have (on average 4.406423007201999) internal successors, (179879), 40822 states have internal predecessors, (179879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:46,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40823 states to 40823 states and 179879 transitions. [2022-02-18 14:40:46,656 INFO L78 Accepts]: Start accepts. Automaton has 40823 states and 179879 transitions. Word has length 182 [2022-02-18 14:40:46,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:46,656 INFO L470 AbstractCegarLoop]: Abstraction has 40823 states and 179879 transitions. [2022-02-18 14:40:46,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 23.473684210526315) internal successors, (446), 19 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:46,657 INFO L276 IsEmpty]: Start isEmpty. Operand 40823 states and 179879 transitions. [2022-02-18 14:40:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:40:46,776 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:46,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:46,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-18 14:40:46,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:40:46,979 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:46,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:46,980 INFO L85 PathProgramCache]: Analyzing trace with hash 975414789, now seen corresponding path program 5 times [2022-02-18 14:40:46,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:46,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432808082] [2022-02-18 14:40:46,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:46,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:47,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:47,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432808082] [2022-02-18 14:40:47,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432808082] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:40:47,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956100387] [2022-02-18 14:40:47,189 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 14:40:47,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:40:47,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:40:47,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:40:47,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 14:40:47,301 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:40:47,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:40:47,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-18 14:40:47,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:40:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:47,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:40:48,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:40:48,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956100387] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-18 14:40:48,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-18 14:40:48,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 7] total 19 [2022-02-18 14:40:48,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635228131] [2022-02-18 14:40:48,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:48,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:40:48,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:48,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:40:48,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:40:48,497 INFO L87 Difference]: Start difference. First operand 40823 states and 179879 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:49,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:49,679 INFO L93 Difference]: Finished difference Result 83373 states and 355902 transitions. [2022-02-18 14:40:49,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:40:49,679 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:40:49,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:50,047 INFO L225 Difference]: With dead ends: 83373 [2022-02-18 14:40:50,047 INFO L226 Difference]: Without dead ends: 82101 [2022-02-18 14:40:50,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 353 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=281, Invalid=1279, Unknown=0, NotChecked=0, Total=1560 [2022-02-18 14:40:50,048 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 1720 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:50,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1720 Valid, 1154 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:40:50,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82101 states. [2022-02-18 14:40:51,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82101 to 38048. [2022-02-18 14:40:51,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38048 states, 38047 states have (on average 4.380581911845875) internal successors, (166668), 38047 states have internal predecessors, (166668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38048 states to 38048 states and 166668 transitions. [2022-02-18 14:40:51,964 INFO L78 Accepts]: Start accepts. Automaton has 38048 states and 166668 transitions. Word has length 182 [2022-02-18 14:40:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:51,965 INFO L470 AbstractCegarLoop]: Abstraction has 38048 states and 166668 transitions. [2022-02-18 14:40:51,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:51,965 INFO L276 IsEmpty]: Start isEmpty. Operand 38048 states and 166668 transitions. [2022-02-18 14:40:52,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:40:52,098 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:52,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:52,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-18 14:40:52,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:40:52,299 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:52,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:52,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1759381019, now seen corresponding path program 6 times [2022-02-18 14:40:52,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:52,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33173938] [2022-02-18 14:40:52,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:52,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:52,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:52,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:52,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33173938] [2022-02-18 14:40:52,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33173938] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:52,543 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:52,543 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 14:40:52,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763884895] [2022-02-18 14:40:52,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:52,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:40:52,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:52,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:40:52,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:40:52,544 INFO L87 Difference]: Start difference. First operand 38048 states and 166668 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:53,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:53,539 INFO L93 Difference]: Finished difference Result 53635 states and 232663 transitions. [2022-02-18 14:40:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 14:40:53,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:40:53,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:53,960 INFO L225 Difference]: With dead ends: 53635 [2022-02-18 14:40:53,961 INFO L226 Difference]: Without dead ends: 52455 [2022-02-18 14:40:53,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-02-18 14:40:53,961 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 526 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:53,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 1260 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:40:54,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52455 states. [2022-02-18 14:40:54,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52455 to 35275. [2022-02-18 14:40:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35275 states, 35274 states have (on average 4.409706866247094) internal successors, (155548), 35274 states have internal predecessors, (155548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35275 states to 35275 states and 155548 transitions. [2022-02-18 14:40:55,375 INFO L78 Accepts]: Start accepts. Automaton has 35275 states and 155548 transitions. Word has length 182 [2022-02-18 14:40:55,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:55,376 INFO L470 AbstractCegarLoop]: Abstraction has 35275 states and 155548 transitions. [2022-02-18 14:40:55,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:55,376 INFO L276 IsEmpty]: Start isEmpty. Operand 35275 states and 155548 transitions. [2022-02-18 14:40:55,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:40:55,472 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:55,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:55,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-18 14:40:55,472 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:40:55,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:55,473 INFO L85 PathProgramCache]: Analyzing trace with hash 78103719, now seen corresponding path program 1 times [2022-02-18 14:40:55,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:55,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194257824] [2022-02-18 14:40:55,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:55,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:55,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:55,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:55,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194257824] [2022-02-18 14:40:55,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194257824] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:40:55,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680979820] [2022-02-18 14:40:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:55,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:40:55,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:40:55,616 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:40:55,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-18 14:40:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:55,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-18 14:40:55,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:40:56,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:40:56,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:40:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:40:56,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680979820] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:40:56,803 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:40:56,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 11] total 20 [2022-02-18 14:40:56,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475837859] [2022-02-18 14:40:56,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:40:56,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-18 14:40:56,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:56,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-18 14:40:56,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2022-02-18 14:40:56,805 INFO L87 Difference]: Start difference. First operand 35275 states and 155548 transitions. Second operand has 20 states, 20 states have (on average 21.8) internal successors, (436), 20 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:00,358 INFO L93 Difference]: Finished difference Result 114507 states and 494631 transitions. [2022-02-18 14:41:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 14:41:00,359 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 21.8) internal successors, (436), 20 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:41:00,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:01,138 INFO L225 Difference]: With dead ends: 114507 [2022-02-18 14:41:01,138 INFO L226 Difference]: Without dead ends: 109015 [2022-02-18 14:41:01,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3261 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1705, Invalid=7415, Unknown=0, NotChecked=0, Total=9120 [2022-02-18 14:41:01,140 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 2690 mSDsluCounter, 4262 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 4062 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:01,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2690 Valid, 4062 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-18 14:41:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109015 states. [2022-02-18 14:41:03,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109015 to 43858. [2022-02-18 14:41:03,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43858 states, 43857 states have (on average 4.486763800533552) internal successors, (196776), 43857 states have internal predecessors, (196776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43858 states to 43858 states and 196776 transitions. [2022-02-18 14:41:03,501 INFO L78 Accepts]: Start accepts. Automaton has 43858 states and 196776 transitions. Word has length 182 [2022-02-18 14:41:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:03,502 INFO L470 AbstractCegarLoop]: Abstraction has 43858 states and 196776 transitions. [2022-02-18 14:41:03,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 21.8) internal successors, (436), 20 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 43858 states and 196776 transitions. [2022-02-18 14:41:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:41:03,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:03,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:03,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-18 14:41:03,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-18 14:41:03,812 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:03,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:03,813 INFO L85 PathProgramCache]: Analyzing trace with hash -226515181, now seen corresponding path program 2 times [2022-02-18 14:41:03,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:03,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866309368] [2022-02-18 14:41:03,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:03,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:03,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:03,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:03,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866309368] [2022-02-18 14:41:03,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866309368] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:03,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:03,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 14:41:03,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032134445] [2022-02-18 14:41:03,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:03,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:41:03,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:03,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:41:03,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:41:03,996 INFO L87 Difference]: Start difference. First operand 43858 states and 196776 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:04,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:04,896 INFO L93 Difference]: Finished difference Result 65436 states and 291861 transitions. [2022-02-18 14:41:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 14:41:04,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:41:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:05,174 INFO L225 Difference]: With dead ends: 65436 [2022-02-18 14:41:05,174 INFO L226 Difference]: Without dead ends: 64308 [2022-02-18 14:41:05,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:41:05,175 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 411 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:05,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 