/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:15:53,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:15:53,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:15:53,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:15:53,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:15:53,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:15:53,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:15:53,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:15:53,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:15:53,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:15:53,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:15:53,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:15:53,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:15:53,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:15:53,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:15:53,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:15:53,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:15:53,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:15:53,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:15:53,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:15:53,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:15:53,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:15:53,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:15:53,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:15:53,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 02:15:53,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:15:53,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:15:53,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:15:53,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:15:53,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:15:53,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:15:53,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:15:53,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:15:53,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:15:53,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:15:53,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:15:53,742 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:15:53,763 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:15:53,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:15:53,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:15:53,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:15:53,765 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:15:53,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:15:53,765 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:15:53,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:15:53,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:15:53,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:15:53,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:15:53,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:15:53,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:15:53,767 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:15:53,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:15:53,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:15:53,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:15:53,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:15:53,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:15:53,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:15:53,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:15:53,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:15:53,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:15:53,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:15:53,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:15:53,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:15:53,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:15:53,770 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:15:53,770 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:15:53,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:15:53,770 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:15:54,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:15:54,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:15:54,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:15:54,107 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:15:54,107 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:15:54,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2020-10-22 02:15:54,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a180ceb7/5d31a0475fa74dcf9277959dd9d4560d/FLAGce91e142b [2020-10-22 02:15:54,637 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:15:54,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2020-10-22 02:15:54,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a180ceb7/5d31a0475fa74dcf9277959dd9d4560d/FLAGce91e142b [2020-10-22 02:15:54,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a180ceb7/5d31a0475fa74dcf9277959dd9d4560d [2020-10-22 02:15:54,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:15:54,958 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:15:54,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:15:54,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:15:54,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:15:54,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:15:54" (1/1) ... [2020-10-22 02:15:54,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3948e8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:54, skipping insertion in model container [2020-10-22 02:15:54,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:15:54" (1/1) ... [2020-10-22 02:15:54,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:15:55,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:15:55,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:15:55,520 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:15:55,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:15:55,673 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:15:55,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55 WrapperNode [2020-10-22 02:15:55,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:15:55,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:15:55,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:15:55,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:15:55,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (1/1) ... [2020-10-22 02:15:55,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (1/1) ... [2020-10-22 02:15:55,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:15:55,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:15:55,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:15:55,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:15:55,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (1/1) ... [2020-10-22 02:15:55,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (1/1) ... [2020-10-22 02:15:55,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (1/1) ... [2020-10-22 02:15:55,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (1/1) ... [2020-10-22 02:15:55,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (1/1) ... [2020-10-22 02:15:55,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (1/1) ... [2020-10-22 02:15:55,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (1/1) ... [2020-10-22 02:15:55,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:15:55,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:15:55,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:15:55,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:15:55,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-22 02:15:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:15:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:15:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:15:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:15:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:15:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:15:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:15:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:15:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:15:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:15:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-22 02:15:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-22 02:15:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:15:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:15:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:15:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:15:55,826 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:15:56,215 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:15:56,215 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:15:56,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:15:56 BoogieIcfgContainer [2020-10-22 02:15:56,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:15:56,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:15:56,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:15:56,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:15:56,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:15:54" (1/3) ... [2020-10-22 02:15:56,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2009c6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:15:56, skipping insertion in model container [2020-10-22 02:15:56,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:55" (2/3) ... [2020-10-22 02:15:56,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2009c6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:15:56, skipping insertion in model container [2020-10-22 02:15:56,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:15:56" (3/3) ... [2020-10-22 