/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 22:30:17,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 22:30:17,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 22:30:17,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 22:30:17,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 22:30:17,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 22:30:17,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 22:30:17,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 22:30:17,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 22:30:17,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 22:30:17,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 22:30:17,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 22:30:17,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 22:30:17,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 22:30:17,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 22:30:17,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 22:30:17,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 22:30:17,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 22:30:17,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 22:30:17,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 22:30:17,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 22:30:17,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 22:30:17,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 22:30:17,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 22:30:17,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 22:30:17,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 22:30:17,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 22:30:17,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 22:30:17,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 22:30:17,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 22:30:17,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 22:30:17,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 22:30:17,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 22:30:17,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 22:30:17,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 22:30:17,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 22:30:17,665 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-18 22:30:17,686 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 22:30:17,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 22:30:17,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 22:30:17,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 22:30:17,688 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 22:30:17,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 22:30:17,689 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 22:30:17,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 22:30:17,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 22:30:17,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 22:30:17,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 22:30:17,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 22:30:17,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 22:30:17,690 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 22:30:17,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 22:30:17,690 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 22:30:17,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 22:30:17,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 22:30:17,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 22:30:17,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 22:30:17,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 22:30:17,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:30:17,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 22:30:17,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 22:30:17,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 22:30:17,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 22:30:17,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 22:30:17,693 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 22:30:17,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 22:30:17,693 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 22:30:17,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 22:30:17,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 22:30:17,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 22:30:17,991 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 22:30:17,991 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 22:30:17,992 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2019-12-18 22:30:18,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c174a56e/29a3746f665b4a289b293abd4638c283/FLAG9cabb55bc [2019-12-18 22:30:18,603 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 22:30:18,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2019-12-18 22:30:18,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c174a56e/29a3746f665b4a289b293abd4638c283/FLAG9cabb55bc [2019-12-18 22:30:18,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c174a56e/29a3746f665b4a289b293abd4638c283 [2019-12-18 22:30:18,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 22:30:18,879 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 22:30:18,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 22:30:18,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 22:30:18,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 22:30:18,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:30:18" (1/1) ... [2019-12-18 22:30:18,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2075a967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:18, skipping insertion in model container [2019-12-18 22:30:18,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:30:18" (1/1) ... [2019-12-18 22:30:18,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 22:30:18,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 22:30:19,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:30:19,456 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 22:30:19,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:30:19,590 INFO L208 MainTranslator]: Completed translation [2019-12-18 22:30:19,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19 WrapperNode [2019-12-18 22:30:19,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 22:30:19,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 22:30:19,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 22:30:19,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 22:30:19,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (1/1) ... [2019-12-18 22:30:19,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (1/1) ... [2019-12-18 22:30:19,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 22:30:19,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 22:30:19,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 22:30:19,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 22:30:19,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (1/1) ... [2019-12-18 22:30:19,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (1/1) ... [2019-12-18 22:30:19,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (1/1) ... [2019-12-18 22:30:19,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (1/1) ... [2019-12-18 22:30:19,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (1/1) ... [2019-12-18 22:30:19,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (1/1) ... [2019-12-18 22:30:19,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (1/1) ... [2019-12-18 22:30:19,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 22:30:19,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 22:30:19,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 22:30:19,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 22:30:19,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (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 [2019-12-18 22:30:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 22:30:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 22:30:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 22:30:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 22:30:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 22:30:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 22:30:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 22:30:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 22:30:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 22:30:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 22:30:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 22:30:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 22:30:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 22:30:19,735 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 22:30:20,098 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 22:30:20,099 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 22:30:20,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:30:20 BoogieIcfgContainer [2019-12-18 22:30:20,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 22:30:20,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 22:30:20,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 22:30:20,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 22:30:20,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:30:18" (1/3) ... [2019-12-18 22:30:20,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1c4f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:30:20, skipping insertion in model container [2019-12-18 