780 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:05,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64308 states. [2022-02-18 14:41:06,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64308 to 51412. [2022-02-18 14:41:06,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51412 states, 51411 states have (on average 4.505397677539826) internal successors, (231627), 51411 states have internal predecessors, (231627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51412 states to 51412 states and 231627 transitions. [2022-02-18 14:41:07,246 INFO L78 Accepts]: Start accepts. Automaton has 51412 states and 231627 transitions. Word has length 182 [2022-02-18 14:41:07,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:07,246 INFO L470 AbstractCegarLoop]: Abstraction has 51412 states and 231627 transitions. [2022-02-18 14:41:07,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand 51412 states and 231627 transitions. [2022-02-18 14:41:07,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:41:07,388 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:07,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:07,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-18 14:41:07,389 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:07,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:07,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1032144573, now seen corresponding path program 3 times [2022-02-18 14:41:07,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:07,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831278131] [2022-02-18 14:41:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:07,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:07,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:07,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831278131] [2022-02-18 14:41:07,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831278131] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:07,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:07,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 14:41:07,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711528471] [2022-02-18 14:41:07,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:07,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:41:07,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:07,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:41:07,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:41:07,603 INFO L87 Difference]: Start difference. First operand 51412 states and 231627 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:08,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:08,522 INFO L93 Difference]: Finished difference Result 64792 states and 288357 transitions. [2022-02-18 14:41:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 14:41:08,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:41:08,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:08,800 INFO L225 Difference]: With dead ends: 64792 [2022-02-18 14:41:08,800 INFO L226 Difference]: Without dead ends: 64504 [2022-02-18 14:41:08,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-02-18 14:41:08,801 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 562 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:08,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 1263 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:41:09,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64504 states. [2022-02-18 14:41:10,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64504 to 52642. [2022-02-18 14:41:10,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52642 states, 52641 states have (on average 4.5006553826864995) internal successors, (236919), 52641 states have internal predecessors, (236919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:10,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52642 states to 52642 states and 236919 transitions. [2022-02-18 14:41:10,749 INFO L78 Accepts]: Start accepts. Automaton has 52642 states and 236919 transitions. Word has length 182 [2022-02-18 14:41:10,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:10,749 INFO L470 AbstractCegarLoop]: Abstraction has 52642 states and 236919 transitions. [2022-02-18 14:41:10,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:10,749 INFO L276 IsEmpty]: Start isEmpty. Operand 52642 states and 236919 transitions. [2022-02-18 14:41:10,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:41:10,896 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:10,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:10,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-18 14:41:10,897 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:10,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:10,897 INFO L85 PathProgramCache]: Analyzing trace with hash -970708935, now seen corresponding path program 4 times [2022-02-18 14:41:10,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:10,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835737346] [2022-02-18 14:41:10,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:10,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:41:11,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:11,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835737346] [2022-02-18 14:41:11,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835737346] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:11,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147430709] [2022-02-18 14:41:11,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 14:41:11,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:11,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:11,187 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:41:11,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-18 14:41:11,305 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 14:41:11,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:41:11,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-18 14:41:11,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:12,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:41:12,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147430709] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:12,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:41:12,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 17 [2022-02-18 14:41:12,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269327552] [2022-02-18 14:41:12,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:12,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-18 14:41:12,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:12,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-18 14:41:12,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-02-18 14:41:12,670 INFO L87 Difference]: Start difference. First operand 52642 states and 236919 transitions. Second operand has 10 states, 10 states have (on average 18.2) internal successors, (182), 10 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:13,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:13,995 INFO L93 Difference]: Finished difference Result 82619 states and 369646 transitions. [2022-02-18 14:41:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-18 14:41:13,995 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.2) internal successors, (182), 10 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:41:13,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:14,580 INFO L225 Difference]: With dead ends: 82619 [2022-02-18 14:41:14,581 INFO L226 Difference]: Without dead ends: 82619 [2022-02-18 14:41:14,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=214, Invalid=778, Unknown=0, NotChecked=0, Total=992 [2022-02-18 14:41:14,582 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 740 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:14,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 1393 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:41:14,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82619 states. [2022-02-18 14:41:16,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82619 to 57392. [2022-02-18 14:41:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57392 states, 57391 states have (on average 4.507100416441602) internal successors, (258667), 57391 states have internal predecessors, (258667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57392 states to 57392 states and 258667 transitions. [2022-02-18 14:41:16,923 INFO L78 Accepts]: Start accepts. Automaton has 57392 states and 258667 transitions. Word has length 182 [2022-02-18 14:41:16,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:16,924 INFO L470 AbstractCegarLoop]: Abstraction has 57392 states and 258667 transitions. [2022-02-18 14:41:16,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.2) internal successors, (182), 10 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 57392 states and 258667 transitions. [2022-02-18 14:41:17,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:41:17,111 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:17,111 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:17,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-18 14:41:17,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-18 14:41:17,312 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:17,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:17,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1777401051, now seen corresponding path program 5 times [2022-02-18 14:41:17,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:17,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366073887] [2022-02-18 14:41:17,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:17,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:17,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:41:17,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:17,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366073887] [2022-02-18 14:41:17,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366073887] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:17,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486844717] [2022-02-18 14:41:17,622 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 14:41:17,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:17,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:17,623 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:41:17,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-18 14:41:17,741 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:41:17,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:41:17,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-18 14:41:17,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:41:18,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:41:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:41:19,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486844717] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:19,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-18 14:41:19,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 8] total 21 [2022-02-18 14:41:19,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869457885] [2022-02-18 14:41:19,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:19,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:41:19,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:19,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:41:19,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:41:19,326 INFO L87 Difference]: Start difference. First operand 57392 states and 258667 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:20,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:20,698 INFO L93 Difference]: Finished difference Result 132591 states and 590492 transitions. [2022-02-18 14:41:20,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 14:41:20,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:41:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:21,600 INFO L225 Difference]: With dead ends: 132591 [2022-02-18 14:41:21,600 INFO L226 Difference]: Without dead ends: 130483 [2022-02-18 14:41:21,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=783, Unknown=0, NotChecked=0, Total=930 [2022-02-18 14:41:21,601 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 868 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:21,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 916 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:41:21,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130483 states. [2022-02-18 14:41:24,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130483 to 59912. [2022-02-18 14:41:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59912 states, 59911 states have (on average 4.540768807063811) internal successors, (272042), 59911 states have internal predecessors, (272042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59912 states to 59912 states and 272042 transitions. [2022-02-18 14:41:25,022 INFO L78 Accepts]: Start accepts. Automaton has 59912 states and 272042 transitions. Word has length 182 [2022-02-18 14:41:25,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:25,022 INFO L470 AbstractCegarLoop]: Abstraction has 59912 states and 272042 transitions. [2022-02-18 14:41:25,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:25,022 INFO L276 IsEmpty]: Start isEmpty. Operand 59912 states and 272042 transitions. [2022-02-18 14:41:25,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:41:25,205 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:25,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:25,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-18 14:41:25,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:25,412 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:25,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:25,412 INFO L85 PathProgramCache]: Analyzing trace with hash -143593685, now seen corresponding path program 6 times [2022-02-18 14:41:25,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:25,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790674875] [2022-02-18 14:41:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:25,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:25,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:25,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790674875] [2022-02-18 14:41:25,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790674875] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:25,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:25,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 14:41:25,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156500877] [2022-02-18 14:41:25,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:25,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:41:25,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:25,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:41:25,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:41:25,627 INFO L87 Difference]: Start difference. First operand 59912 states and 272042 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:26,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:26,909 INFO L93 Difference]: Finished difference Result 83725 states and 378043 transitions. [2022-02-18 14:41:26,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 14:41:26,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:41:26,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:27,534 INFO L225 Difference]: With dead ends: 83725 [2022-02-18 14:41:27,534 INFO L226 Difference]: Without dead ends: 81232 [2022-02-18 14:41:27,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-02-18 14:41:27,535 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 706 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:27,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [706 Valid, 1167 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:41:27,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81232 states. [2022-02-18 14:41:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81232 to 57848. [2022-02-18 14:41:29,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57848 