/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:40:24,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:40:24,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:40:24,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:40:24,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:40:24,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:40:24,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:40:24,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:40:24,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:40:24,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:40:24,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:40:24,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:40:24,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:40:24,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:40:24,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:40:24,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:40:24,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:40:24,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:40:24,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:40:24,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:40:24,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:40:24,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:40:24,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:40:24,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:40:24,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:40:24,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:40:24,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:40:24,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:40:24,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:40:24,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:40:24,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:40:24,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:40:24,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:40:24,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:40:24,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:40:24,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:40:24,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:40:24,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:40:24,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:40:24,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:40:24,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:40:24,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:40:24,789 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:40:24,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:40:24,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:40:24,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:40:24,791 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:40:24,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:40:24,792 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:40:24,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:40:24,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:40:24,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:40:24,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:40:24,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:40:24,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:40:24,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:40:24,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:40:24,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:40:24,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:40:24,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:40:24,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:40:24,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:40:24,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:40:24,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:40:24,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:40:24,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:40:24,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:40:24,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:40:24,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:40:24,796 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:40:24,796 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:40:24,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:40:24,797 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:40:25,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:40:25,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:40:25,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:40:25,097 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:40:25,098 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:40:25,099 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2020-10-16 13:40:25,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abb0bedab/5bb2848eac8646bcac5c47a646b244ea/FLAG087ec9214 [2020-10-16 13:40:25,823 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:40:25,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2020-10-16 13:40:25,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abb0bedab/5bb2848eac8646bcac5c47a646b244ea/FLAG087ec9214 [2020-10-16 13:40:26,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abb0bedab/5bb2848eac8646bcac5c47a646b244ea [2020-10-16 13:40:26,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:40:26,122 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:40:26,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:40:26,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:40:26,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:40:26,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:26,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b8a8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26, skipping insertion in model container [2020-10-16 13:40:26,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:26,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:40:26,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:40:26,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:40:26,768 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:40:26,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:40:26,913 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:40:26,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26 WrapperNode [2020-10-16 13:40:26,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:40:26,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:40:26,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:40:26,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:40:26,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:26,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:26,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:40:26,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:40:26,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:40:26,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:40:26,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:26,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:26,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:26,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:26,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:26,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:26,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (1/1) ... [2020-10-16 13:40:27,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:40:27,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:40:27,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:40:27,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:40:27,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:40:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:40:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:40:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:40:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:40:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:40:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:40:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:40:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:40:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:40:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:40:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:40:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:40:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:40:27,089 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:40:27,525 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:40:27,526 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:40:27,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:40:27 BoogieIcfgContainer [2020-10-16 13:40:27,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:40:27,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:40:27,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:40:27,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:40:27,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:40:26" (1/3) ... [2020-10-16 13:40:27,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bea37c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:40:27, skipping insertion in model container [2020-10-16 13:40:27,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:26" (2/3) ... [2020-10-16 13:40:27,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bea37c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:40:27, skipping insertion in model container [2020-10-16 13:40:27,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:40:27" (3/3) ... [2020-10-16 13:40:27,537 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc.i [2020-10-16 13:40:27,550 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:40:27,550 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:40:27,557 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:40:27,558 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:40:27,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,587 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,587 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,589 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,589 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,590 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,591 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,591 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,596 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,597 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,605 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,605 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,606 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,606 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,608 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,609 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:27,611 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:40:27,626 