22:30:20,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:19" (2/3) ... [2019-12-18 22:30:20,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1c4f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:30:20, skipping insertion in model container [2019-12-18 22:30:20,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:30:20" (3/3) ... [2019-12-18 22:30:20,110 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2019-12-18 22:30:20,121 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 22:30:20,121 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 22:30:20,132 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 22:30:20,133 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 22:30:20,164 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,164 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,164 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,165 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,165 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,166 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,166 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,166 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,167 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,167 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,167 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,168 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,168 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,168 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,169 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,169 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,169 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,169 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,173 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,173 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,173 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,174 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,179 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,179 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,180 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,180 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,183 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,184 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,184 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,184 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:20,206 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 22:30:20,225 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 22:30:20,225 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 22:30:20,225 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 22:30:20,225 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 22:30:20,226 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 22:30:20,226 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 22:30:20,226 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 22:30:20,226 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 22:30:20,240 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 22:30:20,242 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 22:30:20,297 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 22:30:20,298 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:30:20,308 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:30:20,311 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 22:30:20,327 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 22:30:20,328 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:30:20,329 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:30:20,330 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 22:30:20,331 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 22:30:21,660 INFO L206 etLargeBlockEncoding]: Checked pairs total: 444 [2019-12-18 22:30:21,661 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 22:30:21,665 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 22:30:21,680 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 22:30:21,682 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 22:30:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 22:30:21,690 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:30:21,691 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:30:21,691 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:30:21,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:30:21,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1049428584, now seen corresponding path program 1 times [2019-12-18 22:30:21,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:30:21,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772849224] [2019-12-18 22:30:21,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:30:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:30:21,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:30:21,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772849224] [2019-12-18 22:30:21,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:30:21,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:30:21,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362150163] [2019-12-18 22:30:21,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:30:21,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:30:21,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:30:22,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:30:22,003 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 22:30:22,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:30:22,076 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-18 22:30:22,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:30:22,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 22:30:22,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:30:22,104 INFO L225 Difference]: With dead ends: 44 [2019-12-18 22:30:22,104 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 22:30:22,106 INFO L631 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 [2019-12-18 22:30:22,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 22:30:22,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 22:30:22,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 22:30:22,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 22:30:22,142 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 22:30:22,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:30:22,143 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 22:30:22,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:30:22,143 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 22:30:22,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:30:22,144 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:30:22,144 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:30:22,144 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:30:22,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:30:22,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452116, now seen corresponding path program 1 times [2019-12-18 22:30:22,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:30:22,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297395438] [2019-12-18 22:30:22,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:30:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:30:22,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:30:22,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297395438] [2019-12-18 22:30:22,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:30:22,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:30:22,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239533772] [2019-12-18 22:30:22,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:30:22,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:30:22,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:30:22,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:30:22,260 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 22:30:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:30:22,268 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-18 22:30:22,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:30:22,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 22:30:22,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:30:22,269 INFO L225 Difference]: With dead ends: 34 [2019-12-18 22:30:22,270 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 22:30:22,270 INFO L631 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 [2019-12-18 22:30:22,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 22:30:22,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 22:30:22,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 22:30:22,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 22:30:22,277 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-18 22:30:22,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:30:22,277 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 22:30:22,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:30:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 22:30:22,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:30:22,278 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:30:22,279 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:30:22,279 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:30:22,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:30:22,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452178, now seen corresponding path program 1 times [2019-12-18 22:30:22,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:30:22,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966285695] [2019-12-18 