states, 57847 states have (on average 4.553511850225595) internal successors, (263407), 57847 states have internal predecessors, (263407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:29,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57848 states to 57848 states and 263407 transitions. [2022-02-18 14:41:29,974 INFO L78 Accepts]: Start accepts. Automaton has 57848 states and 263407 transitions. Word has length 182 [2022-02-18 14:41:29,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:29,974 INFO L470 AbstractCegarLoop]: Abstraction has 57848 states and 263407 transitions. [2022-02-18 14:41:29,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:29,975 INFO L276 IsEmpty]: Start isEmpty. Operand 57848 states and 263407 transitions. [2022-02-18 14:41:30,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:41:30,251 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:30,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:30,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-18 14:41:30,252 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:30,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:30,263 INFO L85 PathProgramCache]: Analyzing trace with hash 958614483, now seen corresponding path program 7 times [2022-02-18 14:41:30,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:30,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117235434] [2022-02-18 14:41:30,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:30,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:30,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:30,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117235434] [2022-02-18 14:41:30,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117235434] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:30,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:30,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 14:41:30,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275722393] [2022-02-18 14:41:30,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:30,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:41:30,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:30,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:41:30,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:41:30,556 INFO L87 Difference]: Start difference. First operand 57848 states and 263407 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:31,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:31,881 INFO L93 Difference]: Finished difference Result 74639 states and 337963 transitions. [2022-02-18 14:41:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 14:41:31,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-02-18 14:41:31,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:32,439 INFO L225 Difference]: With dead ends: 74639 [2022-02-18 14:41:32,439 INFO L226 Difference]: Without dead ends: 72057 [2022-02-18 14:41:32,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-02-18 14:41:32,441 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 527 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:32,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 1106 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:41:32,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72057 states. [2022-02-18 14:41:33,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72057 to 49161. [2022-02-18 14:41:34,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49161 states, 49160 states have (on average 4.581082180634662) internal successors, (225206), 49160 states have internal predecessors, (225206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:34,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49161 states to 49161 states and 225206 transitions. [2022-02-18 14:41:34,497 INFO L78 Accepts]: Start accepts. Automaton has 49161 states and 225206 transitions. Word has length 182 [2022-02-18 14:41:34,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:34,498 INFO L470 AbstractCegarLoop]: Abstraction has 49161 states and 225206 transitions. [2022-02-18 14:41:34,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:34,498 INFO L276 IsEmpty]: Start isEmpty. Operand 49161 states and 225206 transitions. [2022-02-18 14:41:34,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:41:34,628 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:34,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:34,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-18 14:41:34,629 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:34,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:34,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1075888186, now seen corresponding path program 1 times [2022-02-18 14:41:34,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:34,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998967472] [2022-02-18 14:41:34,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:34,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:34,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:34,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998967472] [2022-02-18 14:41:34,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998967472] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:34,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348704054] [2022-02-18 14:41:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:34,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:34,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:34,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:41:34,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-18 14:41:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:34,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-18 14:41:34,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:35,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:41:35,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348704054] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:35,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:41:35,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-02-18 14:41:35,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164314651] [2022-02-18 14:41:35,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:35,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:41:35,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:35,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:41:35,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:41:35,125 INFO L87 Difference]: Start difference. First operand 49161 states and 225206 transitions. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:36,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:36,399 INFO L93 Difference]: Finished difference Result 110527 states and 510744 transitions. [2022-02-18 14:41:36,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:41:36,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:41:36,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:37,020 INFO L225 Difference]: With dead ends: 110527 [2022-02-18 14:41:37,020 INFO L226 Difference]: Without dead ends: 110527 [2022-02-18 14:41:37,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-02-18 14:41:37,021 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 228 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:37,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 779 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:37,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110527 states. [2022-02-18 14:41:39,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110527 to 65138. [2022-02-18 14:41:39,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65138 states, 65137 states have (on average 4.611695349801188) internal successors, (300392), 65137 states have internal predecessors, (300392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65138 states to 65138 states and 300392 transitions. [2022-02-18 14:41:40,149 INFO L78 Accepts]: Start accepts. Automaton has 65138 states and 300392 transitions. Word has length 193 [2022-02-18 14:41:40,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:40,150 INFO L470 AbstractCegarLoop]: Abstraction has 65138 states and 300392 transitions. [2022-02-18 14:41:40,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:40,150 INFO L276 IsEmpty]: Start isEmpty. Operand 65138 states and 300392 transitions. [2022-02-18 14:41:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:41:40,345 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:40,345 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:40,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-18 14:41:40,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:40,546 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:40,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:40,546 INFO L85 PathProgramCache]: Analyzing trace with hash -316570878, now seen corresponding path program 1 times [2022-02-18 14:41:40,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:40,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666083757] [2022-02-18 14:41:40,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:40,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:40,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:40,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:40,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666083757] [2022-02-18 14:41:40,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666083757] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:40,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:40,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:41:40,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910278812] [2022-02-18 14:41:40,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:40,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:41:40,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:40,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:41:40,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:41:40,604 INFO L87 Difference]: Start difference. First operand 65138 states and 300392 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:42,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:42,077 INFO L93 Difference]: Finished difference Result 119125 states and 548658 transitions. [2022-02-18 14:41:42,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:41:42,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:41:42,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:42,749 INFO L225 Difference]: With dead ends: 119125 [2022-02-18 14:41:42,749 INFO L226 Difference]: Without dead ends: 119125 [2022-02-18 14:41:42,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:41:42,749 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 181 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:42,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 667 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:43,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119125 states. [2022-02-18 14:41:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119125 to 66287. [2022-02-18 14:41:45,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66287 states, 66286 states have (on average 4.601303442657575) internal successors, (305002), 66286 states have internal predecessors, (305002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:45,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66287 states to 66287 states and 305002 transitions. [2022-02-18 14:41:45,901 INFO L78 Accepts]: Start accepts. Automaton has 66287 states and 305002 transitions. Word has length 193 [2022-02-18 14:41:45,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:45,902 INFO L470 AbstractCegarLoop]: Abstraction has 66287 states and 305002 transitions. [2022-02-18 14:41:45,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:45,902 INFO L276 IsEmpty]: Start isEmpty. Operand 66287 states and 305002 transitions. [2022-02-18 14:41:46,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:41:46,119 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:46,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:46,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-18 14:41:46,120 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:46,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:46,120 INFO L85 PathProgramCache]: Analyzing trace with hash -42298392, now seen corresponding path program 2 times [2022-02-18 14:41:46,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:46,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051589664] [2022-02-18 14:41:46,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:46,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:46,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:46,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051589664] [2022-02-18 14:41:46,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051589664] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:46,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:46,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:41:46,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174710179] [2022-02-18 14:41:46,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:46,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:41:46,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:46,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:41:46,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:41:46,181 INFO L87 Difference]: Start difference. First operand 66287 states and 305002 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:47,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:47,650 INFO L93 Difference]: Finished difference Result 107019 states and 496800 transitions. [2022-02-18 14:41:47,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:41:47,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:41:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:48,261 INFO L225 Difference]: With dead ends: 107019 [2022-02-18 14:41:48,261 INFO L226 Difference]: Without dead ends: 107019 [2022-02-18 14:41:48,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:41:48,262 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 193 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:48,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 639 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:48,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107019 states. [2022-02-18 14:41:50,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107019 to 51914. [2022-02-18 14:41:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51914 states, 51913 states have (on average 4.594976210197831) internal successors, (238539), 51913 states have internal predecessors, (238539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:50,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51914 states to 51914 states and 238539 transitions. [2022-02-18 14:41:50,814 INFO L78 Accepts]: Start accepts. Automaton has 51914 states and 238539 transitions. Word has length 193 [2022-02-18 14:41:50,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:50,814 INFO L470 AbstractCegarLoop]: Abstraction has 51914 states and 238539 transitions. [2022-02-18 14:41:50,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:50,814 INFO L276 IsEmpty]: Start isEmpty. Operand 51914 states and 238539 transitions. [2022-02-18 14:41:50,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:41:50,969 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:50,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:50,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-18 14:41:50,970 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:50,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:50,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1900493798, now seen corresponding path program 3 times [2022-02-18 14:41:50,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:50,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934836472] [2022-02-18 14:41:50,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:50,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:51,356 