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:40:27,650 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:40:27,650 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:40:27,650 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:40:27,651 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:40:27,651 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:40:27,651 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:40:27,651 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:40:27,651 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:40:27,666 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:40:27,667 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:40:27,670 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:40:27,673 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 13:40:27,731 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 13:40:27,731 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:40:27,740 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 13:40:27,744 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-16 13:40:29,225 INFO L132 LiptonReduction]: Checked pairs total: 2102 [2020-10-16 13:40:29,226 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-16 13:40:29,233 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-16 13:40:29,257 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-16 13:40:29,260 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-16 13:40:29,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:40:29,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:29,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:29,270 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:29,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:29,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1153400973, now seen corresponding path program 1 times [2020-10-16 13:40:29,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:29,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052773772] [2020-10-16 13:40:29,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:29,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052773772] [2020-10-16 13:40:29,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:29,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:40:29,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [735225940] [2020-10-16 13:40:29,544 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:29,548 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:29,564 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:40:29,564 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:29,568 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:40:29,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:40:29,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:29,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:40:29,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:40:29,590 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-16 13:40:29,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:29,618 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-16 13:40:29,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:40:29,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 13:40:29,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:29,636 INFO L225 Difference]: With dead ends: 214 [2020-10-16 13:40:29,636 INFO L226 Difference]: Without dead ends: 166 [2020-10-16 13:40:29,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:40:29,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-16 13:40:29,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-16 13:40:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-16 13:40:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-16 13:40:29,702 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-16 13:40:29,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:29,704 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-16 13:40:29,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:40:29,704 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-16 13:40:29,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:40:29,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:29,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:29,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:40:29,707 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:29,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:29,707 INFO L82 PathProgramCache]: Analyzing trace with hash 837018342, now seen corresponding path program 1 times [2020-10-16 13:40:29,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:29,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500874834] [2020-10-16 13:40:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:29,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:29,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500874834] [2020-10-16 13:40:29,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:29,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:40:29,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [918344623] [2020-10-16 13:40:29,811 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:29,812 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:29,814 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-10-16 13:40:29,815 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:29,870 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:40:29,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:40:29,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:29,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:40:29,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:40:29,873 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-16 13:40:29,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:29,900 INFO L93 Difference]: Finished difference Result 184 states and 465 transitions. [2020-10-16 13:40:29,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:40:29,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 13:40:29,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:29,902 INFO L225 Difference]: With dead ends: 184 [2020-10-16 13:40:29,902 INFO L226 Difference]: Without dead ends: 88 [2020-10-16 13:40:29,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:40:29,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-16 13:40:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-10-16 13:40:29,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-16 13:40:29,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 207 transitions. [2020-10-16 13:40:29,913 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 207 transitions. Word has length 9 [2020-10-16 13:40:29,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:29,914 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 207 transitions. [2020-10-16 13:40:29,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:40:29,914 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 207 transitions. [2020-10-16 13:40:29,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:40:29,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:29,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:29,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:40:29,916 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:29,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:29,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1248093964, now seen corresponding path program 1 times [2020-10-16 13:40:29,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:29,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593445162] [2020-10-16 13:40:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:29,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:29,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593445162] [2020-10-16 13:40:30,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:30,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:40:30,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1029446775] [2020-10-16 13:40:30,001 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:30,002 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:30,004 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions. [2020-10-16 13:40:30,004 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:30,025 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:40:30,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:40:30,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:30,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:40:30,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:40:30,027 INFO L87 Difference]: Start difference. First operand 88 states and 207 transitions. Second operand 4 states. [2020-10-16 13:40:30,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:30,046 INFO L93 Difference]: Finished difference Result 118 states and 268 transitions. [2020-10-16 13:40:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:40:30,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:40:30,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:30,048 INFO L225 Difference]: With dead ends: 118 [2020-10-16 13:40:30,048 INFO L226 Difference]: Without dead ends: 64 [2020-10-16 13:40:30,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:40:30,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-16 13:40:30,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-16 13:40:30,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-16 13:40:30,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 137 transitions. [2020-10-16 13:40:30,056 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 137 transitions. Word has length 11 [2020-10-16 13:40:30,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:30,056 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 137 transitions. [2020-10-16 13:40:30,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:40:30,057 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2020-10-16 13:40:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:40:30,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:30,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:30,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:40:30,058 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:30,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:30,058 INFO L82 PathProgramCache]: Analyzing trace with hash 500064419, now seen corresponding path program 1 times [2020-10-16 13:40:30,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:30,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250320200] [2020-10-16 13:40:30,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:30,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250320200] [2020-10-16 13:40:30,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:30,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:40:30,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [704686160] [2020-10-16 13:40:30,170 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:30,172 