02:15:56,226 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.opt.i [2020-10-22 02:15:56,238 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:15:56,238 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:15:56,246 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:15:56,247 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:15:56,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,277 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,278 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,280 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,280 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,281 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,283 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,283 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,283 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,283 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,284 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,286 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,305 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,305 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,305 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,306 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,320 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,325 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,326 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,326 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,326 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:56,331 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:15:56,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 02:15:56,362 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:15:56,362 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:15:56,363 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:15:56,363 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:15:56,363 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:15:56,363 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:15:56,363 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:15:56,363 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:15:56,377 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:15:56,378 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 89 transitions, 198 flow [2020-10-22 02:15:56,380 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 89 transitions, 198 flow [2020-10-22 02:15:56,382 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 89 transitions, 198 flow [2020-10-22 02:15:56,441 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-10-22 02:15:56,442 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:15:56,451 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-22 02:15:56,457 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-22 02:15:58,116 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-22 02:15:58,358 INFO L131 LiptonReduction]: Checked pairs total: 4334 [2020-10-22 02:15:58,358 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-10-22 02:15:58,375 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-22 02:15:58,423 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-22 02:15:58,426 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-22 02:15:58,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:15:58,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:58,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:58,437 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:58,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:58,442 INFO L82 PathProgramCache]: Analyzing trace with hash -782796091, now seen corresponding path program 1 times [2020-10-22 02:15:58,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:58,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217804107] [2020-10-22 02:15:58,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:58,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217804107] [2020-10-22 02:15:58,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:58,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:15:58,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1425306887] [2020-10-22 02:15:58,671 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:58,674 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:58,689 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 02:15:58,690 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:58,694 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:58,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:15:58,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:58,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:15:58,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:15:58,708 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-22 02:15:58,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:58,788 INFO L93 Difference]: Finished difference Result 682 states and 2336 transitions. [2020-10-22 02:15:58,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:15:58,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 02:15:58,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:58,826 INFO L225 Difference]: With dead ends: 682 [2020-10-22 02:15:58,826 INFO L226 Difference]: Without dead ends: 538 [2020-10-22 02:15:58,827 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 [2020-10-22 02:15:58,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-22 02:15:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2020-10-22 02:15:58,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-22 02:15:58,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1784 transitions. [2020-10-22 02:15:58,929 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1784 transitions. Word has length 10 [2020-10-22 02:15:58,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:58,930 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 1784 transitions. [2020-10-22 02:15:58,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:15:58,930 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1784 transitions. [2020-10-22 02:15:58,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:15:58,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:58,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:58,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:15:58,933 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:58,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:58,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1503123814, now seen corresponding path program 1 times [2020-10-22 02:15:58,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:58,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188445021] [2020-10-22 02:15:58,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:59,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188445021] [2020-10-22 02:15:59,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:59,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:15:59,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1272682525] [2020-10-22 02:15:59,027 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:59,032 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:59,036 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 21 transitions. [2020-10-22 02:15:59,036 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:59,103 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:59,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:15:59,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:59,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:15:59,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:15:59,106 INFO L87 Difference]: Start difference. First operand 538 states and 1784 transitions. Second operand 3 states. [2020-10-22 02:15:59,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:59,120 INFO L93 Difference]: Finished difference Result 508 states and 1665 transitions. [2020-10-22 02:15:59,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:15:59,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-22 02:15:59,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:59,126 INFO L225 Difference]: With dead ends: 508 [2020-10-22 02:15:59,126 INFO L226 Difference]: Without dead ends: 508 [2020-10-22 02:15:59,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:15:59,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-22 02:15:59,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-10-22 02:15:59,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-10-22 02:15:59,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 1665 transitions. [2020-10-22 02:15:59,159 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 1665 transitions. Word has length 11 [2020-10-22 02:15:59,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:59,159 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 1665 transitions. [2020-10-22 02:15:59,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:15:59,159 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 1665 transitions. [2020-10-22 02:15:59,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:15:59,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:59,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:59,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:15:59,162 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:59,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:59,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1088809907, now seen corresponding path program 1 times [2020-10-22 02:15:59,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:59,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129922281] [2020-10-22 