22:30:22,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:30:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:30:22,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:30:22,327 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966285695] [2019-12-18 22:30:22,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:30:22,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:30:22,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496546622] [2019-12-18 22:30:22,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:30:22,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:30:22,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:30:22,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:30:22,329 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 22:30:22,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:30:22,354 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 22:30:22,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:30:22,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 22:30:22,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:30:22,356 INFO L225 Difference]: With dead ends: 36 [2019-12-18 22:30:22,356 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 22:30:22,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:30:22,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 22:30:22,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 22:30:22,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 22:30:22,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 22:30:22,361 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 22:30:22,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:30:22,361 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 22:30:22,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:30:22,361 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 22:30:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:30:22,362 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:30:22,362 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:30:22,362 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:30:22,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:30:22,363 INFO L82 PathProgramCache]: Analyzing trace with hash 816442522, now seen corresponding path program 1 times [2019-12-18 22:30:22,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:30:22,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985710549] [2019-12-18 22:30:22,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:30:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:30:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:30:22,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985710549] [2019-12-18 22:30:22,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:30:22,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:30:22,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100451735] [2019-12-18 22:30:22,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:30:22,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:30:22,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:30:22,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:30:22,423 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2019-12-18 22:30:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:30:22,456 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-18 22:30:22,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:30:22,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 22:30:22,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:30:22,457 INFO L225 Difference]: With dead ends: 33 [2019-12-18 22:30:22,458 INFO L226 Difference]: Without dead ends: 21 [2019-12-18 22:30:22,458 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:30:22,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-18 22:30:22,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-18 22:30:22,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-18 22:30:22,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-18 22:30:22,463 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-18 22:30:22,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:30:22,464 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-18 22:30:22,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:30:22,464 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-18 22:30:22,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:30:22,464 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:30:22,465 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:30:22,466 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:30:22,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:30:22,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1244284059, now seen corresponding path program 1 times [2019-12-18 22:30:22,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:30:22,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238912941] [2019-12-18 22:30:22,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:30:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:30:22,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:30:22,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238912941] [2019-12-18 22:30:22,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:30:22,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:30:22,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277913222] [2019-12-18 22:30:22,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:30:22,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:30:22,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:30:22,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:30:22,536 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 4 states. [2019-12-18 22:30:22,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:30:22,553 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-18 22:30:22,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:30:22,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:30:22,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:30:22,553 INFO L225 Difference]: With dead ends: 20 [2019-12-18 22:30:22,554 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 22:30:22,554 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:30:22,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 22:30:22,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 22:30:22,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 22:30:22,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 22:30:22,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 22:30:22,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:30:22,555 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 22:30:22,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:30:22,556 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 22:30:22,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 22:30:22,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 10:30:22 BasicIcfg [2019-12-18 22:30:22,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 22:30:22,564 INFO L168 Benchmark]: Toolchain (without parser) took 3684.34 ms. Allocated memory was 141.6 MB in the beginning and 247.5 MB in the end (delta: 105.9 MB). Free memory was 101.2 MB in the beginning and 178.9 MB in the end (delta: -77.7 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-12-18 22:30:22,565 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.6 MB. Free memory was 120.9 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 22:30:22,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.68 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 160.5 MB in the end (delta: -59.7 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-18 22:30:22,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.40 ms. Allocated memory is still 204.5 MB. Free memory was 160.5 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 22:30:22,568 INFO L168 Benchmark]: Boogie Preprocessor took 27.41 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 22:30:22,568 INFO L168 Benchmark]: RCFGBuilder took 430.37 ms. Allocated memory is still 204.5 MB. Free memory was 157.2 MB in the beginning and 137.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-18 22:30:22,569 INFO L168 Benchmark]: TraceAbstraction took 2459.20 ms. Allocated memory was 204.5 MB in the beginning and 247.5 MB in the end (delta: 43.0 MB). Free memory was 136.3 MB in the beginning and 178.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 409.6 kB. Max. memory is 7.1 GB. [2019-12-18 22:30:22,574 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.6 MB. Free memory was 120.9 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 709.68 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 160.5 MB in the end (delta: -59.7 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.40 ms. Allocated memory is still 204.5 MB. Free memory was 160.5 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.41 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 430.37 ms. Allocated memory is still 204.5 MB. Free memory was 157.2 MB in the beginning and 137.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2459.20 ms. Allocated memory was 204.5 MB in the beginning and 247.5 MB in the end (delta: 43.0 MB). Free memory was 136.3 MB in the beginning and 178.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 409.6 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 219 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 444 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...