/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:25:27,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:25:27,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:25:27,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:25:27,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:25:27,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:25:27,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:25:27,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:25:27,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:25:27,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:25:27,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:25:27,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:25:27,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:25:27,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:25:27,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:25:27,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:25:27,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:25:27,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:25:27,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:25:27,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:25:27,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:25:27,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:25:27,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:25:27,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:25:27,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:25:27,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:25:27,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:25:27,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:25:27,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:25:27,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:25:27,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:25:27,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:25:27,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:25:27,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:25:27,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:25:27,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:25:27,440 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-MCR.epf [2019-12-27 22:25:27,473 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:25:27,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:25:27,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:25:27,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:25:27,477 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:25:27,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:25:27,478 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:25:27,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:25:27,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:25:27,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:25:27,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:25:27,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:25:27,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:25:27,479 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:25:27,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:25:27,479 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:25:27,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:25:27,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:25:27,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:25:27,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:25:27,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:25:27,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:25:27,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:25:27,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:25:27,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:25:27,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:25:27,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:25:27,484 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:25:27,484 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:25:27,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:25:27,484 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:25:27,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:25:27,753 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:25:27,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:25:27,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:25:27,775 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:25:27,775 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:25:27,776 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2019-12-27 22:25:27,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8337717ae/a8450d65ad1145ed8a3f1198e60a7b96/FLAG451f20baa [2019-12-27 22:25:28,403 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:25:28,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2019-12-27 22:25:28,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8337717ae/a8450d65ad1145ed8a3f1198e60a7b96/FLAG451f20baa [2019-12-27 22:25:28,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8337717ae/a8450d65ad1145ed8a3f1198e60a7b96 [2019-12-27 22:25:28,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:25:28,669 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:25:28,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:25:28,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:25:28,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:25:28,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:25:28" (1/1) ... [2019-12-27 22:25:28,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f11b977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:28, skipping insertion in model container [2019-12-27 22:25:28,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:25:28" (1/1) ... [2019-12-27 22:25:28,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:25:28,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:25:29,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:25:29,260 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:25:29,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:25:29,434 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:25:29,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29 WrapperNode [2019-12-27 22:25:29,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:25:29,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:25:29,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:25:29,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:25:29,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (1/1) ... [2019-12-27 22:25:29,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (1/1) ... [2019-12-27 22:25:29,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:25:29,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:25:29,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:25:29,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:25:29,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (1/1) ... [2019-12-27 22:25:29,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (1/1) ... [2019-12-27 22:25:29,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (1/1) ... [2019-12-27 22:25:29,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (1/1) ... [2019-12-27 22:25:29,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (1/1) ... [2019-12-27 22:25:29,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (1/1) ... [2019-12-27 22:25:29,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (1/1) ... [2019-12-27 22:25:29,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:25:29,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:25:29,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:25:29,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:25:29,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (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 [2019-12-27 22:25:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:25:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:25:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:25:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:25:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:25:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:25:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:25:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:25:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:25:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:25:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:25:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:25:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:25:29,594 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 22:25:29,942 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:25:29,942 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:25:29,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:25:29 BoogieIcfgContainer [2019-12-27 22:25:29,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:25:29,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:25:29,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:25:29,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:25:29,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:25:28" (1/3) ... [2019-12-27 22:25:29,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6948f048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:25:29, skipping insertion in model container [2019-12-27 22:25:29,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:25:29" (2/3) ... [2019-12-27 22:25:29,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6948f048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:25:29, skipping insertion in model container [2019-12-27 22:25:29,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:25:29" (3/3) ... [2019-12-27 22:25:29,952 INFO L109 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc.i [2019-12-27 22:25:29,962 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:25:29,963 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:25:29,970 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:25:29,971 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:25:30,000 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,000 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,000 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,001 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,001 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,002 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,002 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,002 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,003 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,004 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,004 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,004 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,005 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,005 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,006 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,006 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,006 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,006 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,012 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,012 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,012 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,013 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,019 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,019 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,019 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,019 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,022 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,022 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,023 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,023 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:25:30,038 