02:15:59,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:59,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129922281] [2020-10-22 02:15:59,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:59,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:15:59,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1207560658] [2020-10-22 02:15:59,272 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:59,274 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:59,276 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-10-22 02:15:59,276 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:59,336 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:59,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:15:59,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:59,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:15:59,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:15:59,337 INFO L87 Difference]: Start difference. First operand 508 states and 1665 transitions. Second operand 4 states. [2020-10-22 02:15:59,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:59,369 INFO L93 Difference]: Finished difference Result 748 states and 2407 transitions. [2020-10-22 02:15:59,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:15:59,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-22 02:15:59,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:59,373 INFO L225 Difference]: With dead ends: 748 [2020-10-22 02:15:59,374 INFO L226 Difference]: Without dead ends: 460 [2020-10-22 02:15:59,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:15:59,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-22 02:15:59,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2020-10-22 02:15:59,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-10-22 02:15:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1467 transitions. [2020-10-22 02:15:59,393 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1467 transitions. Word has length 12 [2020-10-22 02:15:59,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:59,394 INFO L481 AbstractCegarLoop]: Abstraction has 460 states and 1467 transitions. [2020-10-22 02:15:59,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:15:59,394 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1467 transitions. [2020-10-22 02:15:59,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:15:59,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:59,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:59,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:15:59,397 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:59,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:59,397 INFO L82 PathProgramCache]: Analyzing trace with hash -647802977, now seen corresponding path program 2 times [2020-10-22 02:15:59,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:59,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801812884] [2020-10-22 02:15:59,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:59,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801812884] [2020-10-22 02:15:59,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:59,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:15:59,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [161006778] [2020-10-22 02:15:59,473 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:59,475 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:59,477 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-22 02:15:59,477 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:59,565 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:59,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:15:59,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:59,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:15:59,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:15:59,567 INFO L87 Difference]: Start difference. First operand 460 states and 1467 transitions. Second operand 3 states. [2020-10-22 02:15:59,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:59,576 INFO L93 Difference]: Finished difference Result 442 states and 1398 transitions. [2020-10-22 02:15:59,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:15:59,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-22 02:15:59,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:59,580 INFO L225 Difference]: With dead ends: 442 [2020-10-22 02:15:59,580 INFO L226 Difference]: Without dead ends: 442 [2020-10-22 02:15:59,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:15:59,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-22 02:15:59,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-22 02:15:59,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-22 02:15:59,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1398 transitions. [2020-10-22 02:15:59,596 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1398 transitions. Word has length 12 [2020-10-22 02:15:59,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:59,596 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 1398 transitions. [2020-10-22 02:15:59,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:15:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1398 transitions. [2020-10-22 02:15:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 02:15:59,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:59,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:59,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:15:59,599 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:59,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:59,599 INFO L82 PathProgramCache]: Analyzing trace with hash -912860165, now seen corresponding path program 1 times [2020-10-22 02:15:59,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:59,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205871649] [2020-10-22 02:15:59,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:59,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205871649] [2020-10-22 02:15:59,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:59,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:15:59,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1684590263] [2020-10-22 02:15:59,636 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:59,672 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:59,676 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 47 transitions. [2020-10-22 02:15:59,676 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:59,757 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:59,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:15:59,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:59,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:15:59,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:15:59,758 INFO L87 Difference]: Start difference. First operand 442 states and 1398 transitions. Second operand 3 states. [2020-10-22 02:15:59,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:59,777 INFO L93 Difference]: Finished difference Result 596 states and 1797 transitions. [2020-10-22 02:15:59,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:15:59,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-22 02:15:59,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:59,782 INFO L225 Difference]: With dead ends: 596 [2020-10-22 02:15:59,782 INFO L226 Difference]: Without dead ends: 460 [2020-10-22 02:15:59,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:15:59,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-22 02:15:59,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 424. [2020-10-22 02:15:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-22 02:15:59,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 1261 transitions. [2020-10-22 02:15:59,797 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 1261 transitions. Word has length 13 [2020-10-22 02:15:59,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:59,798 INFO L481 AbstractCegarLoop]: Abstraction has 424 states and 1261 transitions. [2020-10-22 02:15:59,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:15:59,798 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 1261 transitions. [2020-10-22 02:15:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 02:15:59,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:59,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:59,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:15:59,800 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:59,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:59,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1787336884, now seen corresponding path program 1 times [2020-10-22 02:15:59,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:59,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868102190] [2020-10-22 02:15:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:59,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868102190] [2020-10-22 02:15:59,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:59,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:15:59,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1006108355] [2020-10-22 02:15:59,857 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:59,858 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:59,863 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 71 transitions. [2020-10-22 02:15:59,864 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:00,194 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:00,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:16:00,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:00,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:16:00,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:16:00,196 INFO L87 Difference]: Start difference. First operand 424 