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:51,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:51,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934836472] [2022-02-18 14:41:51,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934836472] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:51,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:51,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:41:51,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664263269] [2022-02-18 14:41:51,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:51,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:41:51,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:51,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:41:51,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:41:51,358 INFO L87 Difference]: Start difference. First operand 51914 states and 238539 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:52,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:52,173 INFO L93 Difference]: Finished difference Result 71139 states and 329111 transitions. [2022-02-18 14:41:52,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:41:52,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:41:52,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:52,545 INFO L225 Difference]: With dead ends: 71139 [2022-02-18 14:41:52,545 INFO L226 Difference]: Without dead ends: 71139 [2022-02-18 14:41:52,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:41:52,546 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 151 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:52,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 872 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:52,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71139 states. [2022-02-18 14:41:54,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71139 to 47740. [2022-02-18 14:41:54,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47740 states, 47739 states have (on average 4.590628207545194) internal successors, (219152), 47739 states have internal predecessors, (219152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:54,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47740 states to 47740 states and 219152 transitions. [2022-02-18 14:41:54,365 INFO L78 Accepts]: Start accepts. Automaton has 47740 states and 219152 transitions. Word has length 193 [2022-02-18 14:41:54,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:54,366 INFO L470 AbstractCegarLoop]: Abstraction has 47740 states and 219152 transitions. [2022-02-18 14:41:54,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:54,366 INFO L276 IsEmpty]: Start isEmpty. Operand 47740 states and 219152 transitions. [2022-02-18 14:41:54,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:41:54,817 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:54,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:54,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-18 14:41:54,818 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:54,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:54,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1171032726, now seen corresponding path program 4 times [2022-02-18 14:41:54,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:54,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091876548] [2022-02-18 14:41:54,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:54,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:55,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:55,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091876548] [2022-02-18 14:41:55,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091876548] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:55,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:55,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:41:55,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688950763] [2022-02-18 14:41:55,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:55,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:41:55,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:55,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:41:55,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:41:55,048 INFO L87 Difference]: Start difference. First operand 47740 states and 219152 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:56,054 INFO L93 Difference]: Finished difference Result 89574 states and 414198 transitions. [2022-02-18 14:41:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:41:56,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:41:56,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:56,471 INFO L225 Difference]: With dead ends: 89574 [2022-02-18 14:41:56,471 INFO L226 Difference]: Without dead ends: 89574 [2022-02-18 14:41:56,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:41:56,472 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 171 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:56,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 848 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:41:56,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89574 states. [2022-02-18 14:41:58,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89574 to 48721. [2022-02-18 14:41:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48721 states, 48720 states have (on average 4.620094417077175) internal successors, (225091), 48720 states have internal predecessors, (225091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:58,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48721 states to 48721 states and 225091 transitions. [2022-02-18 14:41:58,754 INFO L78 Accepts]: Start accepts. Automaton has 48721 states and 225091 transitions. Word has length 193 [2022-02-18 14:41:58,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:58,754 INFO L470 AbstractCegarLoop]: Abstraction has 48721 states and 225091 transitions. [2022-02-18 14:41:58,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:58,754 INFO L276 IsEmpty]: Start isEmpty. Operand 48721 states and 225091 transitions. [2022-02-18 14:41:58,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:41:58,887 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:58,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:58,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-18 14:41:58,887 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:41:58,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:58,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1012284598, now seen corresponding path program 5 times [2022-02-18 14:41:58,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:58,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522812128] [2022-02-18 14:41:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:58,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:58,977 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:58,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:58,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522812128] [2022-02-18 14:41:58,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522812128] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:58,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:58,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:41:58,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622805798] [2022-02-18 14:41:58,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:58,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:41:58,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:58,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:41:58,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:41:58,978 INFO L87 Difference]: Start difference. First operand 48721 states and 225091 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:59,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:59,784 INFO L93 Difference]: Finished difference Result 65704 states and 300181 transitions. [2022-02-18 14:41:59,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:41:59,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:41:59,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:00,079 INFO L225 Difference]: With dead ends: 65704 [2022-02-18 14:42:00,079 INFO L226 Difference]: Without dead ends: 64495 [2022-02-18 14:42:00,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:42:00,080 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 141 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:00,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 826 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:00,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64495 states. [2022-02-18 14:42:01,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64495 to 48992. [2022-02-18 14:42:01,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48992 states, 48991 states have (on average 4.604845788001878) internal successors, (225596), 48991 states have internal predecessors, (225596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48992 states to 48992 states and 225596 transitions. [2022-02-18 14:42:02,027 INFO L78 Accepts]: Start accepts. Automaton has 48992 states and 225596 transitions. Word has length 193 [2022-02-18 14:42:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:02,028 INFO L470 AbstractCegarLoop]: Abstraction has 48992 states and 225596 transitions. [2022-02-18 14:42:02,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 48992 states and 225596 transitions. [2022-02-18 14:42:02,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:02,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:02,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:02,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-18 14:42:02,167 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:02,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:02,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1736641318, now seen corresponding path program 6 times [2022-02-18 14:42:02,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:02,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728113594] [2022-02-18 14:42:02,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:02,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:02,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:02,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728113594] [2022-02-18 14:42:02,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728113594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:02,257 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:02,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:02,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430708411] [2022-02-18 14:42:02,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:02,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:02,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:02,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:02,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:02,258 INFO L87 Difference]: Start difference. First operand 48992 states and 225596 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:03,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:03,265 INFO L93 Difference]: Finished difference Result 85397 states and 389483 transitions. [2022-02-18 14:42:03,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:42:03,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:03,933 INFO L225 Difference]: With dead ends: 85397 [2022-02-18 14:42:03,933 INFO L226 Difference]: Without dead ends: 85397 [2022-02-18 14:42:03,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:42:03,934 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 184 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:03,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 505 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:04,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85397 states. [2022-02-18 14:42:05,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85397 to 44940. [2022-02-18 14:42:05,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44940 states, 44939 states have (on average 4.514630944168762) internal successors, (202883), 44939 states have internal predecessors, (202883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44940 states to 44940 states and 202883 transitions. [2022-02-18 14:42:05,799 INFO L78 Accepts]: Start accepts. Automaton has 44940 states and 202883 transitions. Word has length 193 [2022-02-18 14:42:05,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:05,799 INFO L470 AbstractCegarLoop]: Abstraction has 44940 states and 202883 transitions. [2022-02-18 14:42:05,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 44940 states and 202883 transitions. [2022-02-18 14:42:05,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:05,916 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:05,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:05,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-18 14:42:05,917 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:05,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:05,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1577893190, now seen corresponding path program 7 times [2022-02-18 14:42:05,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:05,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800975960] [2022-02-18 14:42:05,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:05,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:06,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:06,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800975960] [2022-02-18 14:42:06,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800975960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:06,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:06,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:06,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131648085] [2022-02-18 14:42:06,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:06,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:06,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:06,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:06,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:06,016 INFO L87 Difference]: Start difference. First operand 44940 states and 202883 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:06,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:06,777 INFO L93 Difference]: Finished difference Result 63567 states and 286124 transitions. [2022-02-18 14:42:06,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:42:06,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:06,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:07,251 INFO L225 Difference]: With dead ends: 63567 [2022-02-18 14:42:07,251 INFO L226 Difference]: Without dead ends: 62358 [2022-02-18 14:42:07,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:07,251 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 119 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:07,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 623 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:07,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62358 states. [2022-02-18 14:42:08,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62358 to 43959. [2022-02-18 14:42:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43959 states, 43958 states have (on average 4.480276627690068) internal successors, (196944), 43958 states have internal predecessors, (196944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43959 states to 43959 states and 196944 transitions. [2022-02-18 14:42:08,838 INFO L78 Accepts]: Start accepts. Automaton has 43959 states and 196944 transitions. Word has length 193 [2022-02-18 14:42:08,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:08,839 INFO L470 AbstractCegarLoop]: Abstraction has 43959 states and 196944 transitions. [2022-02-18 14:42:08,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 43959 states and 196944 transitions. [2022-02-18 14:42:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:08,961 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:08,961 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:08,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-18 14:42:08,961 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:08,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:08,962 INFO L85 PathProgramCache]: Analyzing trace with hash 565815936, now seen corresponding path program 8 times [2022-02-18 14:42:08,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:08,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478047181] [2022-02-18 14:42:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:08,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:09,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:09,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:09,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478047181] [2022-02-18 14:42:09,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478047181] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:09,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9800033] [2022-02-18 14:42:09,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:42:09,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:09,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:42:09,092 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:42:09,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-18 14:42:09,248 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:42:09,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:42:09,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-18 14:42:09,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:42:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:09,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:42:09,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9800033] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:09,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:42:09,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-02-18 14:42:09,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224933354] [2022-02-18 14:42:09,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:09,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:42:09,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:09,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:42:09,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:42:09,571 INFO L87 Difference]: Start difference. First operand 43959 states and 196944 transitions. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:10,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:10,595 INFO L93 Difference]: Finished difference Result 82418 states and 369049 transitions. [2022-02-18 14:42:10,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:42:10,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:10,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:11,175 INFO L225 Difference]: With dead ends: 82418 [2022-02-18 14:42:11,175 INFO L226 Difference]: Without dead ends: 82148 [2022-02-18 14:42:11,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-02-18 14:42:11,176 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 164 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:11,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 906 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:42:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82148 states. [2022-02-18 14:42:12,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82148 to 54871. [2022-02-18 14:42:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54871 states, 54870 states have (on average 4.5176052487698195) internal successors, (247881), 54870 states have internal predecessors, (247881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54871 states to 54871 states and 247881 transitions. [2022-02-18 14:42:13,408 INFO L78 Accepts]: Start accepts. Automaton has 54871 states and 247881 transitions. Word has length 193 [2022-02-18 14:42:13,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:13,408 INFO L470 AbstractCegarLoop]: Abstraction has 54871 states and 247881 transitions. [2022-02-18 14:42:13,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 54871 states and 247881 transitions. [2022-02-18 14:42:13,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:13,583 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:13,583 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:13,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-18 14:42:13,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-02-18 14:42:13,784 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:13,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:13,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1901545794, now seen corresponding path program 9 times [2022-02-18 14:42:13,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:13,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924666187] [2022-02-18 14:42:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:13,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:13,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:13,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924666187] [2022-02-18 14:42:13,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924666187] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:13,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197861718] [2022-02-18 14:42:13,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:42:13,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:13,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:42:13,910 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:42:13,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-18 14:42:14,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-18 14:42:14,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:42:14,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-18 14:42:14,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:42:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:14,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:42:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:42:15,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197861718] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:42:15,286 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:42:15,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 12] total 23 [2022-02-18 14:42:15,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147557319] [2022-02-18 14:42:15,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:42:15,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:42:15,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:15,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:42:15,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:42:15,287 INFO L87 Difference]: Start difference. First operand 54871 states and 247881 transitions. Second operand has 23 states, 23 states have (on average 21.695652173913043) internal successors, (499), 23 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:19,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:19,636 INFO L93 Difference]: Finished difference Result 145624 states and 642093 transitions. [2022-02-18 14:42:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-18 14:42:19,636 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 21.695652173913043) internal successors, (499), 23 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:19,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:20,677 INFO L225 Difference]: With dead ends: 145624 [2022-02-18 14:42:20,677 INFO L226 Difference]: Without dead ends: 145624 [2022-02-18 14:42:20,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1791 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1323, Invalid=4839, Unknown=0, NotChecked=0, Total=6162 [2022-02-18 14:42:20,679 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1866 mSDsluCounter, 5776 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 5282 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:20,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1866 Valid, 5282 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-18 14:42:20,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145624 states. [2022-02-18 14:42:23,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145624 to 50796. [2022-02-18 14:42:23,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50796 states, 50795 states have (on average 4.526764445319421) internal successors, (229937), 50795 states have internal predecessors, (229937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50796 states to 50796 states and 229937 transitions. [2022-02-18 14:42:23,520 INFO L78 Accepts]: Start accepts. Automaton has 50796 states and 229937 transitions. Word has length 193 [2022-02-18 14:42:23,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:23,520 INFO L470 AbstractCegarLoop]: Abstraction has 50796 states and 229937 transitions. [2022-02-18 14:42:23,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 21.695652173913043) internal successors, (499), 23 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:23,521 INFO L276 IsEmpty]: Start isEmpty. Operand 50796 states and 229937 transitions. [2022-02-18 14:42:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:23,660 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:23,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:23,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-18 14:42:23,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-02-18 14:42:23,861 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:23,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:23,862 INFO L85 PathProgramCache]: Analyzing trace with hash -856930020, now seen corresponding path program 2 times [2022-02-18 14:42:23,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:23,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070382218] [2022-02-18 14:42:24,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:24,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:24,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:24,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070382218] [2022-02-18 14:42:24,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070382218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:24,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:24,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:24,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651259443] [2022-02-18 14:42:24,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:24,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:24,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:24,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:24,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:24,296 INFO L87 Difference]: Start difference. First operand 50796 states and 229937 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:25,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:25,339 INFO L93 Difference]: Finished difference Result 104948 states and 469623 transitions. [2022-02-18 14:42:25,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:42:25,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:25,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:26,142 INFO L225 Difference]: With dead ends: 104948 [2022-02-18 14:42:26,142 INFO L226 Difference]: Without dead ends: 104948 [2022-02-18 14:42:26,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:42:26,143 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 194 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:26,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 704 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:26,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104948 states. [2022-02-18 14:42:28,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104948 to 50083. [2022-02-18 14:42:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50083 states, 50082 states have (on average 4.545744978235693) internal successors, (227660), 50082 states have internal predecessors, (227660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50083 states to 50083 states and 227660 transitions. [2022-02-18 14:42:28,381 INFO L78 Accepts]: Start accepts. Automaton has 50083 states and 227660 transitions. Word has length 193 [2022-02-18 14:42:28,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:28,381 INFO L470 AbstractCegarLoop]: Abstraction has 50083 states and 227660 transitions. [2022-02-18 14:42:28,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 50083 states and 227660 transitions. [2022-02-18 14:42:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:28,864 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:28,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:28,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-18 14:42:28,865 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:28,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:28,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1019929886, now seen corresponding path program 3 times [2022-02-18 14:42:28,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:28,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26965961] [2022-02-18 14:42:28,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:28,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:29,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:29,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26965961] [2022-02-18 14:42:29,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26965961] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:29,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16098412] [2022-02-18 14:42:29,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:42:29,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:29,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:42:29,182 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:42:29,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-18 14:42:29,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-18 14:42:29,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:42:29,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-18 14:42:29,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:42:29,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:29,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:42:30,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:30,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16098412] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:30,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-18 14:42:30,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2022-02-18 14:42:30,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233212542] [2022-02-18 14:42:30,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:30,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:42:30,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:30,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:42:30,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-02-18 14:42:30,203 INFO L87 Difference]: Start difference. First operand 50083 states and 227660 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:31,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:31,078 INFO L93 Difference]: Finished difference Result 77723 states and 349661 transitions. [2022-02-18 14:42:31,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 14:42:31,078 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:31,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:31,652 INFO L225 Difference]: With dead ends: 77723 [2022-02-18 14:42:31,652 INFO L226 Difference]: Without dead ends: 77723 [2022-02-18 14:42:31,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:42:31,654 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 351 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:31,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1059 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:31,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77723 states. [2022-02-18 14:42:33,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77723 to 48617. [2022-02-18 14:42:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48617 states, 48616 states have (on average 4.544244693105151) internal successors, (220923), 48616 states have internal