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:30,176 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-10-16 13:40:30,176 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:30,222 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:30,250 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:30,264 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:30,282 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:30,308 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1703#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-16 13:40:30,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:40:30,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:30,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:40:30,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:40:30,310 INFO L87 Difference]: Start difference. First operand 64 states and 137 transitions. Second operand 5 states. [2020-10-16 13:40:30,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:30,370 INFO L93 Difference]: Finished difference Result 63 states and 119 transitions. [2020-10-16 13:40:30,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:40:30,371 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:40:30,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:30,372 INFO L225 Difference]: With dead ends: 63 [2020-10-16 13:40:30,372 INFO L226 Difference]: Without dead ends: 42 [2020-10-16 13:40:30,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:40:30,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-16 13:40:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-16 13:40:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-16 13:40:30,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 69 transitions. [2020-10-16 13:40:30,377 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 69 transitions. Word has length 12 [2020-10-16 13:40:30,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:30,377 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 69 transitions. [2020-10-16 13:40:30,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:40:30,378 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2020-10-16 13:40:30,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:40:30,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:30,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:30,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:40:30,379 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:30,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:30,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1451530590, now seen corresponding path program 1 times [2020-10-16 13:40:30,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:30,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423107624] [2020-10-16 13:40:30,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:30,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:30,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423107624] [2020-10-16 13:40:30,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:30,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:40:30,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [316366762] [2020-10-16 13:40:30,456 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:30,458 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:30,462 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 32 transitions. [2020-10-16 13:40:30,462 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:30,486 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:30,563 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [1861#(not (= 3 ~__unbuffered_cnt~0)), 1862#(not (= ~__unbuffered_cnt~0 2)), 1863#(not (= ~__unbuffered_cnt~0 1)), 1864#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:40:30,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 13:40:30,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:30,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 13:40:30,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-16 13:40:30,564 INFO L87 Difference]: Start difference. First operand 42 states and 69 transitions. Second operand 10 states. [2020-10-16 13:40:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:30,635 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-10-16 13:40:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:40:30,636 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-16 13:40:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:30,637 INFO L225 Difference]: With dead ends: 39 [2020-10-16 13:40:30,637 INFO L226 Difference]: Without dead ends: 33 [2020-10-16 13:40:30,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-16 13:40:30,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-16 13:40:30,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-16 13:40:30,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-16 13:40:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-10-16 13:40:30,644 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 14 [2020-10-16 13:40:30,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:30,644 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-10-16 13:40:30,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 13:40:30,645 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-10-16 13:40:30,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:40:30,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:30,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:30,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:40:30,646 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:30,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:30,646 INFO L82 PathProgramCache]: Analyzing trace with hash -958438309, now seen corresponding path program 1 times [2020-10-16 13:40:30,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:30,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316847045] [2020-10-16 13:40:30,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:30,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316847045] [2020-10-16 13:40:30,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:30,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:40:30,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1911167370] [2020-10-16 13:40:30,689 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:30,691 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:30,695 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 36 transitions. [2020-10-16 13:40:30,696 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:30,732 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:40:30,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:40:30,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:30,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:40:30,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:40:30,734 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-10-16 13:40:30,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:30,747 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-10-16 13:40:30,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:40:30,747 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-16 13:40:30,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:30,748 INFO L225 Difference]: With dead ends: 32 [2020-10-16 13:40:30,748 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:40:30,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:40:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:40:30,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:40:30,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:40:30,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:40:30,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-16 13:40:30,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:30,749 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:40:30,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:40:30,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:40:30,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:40:30,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:40:30,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:40:30 BasicIcfg [2020-10-16 13:40:30,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:40:30,757 INFO L168 Benchmark]: Toolchain (without parser) took 4634.40 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 100.4 MB in the beginning and 181.9 MB in the end (delta: -81.5 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:40:30,758 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-16 13:40:30,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.05 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 158.4 MB in the end (delta: -58.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-10-16 13:40:30,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.77 ms. Allocated memory is still 202.4 MB. Free memory was 158.4 MB in the beginning and 156.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:40:30,761 INFO L168 Benchmark]: Boogie Preprocessor took 30.93 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 155.6 MB in the end (delta: 946.6 kB). Peak memory consumption was 946.6 kB. Max. memory is 7.1 GB. [2020-10-16 13:40:30,762 INFO L168 Benchmark]: RCFGBuilder took 527.85 ms. Allocated memory is still 202.4 MB. Free memory was 154.7 MB in the beginning and 132.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:40:30,762 INFO L168 Benchmark]: TraceAbstraction took 3224.62 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 132.5 MB in the beginning and 181.9 MB in the end (delta: -49.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:40:30,767 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 791.05 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 158.4 MB in the end (delta: -58.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.77 ms. Allocated memory is still 202.4 MB. Free memory was 158.4 MB in the beginning and 156.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.93 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 155.6 MB in the end (delta: 946.6 kB). Peak memory consumption was 946.6 kB. Max. memory is 7.1 GB. * RCFGBuilder took 527.85 ms. Allocated memory is still 202.4 MB. Free memory was 154.7 MB in the beginning and 132.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3224.62 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 132.5 MB in the beginning and 181.9 MB in the end (delta: -49.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 621 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 26 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 77 PlacesBefore, 30 PlacesAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 60 TotalNumberOfCompositions, 2102 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 93 SDtfs, 104 SDslu, 126 SDs, 0 SdLazy, 101 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 2328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...