states and 1261 transitions. Second operand 4 states. [2020-10-22 02:16:00,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:00,216 INFO L93 Difference]: Finished difference Result 566 states and 1628 transitions. [2020-10-22 02:16:00,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:16:00,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-22 02:16:00,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:00,219 INFO L225 Difference]: With dead ends: 566 [2020-10-22 02:16:00,219 INFO L226 Difference]: Without dead ends: 278 [2020-10-22 02:16:00,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:16:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-22 02:16:00,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-10-22 02:16:00,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-22 02:16:00,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 791 transitions. [2020-10-22 02:16:00,230 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 791 transitions. Word has length 13 [2020-10-22 02:16:00,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:00,230 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 791 transitions. [2020-10-22 02:16:00,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:16:00,230 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 791 transitions. [2020-10-22 02:16:00,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:16:00,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:00,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:00,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:16:00,231 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:00,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:00,232 INFO L82 PathProgramCache]: Analyzing trace with hash 238144508, now seen corresponding path program 1 times [2020-10-22 02:16:00,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:00,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427904677] [2020-10-22 02:16:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:00,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:00,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427904677] [2020-10-22 02:16:00,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:00,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:16:00,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1706509231] [2020-10-22 02:16:00,291 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:00,293 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:00,297 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-10-22 02:16:00,297 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:00,324 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:16:00,352 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:16:00,458 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:16:00,535 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:16:00,576 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10384#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-22 02:16:00,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:16:00,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:00,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:16:00,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:16:00,577 INFO L87 Difference]: Start difference. First operand 278 states and 791 transitions. Second operand 5 states. [2020-10-22 02:16:00,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:00,647 INFO L93 Difference]: Finished difference Result 292 states and 753 transitions. [2020-10-22 02:16:00,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:16:00,648 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:16:00,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:00,649 INFO L225 Difference]: With dead ends: 292 [2020-10-22 02:16:00,650 INFO L226 Difference]: Without dead ends: 195 [2020-10-22 02:16:00,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:16:00,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-10-22 02:16:00,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-10-22 02:16:00,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-22 02:16:00,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 465 transitions. [2020-10-22 02:16:00,657 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 465 transitions. Word has length 14 [2020-10-22 02:16:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:00,657 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 465 transitions. [2020-10-22 02:16:00,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:16:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 465 transitions. [2020-10-22 02:16:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:16:00,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:00,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:00,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:16:00,659 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:00,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:00,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1046603743, now seen corresponding path program 1 times [2020-10-22 02:16:00,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:00,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494765988] [2020-10-22 02:16:00,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:00,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494765988] [2020-10-22 02:16:00,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:00,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:16:00,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [398511525] [2020-10-22 02:16:00,719 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:00,721 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:00,728 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-10-22 02:16:00,728 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:01,006 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [11077#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:16:01,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:16:01,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:01,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:16:01,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:16:01,007 INFO L87 Difference]: Start difference. First operand 195 states and 465 transitions. Second operand 7 states. [2020-10-22 02:16:01,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:01,075 INFO L93 Difference]: Finished difference Result 189 states and 428 transitions. [2020-10-22 02:16:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:16:01,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-22 02:16:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:01,077 INFO L225 Difference]: With dead ends: 189 [2020-10-22 02:16:01,077 INFO L226 Difference]: Without dead ends: 150 [2020-10-22 02:16:01,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:16:01,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-22 02:16:01,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-22 02:16:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-22 02:16:01,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 339 transitions. [2020-10-22 02:16:01,082 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 339 transitions. Word has length 16 [2020-10-22 02:16:01,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:01,083 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 339 transitions. [2020-10-22 02:16:01,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:16:01,083 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 339 transitions. [2020-10-22 02:16:01,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:16:01,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:01,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:01,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:16:01,084 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:01,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:01,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1569359463, now seen corresponding path program 1 times [2020-10-22 02:16:01,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:01,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603390955] [2020-10-22 02:16:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:01,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603390955] [2020-10-22 02:16:01,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:01,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:16:01,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [564911293] [2020-10-22 02:16:01,117 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:01,119 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:01,124 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 48 transitions. [2020-10-22 02:16:01,124 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:01,179 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:01,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:16:01,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:01,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:16:01,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:16:01,180 INFO L87 Difference]: Start difference. First operand 150 states and 339 transitions. Second operand 4 states. [2020-10-22 02:16:01,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:01,199 INFO L93 Difference]: Finished difference Result 182 states and 403 transitions. [2020-10-22 02:16:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:16:01,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-22 02:16:01,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:01,201 INFO L225 Difference]: With dead ends: 182 [2020-10-22 02:16:01,201 INFO L226 Difference]: Without dead ends: 139 [2020-10-22 