predecessors, (220923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:33,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48617 states to 48617 states and 220923 transitions. [2022-02-18 14:42:33,515 INFO L78 Accepts]: Start accepts. Automaton has 48617 states and 220923 transitions. Word has length 193 [2022-02-18 14:42:33,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:33,519 INFO L470 AbstractCegarLoop]: Abstraction has 48617 states and 220923 transitions. [2022-02-18 14:42:33,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:33,519 INFO L276 IsEmpty]: Start isEmpty. Operand 48617 states and 220923 transitions. [2022-02-18 14:42:33,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:33,649 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:33,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:33,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-18 14:42:33,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-02-18 14:42:33,851 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:33,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:33,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2042137804, now seen corresponding path program 4 times [2022-02-18 14:42:33,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:33,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305219993] [2022-02-18 14:42:33,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:33,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:33,977 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:33,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:33,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305219993] [2022-02-18 14:42:33,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305219993] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:33,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:33,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:33,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271587874] [2022-02-18 14:42:33,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:33,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:33,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:33,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:33,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:33,979 INFO L87 Difference]: Start difference. First operand 48617 states and 220923 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:34,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:34,735 INFO L93 Difference]: Finished difference Result 62629 states and 283392 transitions. [2022-02-18 14:42:34,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:42:34,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:34,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:35,008 INFO L225 Difference]: With dead ends: 62629 [2022-02-18 14:42:35,008 INFO L226 Difference]: Without dead ends: 61657 [2022-02-18 14:42:35,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:35,009 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 110 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:35,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 624 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:35,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61657 states. [2022-02-18 14:42:36,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61657 to 53009. [2022-02-18 14:42:36,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53009 states, 53008 states have (on average 4.527920313914881) internal successors, (240016), 53008 states have internal predecessors, (240016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53009 states to 53009 states and 240016 transitions. [2022-02-18 14:42:36,982 INFO L78 Accepts]: Start accepts. Automaton has 53009 states and 240016 transitions. Word has length 193 [2022-02-18 14:42:36,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:36,983 INFO L470 AbstractCegarLoop]: Abstraction has 53009 states and 240016 transitions. [2022-02-18 14:42:36,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:36,983 INFO L276 IsEmpty]: Start isEmpty. Operand 53009 states and 240016 transitions. [2022-02-18 14:42:37,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:37,132 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:37,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:37,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-18 14:42:37,133 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:37,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:37,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1372653890, now seen corresponding path program 5 times [2022-02-18 14:42:37,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:37,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045423271] [2022-02-18 14:42:37,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:37,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:37,223 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:42:37,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:37,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045423271] [2022-02-18 14:42:37,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045423271] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:37,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:37,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:37,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989945448] [2022-02-18 14:42:37,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:37,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:37,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:37,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:37,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:37,225 INFO L87 Difference]: Start difference. First operand 53009 states and 240016 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:38,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:38,480 INFO L93 Difference]: Finished difference Result 98228 states and 437783 transitions. [2022-02-18 14:42:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:42:38,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:38,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:38,981 INFO L225 Difference]: With dead ends: 98228 [2022-02-18 14:42:38,982 INFO L226 Difference]: Without dead ends: 98228 [2022-02-18 14:42:38,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:42:38,982 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 202 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:38,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 522 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:39,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98228 states. [2022-02-18 14:42:40,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98228 to 50484. [2022-02-18 14:42:40,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50484 states, 50483 states have (on average 4.475110433215142) internal successors, (225917), 50483 states have internal predecessors, (225917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:41,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50484 states to 50484 states and 225917 transitions. [2022-02-18 14:42:41,426 INFO L78 Accepts]: Start accepts. Automaton has 50484 states and 225917 transitions. Word has length 193 [2022-02-18 14:42:41,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:41,427 INFO L470 AbstractCegarLoop]: Abstraction has 50484 states and 225917 transitions. [2022-02-18 14:42:41,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:41,427 INFO L276 IsEmpty]: Start isEmpty. Operand 50484 states and 225917 transitions. [2022-02-18 14:42:41,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:41,574 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:41,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:41,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-18 14:42:41,574 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:41,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:41,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1535653756, now seen corresponding path program 6 times [2022-02-18 14:42:41,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:41,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843953257] [2022-02-18 14:42:41,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:41,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:41,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:41,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:41,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843953257] [2022-02-18 14:42:41,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843953257] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:41,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355798422] [2022-02-18 14:42:41,764 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 14:42:41,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:41,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:42:41,768 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:42:41,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-18 14:42:41,916 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-02-18 14:42:41,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:42:41,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-18 14:42:41,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:42:42,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:42,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:42:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:43,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355798422] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:43,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-18 14:42:43,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2022-02-18 14:42:43,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967158029] [2022-02-18 14:42:43,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:43,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:42:43,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:43,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:42:43,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-02-18 14:42:43,043 INFO L87 Difference]: Start difference. First operand 50484 states and 225917 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:44,093 INFO L93 Difference]: Finished difference Result 97356 states and 425128 transitions. [2022-02-18 14:42:44,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 14:42:44,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:44,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:44,752 INFO L225 Difference]: With dead ends: 97356 [2022-02-18 14:42:44,752 INFO L226 Difference]: Without dead ends: 97356 [2022-02-18 14:42:44,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:42:44,753 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 488 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:44,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 1189 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:42:44,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97356 states. [2022-02-18 14:42:46,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97356 to 50520. [2022-02-18 14:42:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50520 states, 50519 states have (on average 4.475682416516558) internal successors, (226107), 50519 states have internal predecessors, (226107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50520 states to 50520 states and 226107 transitions. [2022-02-18 14:42:47,220 INFO L78 Accepts]: Start accepts. Automaton has 50520 states and 226107 transitions. Word has length 193 [2022-02-18 14:42:47,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:47,220 INFO L470 AbstractCegarLoop]: Abstraction has 50520 states and 226107 transitions. [2022-02-18 14:42:47,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:47,220 INFO L276 IsEmpty]: Start isEmpty. Operand 50520 states and 226107 transitions. [2022-02-18 14:42:47,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:47,365 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:47,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:47,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-18 14:42:47,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-02-18 14:42:47,566 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:47,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:47,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1050901394, now seen corresponding path program 7 times [2022-02-18 14:42:47,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:47,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676770913] [2022-02-18 14:42:47,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:47,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:48,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:48,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676770913] [2022-02-18 14:42:48,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676770913] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:48,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:48,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 14:42:48,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312523500] [2022-02-18 14:42:48,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:48,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:42:48,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:42:48,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:42:48,102 INFO L87 Difference]: Start difference. First operand 50520 states and 226107 transitions. Second operand has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:49,372 INFO L93 Difference]: Finished difference Result 85899 states and 381665 transitions. [2022-02-18 14:42:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 14:42:49,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:49,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:49,816 INFO L225 Difference]: With dead ends: 85899 [2022-02-18 14:42:49,816 INFO L226 Difference]: Without dead ends: 85899 [2022-02-18 14:42:49,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2022-02-18 14:42:49,817 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 872 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:49,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 901 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:42:49,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85899 states. [2022-02-18 14:42:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85899 to 50552. [2022-02-18 14:42:51,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50552 states, 50551 states have (on average 4.476172578188364) internal successors, (226275), 50551 states have internal predecessors, (226275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:51,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50552 states to 50552 states and 226275 transitions. [2022-02-18 14:42:51,943 INFO L78 Accepts]: Start accepts. Automaton has 50552 states and 226275 transitions. Word has length 193 [2022-02-18 14:42:51,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:51,943 INFO L470 AbstractCegarLoop]: Abstraction has 50552 states and 226275 transitions. [2022-02-18 14:42:51,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:51,944 INFO L276 IsEmpty]: Start isEmpty. Operand 50552 states and 226275 transitions. [2022-02-18 14:42:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:52,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:52,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:52,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-18 14:42:52,078 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:52,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:52,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1864108478, now seen corresponding path program 8 times [2022-02-18 14:42:52,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:52,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401598196] [2022-02-18 14:42:52,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:52,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:52,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:52,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401598196] [2022-02-18 14:42:52,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401598196] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:52,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:52,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:52,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793083596] [2022-02-18 14:42:52,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:52,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:52,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:52,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:52,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:52,177 INFO L87 Difference]: Start difference. First operand 50552 states and 226275 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:53,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:53,011 INFO L93 Difference]: Finished difference Result 78651 states and 349294 transitions. [2022-02-18 14:42:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:42:53,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:53,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:53,855 INFO L225 Difference]: With dead ends: 78651 [2022-02-18 14:42:53,856 INFO L226 Difference]: Without dead ends: 77679 [2022-02-18 14:42:53,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:53,856 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 150 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:53,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 453 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:53,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77679 states. [2022-02-18 14:42:55,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77679 to 49722. [2022-02-18 14:42:55,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49722 states, 49721 states have (on average 4.449226684901752) internal successors, (221220), 49721 states have internal predecessors, (221220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:55,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49722 states to 49722 states and 221220 transitions. [2022-02-18 14:42:55,804 INFO L78 Accepts]: Start accepts. Automaton has 49722 states and 221220 transitions. Word has length 193 [2022-02-18 14:42:55,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:55,804 INFO L470 AbstractCegarLoop]: Abstraction has 49722 states and 221220 transitions. [2022-02-18 14:42:55,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:55,804 INFO L276 IsEmpty]: Start isEmpty. Operand 49722 states and 221220 transitions. [2022-02-18 14:42:55,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:55,945 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:55,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:55,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-18 14:42:55,945 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:55,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:55,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1275988832, now seen corresponding path program 9 times [2022-02-18 14:42:55,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:55,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140812549] [2022-02-18 14:42:55,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:55,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:56,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:56,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140812549] [2022-02-18 14:42:56,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140812549] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:56,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:56,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 14:42:56,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469281288] [2022-02-18 14:42:56,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:56,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:42:56,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:56,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:42:56,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:42:56,426 INFO L87 Difference]: Start difference. First operand 49722 states and 221220 transitions. Second operand has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:56,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:56,984 INFO L93 Difference]: Finished difference Result 55334 states and 245140 transitions. [2022-02-18 14:42:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:42:56,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:42:56,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:57,410 INFO L225 Difference]: With dead ends: 55334 [2022-02-18 14:42:57,410 INFO L226 Difference]: Without dead ends: 55334 [2022-02-18 14:42:57,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:42:57,411 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 284 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:57,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 986 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:57,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55334 states. [2022-02-18 14:42:58,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55334 to 49938. [2022-02-18 14:42:58,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49938 states, 49937 states have (on average 4.442717824458818) internal successors, (221856), 49937 states have internal predecessors, (221856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49938 states to 49938 states and 221856 transitions. [2022-02-18 14:42:59,047 INFO L78 Accepts]: Start accepts. Automaton has 49938 states and 221856 transitions. Word has length 193 [2022-02-18 14:42:59,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:59,047 INFO L470 AbstractCegarLoop]: Abstraction has 49938 states and 221856 transitions. [2022-02-18 14:42:59,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:59,047 INFO L276 IsEmpty]: Start isEmpty. Operand 49938 states and 221856 transitions. [2022-02-18 14:42:59,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:42:59,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:59,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:59,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-18 14:42:59,193 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:42:59,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash -554450516, now seen corresponding path program 10 times [2022-02-18 14:42:59,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:59,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744223549] [2022-02-18 14:42:59,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:59,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:59,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:59,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744223549] [2022-02-18 14:42:59,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744223549] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:59,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:59,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 14:42:59,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786720333] [2022-02-18 14:42:59,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:59,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:42:59,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:59,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:42:59,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:42:59,390 INFO L87 Difference]: Start difference. First operand 49938 states and 221856 transitions. Second operand has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:00,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:43:00,416 INFO L93 Difference]: Finished difference Result 60180 states and 264741 transitions. [2022-02-18 14:43:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 14:43:00,416 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:43:00,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:43:00,666 INFO L225 Difference]: With dead ends: 60180 [2022-02-18 14:43:00,666 INFO L226 Difference]: Without dead ends: 60180 [2022-02-18 14:43:00,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-02-18 14:43:00,666 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 401 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:43:00,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 1160 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:43:00,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60180 states. [2022-02-18 14:43:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60180 to 50373. [2022-02-18 14:43:02,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50373 states, 50372 states have (on average 4.432502183752878) internal successors, (223274), 50372 states have internal predecessors, (223274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:02,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50373 states to 50373 states and 223274 transitions. [2022-02-18 14:43:02,569 INFO L78 Accepts]: Start accepts. Automaton has 50373 states and 223274 transitions. Word has length 193 [2022-02-18 14:43:02,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:43:02,569 INFO L470 AbstractCegarLoop]: Abstraction has 50373 states and 223274 transitions. [2022-02-18 14:43:02,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 50373 states and 223274 transitions. [2022-02-18 14:43:02,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:43:02,711 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:43:02,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:43:02,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-18 14:43:02,712 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:43:02,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:43:02,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1348886772, now seen corresponding path program 11 times [2022-02-18 14:43:02,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:43:02,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728211109] [2022-02-18 14:43:02,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:43:02,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:43:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:43:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:43:02,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:43:02,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728211109] [2022-02-18 14:43:02,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728211109] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:43:02,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:43:02,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:43:02,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175938580] [2022-02-18 14:43:02,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:43:02,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:43:02,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:43:02,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:43:02,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:43:02,785 INFO L87 Difference]: Start difference. First operand 50373 states and 223274 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:03,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:43:03,533 INFO L93 Difference]: Finished difference Result 52563 states and 228703 transitions. [2022-02-18 14:43:03,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:43:03,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:43:03,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:43:03,761 INFO L225 Difference]: With dead ends: 52563 [2022-02-18 14:43:03,761 INFO L226 Difference]: Without dead ends: 50415 [2022-02-18 14:43:03,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:43:03,762 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 143 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:43:03,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 806 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:43:03,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50415 states. [2022-02-18 14:43:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50415 to 41178. [2022-02-18 14:43:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41178 states, 41177 states have (on average 4.4477013866964565) internal successors, (183143), 41177 states have internal predecessors, (183143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:05,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41178 states to 41178 states and 183143 transitions. [2022-02-18 14:43:05,082 INFO L78 Accepts]: Start accepts. Automaton has 41178 states and 183143 transitions. Word has length 193 [2022-02-18 14:43:05,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:43:05,082 INFO L470 AbstractCegarLoop]: Abstraction has 41178 states and 183143 transitions. [2022-02-18 14:43:05,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:05,082 INFO L276 IsEmpty]: Start isEmpty. Operand 41178 states and 183143 transitions. [2022-02-18 14:43:05,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:43:05,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:43:05,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:43:05,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-18 14:43:05,192 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:43:05,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:43:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash 146727776, now seen corresponding path program 10 times [2022-02-18 14:43:05,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:43:05,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055131955] [2022-02-18 14:43:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:43:05,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:43:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:43:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:43:05,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:43:05,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055131955] [2022-02-18 14:43:05,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055131955] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:43:05,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:43:05,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 14:43:05,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678663450] [2022-02-18 14:43:05,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:43:05,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:43:05,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:43:05,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:43:05,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:43:05,337 INFO L87 Difference]: Start difference. First operand 41178 states and 183143 transitions. Second operand has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:06,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:43:06,032 INFO L93 Difference]: Finished difference Result 43562 states and 193621 transitions. [2022-02-18 14:43:06,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 14:43:06,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:43:06,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:43:06,210 INFO L225 Difference]: With dead ends: 43562 [2022-02-18 14:43:06,210 INFO L226 Difference]: Without dead ends: 43466 [2022-02-18 14:43:06,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:43:06,211 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 389 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:43:06,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 645 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:43:06,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43466 states. [2022-02-18 14:43:07,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43466 to 41274. [2022-02-18 14:43:07,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41274 states, 41273 states have (on average 4.443946405640491) internal successors, (183415), 41273 states have internal predecessors, (183415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:07,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41274 states to 41274 states and 183415 transitions. [2022-02-18 14:43:07,557 INFO L78 Accepts]: Start accepts. Automaton has 41274 