02:16:01,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:16:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-22 02:16:01,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2020-10-22 02:16:01,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-22 02:16:01,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 301 transitions. [2020-10-22 02:16:01,206 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 301 transitions. Word has length 18 [2020-10-22 02:16:01,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:01,206 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 301 transitions. [2020-10-22 02:16:01,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:16:01,207 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 301 transitions. [2020-10-22 02:16:01,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:16:01,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:01,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:01,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 02:16:01,208 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:01,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:01,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1563997083, now seen corresponding path program 2 times [2020-10-22 02:16:01,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:01,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864791549] [2020-10-22 02:16:01,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:01,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:01,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864791549] [2020-10-22 02:16:01,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:01,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:16:01,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1900977096] [2020-10-22 02:16:01,269 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:01,271 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:01,277 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 66 transitions. [2020-10-22 02:16:01,277 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:01,349 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [12039#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:16:01,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-22 02:16:01,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:01,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-22 02:16:01,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:16:01,351 INFO L87 Difference]: Start difference. First operand 137 states and 301 transitions. Second operand 8 states. [2020-10-22 02:16:01,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:01,429 INFO L93 Difference]: Finished difference Result 132 states and 289 transitions. [2020-10-22 02:16:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:16:01,430 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-22 02:16:01,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:01,431 INFO L225 Difference]: With dead ends: 132 [2020-10-22 02:16:01,431 INFO L226 Difference]: Without dead ends: 51 [2020-10-22 02:16:01,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-22 02:16:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-22 02:16:01,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-22 02:16:01,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-22 02:16:01,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-10-22 02:16:01,433 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 18 [2020-10-22 02:16:01,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:01,434 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-10-22 02:16:01,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-22 02:16:01,434 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-10-22 02:16:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-22 02:16:01,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:01,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:01,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 02:16:01,435 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:01,436 INFO L82 PathProgramCache]: Analyzing trace with hash -299924038, now seen corresponding path program 1 times [2020-10-22 02:16:01,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:01,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035635342] [2020-10-22 02:16:01,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:01,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:01,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035635342] [2020-10-22 02:16:01,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:01,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:16:01,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [859969512] [2020-10-22 02:16:01,467 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:01,469 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:01,477 INFO L252 McrAutomatonBuilder]: Finished intersection with 52 states and 80 transitions. [2020-10-22 02:16:01,478 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:01,496 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:01,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:16:01,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:01,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:16:01,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:01,497 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-10-22 02:16:01,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:01,503 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-10-22 02:16:01,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:16:01,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-22 02:16:01,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:01,504 INFO L225 Difference]: With dead ends: 50 [2020-10-22 02:16:01,504 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:16:01,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:01,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:16:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:16:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:16:01,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:16:01,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-22 02:16:01,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:01,506 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:16:01,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:16:01,506 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:16:01,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:16:01,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-22 02:16:01,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:16:01 BasicIcfg [2020-10-22 02:16:01,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:16:01,511 INFO L168 Benchmark]: Toolchain (without parser) took 6558.83 ms. Allocated memory was 146.8 MB in the beginning and 285.7 MB in the end (delta: 138.9 MB). Free memory was 100.1 MB in the beginning and 133.3 MB in the end (delta: -33.2 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:01,512 INFO L168 Benchmark]: CDTParser took 3.04 ms. Allocated memory is still 146.8 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-22 02:16:01,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.58 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 99.3 MB in the beginning and 157.6 MB in the end (delta: -58.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:01,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.20 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 155.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:01,514 INFO L168 Benchmark]: Boogie Preprocessor took 28.58 ms. Allocated memory is still 202.9 MB. Free memory was 154.7 MB in the beginning and 153.8 MB in the end (delta: 966.7 kB). Peak memory consumption was 966.7 kB. Max. memory is 7.1 GB. [2020-10-22 02:16:01,515 INFO L168 Benchmark]: RCFGBuilder took 468.00 ms. Allocated memory is still 202.9 MB. Free memory was 153.8 MB in the beginning and 127.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:01,516 INFO L168 Benchmark]: TraceAbstraction took 5290.69 ms. Allocated memory was 202.9 MB in the beginning and 285.7 MB in the end (delta: 82.8 MB). Free memory was 127.9 MB in the beginning and 133.3 MB in the end (delta: -5.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:01,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.04 ms. Allocated memory is still 146.8 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.58 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 99.3 MB in the beginning and 157.6 MB in the end (delta: -58.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.20 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 155.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.58 ms. Allocated memory is still 202.9 MB. Free memory was 154.7 MB in the beginning and 153.8 MB in the end (delta: 966.7 kB). Peak memory consumption was 966.7 kB. Max. memory is 7.1 GB. * RCFGBuilder took 468.00 ms. Allocated memory is still 202.9 MB. Free memory was 153.8 MB in the beginning and 127.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5290.69 ms. Allocated memory was 202.9 MB in the beginning and 285.7 MB in the end (delta: 82.8 MB). Free memory was 127.9 MB in the beginning and 133.3 MB in the end (delta: -5.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1132 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 99 PlacesBefore, 38 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 4334 MoverChecksTotal - PositiveResult [Line: 17]: 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 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 240 SDtfs, 181 SDslu, 323 SDs, 0 SdLazy, 178 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...