states and 183415 transitions. Word has length 193 [2022-02-18 14:43:07,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:43:07,558 INFO L470 AbstractCegarLoop]: Abstraction has 41274 states and 183415 transitions. [2022-02-18 14:43:07,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:07,558 INFO L276 IsEmpty]: Start isEmpty. Operand 41274 states and 183415 transitions. [2022-02-18 14:43:07,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:43:07,670 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:43:07,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:43:07,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-18 14:43:07,670 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:43:07,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:43:07,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1582888738, now seen corresponding path program 11 times [2022-02-18 14:43:07,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:43:07,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429928721] [2022-02-18 14:43:07,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:43:07,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:43:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:43:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:43:07,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:43:07,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429928721] [2022-02-18 14:43:07,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429928721] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:43:07,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:43:07,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 14:43:07,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374582258] [2022-02-18 14:43:07,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:43:07,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:43:07,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:43:07,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:43:07,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:43:07,854 INFO L87 Difference]: Start difference. First operand 41274 states and 183415 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:08,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:43:08,714 INFO L93 Difference]: Finished difference Result 51804 states and 227405 transitions. [2022-02-18 14:43:08,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 14:43:08,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:43:08,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:43:08,940 INFO L225 Difference]: With dead ends: 51804 [2022-02-18 14:43:08,940 INFO L226 Difference]: Without dead ends: 51360 [2022-02-18 14:43:08,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:43:08,940 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 345 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:43:08,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 897 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:43:09,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51360 states. [2022-02-18 14:43:10,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51360 to 42522. [2022-02-18 14:43:10,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42522 states, 42521 states have (on average 4.439571035488347) internal successors, (188775), 42521 states have internal predecessors, (188775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:10,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42522 states to 42522 states and 188775 transitions. [2022-02-18 14:43:10,346 INFO L78 Accepts]: Start accepts. Automaton has 42522 states and 188775 transitions. Word has length 193 [2022-02-18 14:43:10,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:43:10,346 INFO L470 AbstractCegarLoop]: Abstraction has 42522 states and 188775 transitions. [2022-02-18 14:43:10,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:10,346 INFO L276 IsEmpty]: Start isEmpty. Operand 42522 states and 188775 transitions. [2022-02-18 14:43:10,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:43:10,448 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:43:10,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:43:10,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-18 14:43:10,448 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:43:10,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:43:10,448 INFO L85 PathProgramCache]: Analyzing trace with hash -852612704, now seen corresponding path program 12 times [2022-02-18 14:43:10,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:43:10,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370557390] [2022-02-18 14:43:10,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:43:10,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:43:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:43:10,818 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:43:10,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:43:10,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370557390] [2022-02-18 14:43:10,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370557390] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:43:10,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:43:10,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 14:43:10,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18792635] [2022-02-18 14:43:10,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:43:10,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:43:10,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:43:10,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:43:10,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:43:10,819 INFO L87 Difference]: Start difference. First operand 42522 states and 188775 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:11,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:43:11,725 INFO L93 Difference]: Finished difference Result 63582 states and 284056 transitions. [2022-02-18 14:43:11,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 14:43:11,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:43:11,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:43:12,016 INFO L225 Difference]: With dead ends: 63582 [2022-02-18 14:43:12,016 INFO L226 Difference]: Without dead ends: 63582 [2022-02-18 14:43:12,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-02-18 14:43:12,017 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 440 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:43:12,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 736 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:43:12,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63582 states. [2022-02-18 14:43:13,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63582 to 38583. [2022-02-18 14:43:13,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38583 states, 38582 states have (on average 4.440308952361205) internal successors, (171316), 38582 states have internal predecessors, (171316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:13,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38583 states to 38583 states and 171316 transitions. [2022-02-18 14:43:13,548 INFO L78 Accepts]: Start accepts. Automaton has 38583 states and 171316 transitions. Word has length 193 [2022-02-18 14:43:13,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:43:13,548 INFO L470 AbstractCegarLoop]: Abstraction has 38583 states and 171316 transitions. [2022-02-18 14:43:13,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:13,549 INFO L276 IsEmpty]: Start isEmpty. Operand 38583 states and 171316 transitions. [2022-02-18 14:43:13,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-18 14:43:13,660 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:43:13,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:43:13,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-18 14:43:13,660 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:43:13,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:43:13,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1701096112, now seen corresponding path program 13 times [2022-02-18 14:43:13,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:43:13,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418648258] [2022-02-18 14:43:13,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:43:13,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:43:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:43:13,720 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:43:13,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:43:13,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418648258] [2022-02-18 14:43:13,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418648258] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:43:13,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:43:13,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:43:13,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245351127] [2022-02-18 14:43:13,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:43:13,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:43:13,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:43:13,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:43:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:43:13,721 INFO L87 Difference]: Start difference. First operand 38583 states and 171316 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:43:14,270 INFO L93 Difference]: Finished difference Result 39798 states and 174169 transitions. [2022-02-18 14:43:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:43:14,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-02-18 14:43:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:43:14,423 INFO L225 Difference]: With dead ends: 39798 [2022-02-18 14:43:14,423 INFO L226 Difference]: Without dead ends: 39654 [2022-02-18 14:43:14,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:43:14,428 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 132 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:43:14,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 615 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:43:14,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39654 states. [2022-02-18 14:43:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39654 to 27853. [2022-02-18 14:43:15,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27853 states, 27852 states have (on average 4.358753410886112) internal successors, (121400), 27852 states have internal predecessors, (121400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:15,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27853 states to 27853 states and 121400 transitions. [2022-02-18 14:43:15,263 INFO L78 Accepts]: Start accepts. Automaton has 27853 states and 121400 transitions. Word has length 193 [2022-02-18 14:43:15,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:43:15,263 INFO L470 AbstractCegarLoop]: Abstraction has 27853 states and 121400 transitions. [2022-02-18 14:43:15,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:43:15,263 INFO L276 IsEmpty]: Start isEmpty. Operand 27853 states and 121400 transitions. [2022-02-18 14:43:15,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-18 14:43:15,325 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:43:15,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:43:15,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-18 14:43:15,325 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 14:43:15,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:43:15,325 INFO L85 PathProgramCache]: Analyzing trace with hash 2026728165, now seen corresponding path program 1 times [2022-02-18 14:43:15,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:43:15,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948168866] [2022-02-18 14:43:15,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:43:15,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:43:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:43:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:43:17,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:43:17,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948168866] [2022-02-18 14:43:17,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948168866] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:43:17,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687000662] [2022-02-18 14:43:17,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:43:17,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:43:17,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:43:17,434 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:43:17,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-18 14:43:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:43:17,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 119 conjunts are in the unsatisfiable core [2022-02-18 14:43:17,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:43:17,672 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 14:43:17,724 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-02-18 14:43:17,725 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-02-18 14:43:17,794 INFO L353 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-02-18 14:43:17,794 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2022-02-18 14:43:18,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:18,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:18,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:18,880 INFO L353 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-02-18 14:43:18,880 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 33 [2022-02-18 14:43:19,294 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-18 14:43:20,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:20,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:20,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:20,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:20,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:20,864 INFO L353 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2022-02-18 14:43:20,865 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 20 [2022-02-18 14:43:21,392 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-18 14:43:22,453 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 14:43:22,736 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 14:43:23,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:23,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:23,457 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2022-02-18 14:43:23,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:23,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:23,888 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2022-02-18 14:43:25,001 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 11 [2022-02-18 14:43:25,025 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:43:25,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:43:38,617 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-02-18 14:43:38,617 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 225 treesize of output 123 [2022-02-18 14:43:38,773 INFO L353 Elim1Store]: treesize reduction 81, result has 54.7 percent of original size [2022-02-18 14:43:38,774 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 927562 treesize of output 894627 [2022-02-18 14:43:42,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:42,097 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:43:42,098 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 894508 treesize of output 845020 [2022-02-18 14:43:43,679 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:43:43,680 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 843766 treesize of output 647174 [2022-02-18 14:43:45,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:43:45,333 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:43:45,334 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 648364 treesize of output 623644 [2022-02-18 14:43:47,049 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:43:47,050 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 622582 treesize of output 524294