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:25:30,055 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:25:30,055 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:25:30,055 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:25:30,056 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:25:30,056 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:25:30,056 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:25:30,056 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:25:30,056 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:25:30,070 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-27 22:25:30,073 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 22:25:30,117 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 22:25:30,118 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:25:30,124 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:25:30,126 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 22:25:30,145 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 22:25:30,145 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:25:30,146 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:25:30,148 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:25:30,150 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:25:31,439 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 22:25:31,554 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 22:25:31,554 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 22:25:31,557 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:25:31,567 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:25:31,569 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:25:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:25:31,575 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:25:31,576 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:25:31,576 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:25:31,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:25:31,581 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-27 22:25:31,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:25:31,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392447197] [2019-12-27 22:25:31,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:25:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:25:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:25:31,839 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392447197] [2019-12-27 22:25:31,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:25:31,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:25:31,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1863211615] [2019-12-27 22:25:31,843 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:25:31,853 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:25:31,869 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:25:31,869 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:25:31,873 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:25:31,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:25:31,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:25:31,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:25:31,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:25:31,893 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:25:31,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:25:31,920 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 22:25:31,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:25:31,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:25:31,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:25:31,942 INFO L225 Difference]: With dead ends: 42 [2019-12-27 22:25:31,942 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:25:31,951 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 [2019-12-27 22:25:31,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:25:31,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:25:31,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:25:31,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:25:31,995 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 22:25:31,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:25:31,996 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:25:31,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:25:31,997 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:25:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:25:31,997 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:25:31,998 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:25:31,998 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:25:31,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:25:31,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1392638966, now seen corresponding path program 1 times [2019-12-27 22:25:31,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:25:31,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914092001] [2019-12-27 22:25:31,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:25:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:25:32,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:25:32,096 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914092001] [2019-12-27 22:25:32,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:25:32,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:25:32,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1001111611] [2019-12-27 22:25:32,097 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:25:32,099 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:25:32,102 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 22:25:32,103 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:25:32,104 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:25:32,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:25:32,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:25:32,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:25:32,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:25:32,106 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 22:25:32,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:25:32,139 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 22:25:32,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:25:32,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 22:25:32,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:25:32,141 INFO L225 Difference]: With dead ends: 36 [2019-12-27 22:25:32,142 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 22:25:32,142 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 [2019-12-27 22:25:32,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 22:25:32,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 22:25:32,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 22:25:32,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 22:25:32,149 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 22:25:32,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:25:32,149 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 22:25:32,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:25:32,149 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 22:25:32,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:25:32,152 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:25:32,152 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:25:32,153 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:25:32,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:25:32,153 INFO L82 PathProgramCache]: Analyzing trace with hash -794773568, now seen corresponding path program 1 times [2019-12-27 22:25:32,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:25:32,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265032119] [2019-12-27 22:25:32,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:25:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:25:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:25:32,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265032119] [2019-12-27 22:25:32,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:25:32,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:25:32,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1197080477] [2019-12-27 22:25:32,259 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:25:32,260 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:25:32,263 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 22:25:32,263 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:25:32,263 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:25:32,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:25:32,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:25:32,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:25:32,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:25:32,264 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-27 22:25:32,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:25:32,284 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 22:25:32,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:25:32,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 22:25:32,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:25:32,285 INFO L225 Difference]: With dead ends: 25 [2019-12-27 22:25:32,285 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 22:25:32,286 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 [2019-12-27 22:25:32,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 22:25:32,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 22:25:32,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 22:25:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 22:25:32,289 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 22:25:32,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:25:32,289 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 22:25:32,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:25:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 22:25:32,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:25:32,290 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:25:32,290 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:25:32,290 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:25:32,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:25:32,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 1 times [2019-12-27 22:25:32,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:25:32,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313111261] [2019-12-27 22:25:32,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:25:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:25:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:25:32,344 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313111261] [2019-12-27 22:25:32,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:25:32,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:25:32,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1581448289] [2019-12-27 22:25:32,345 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:25:32,346 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:25:32,348 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:25:32,348 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:25:32,382 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 22:25:32,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:25:32,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:25:32,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:25:32,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:25:32,384 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states. [2019-12-27 22:25:32,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:25:32,406 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 22:25:32,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:25:32,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 22:25:32,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:25:32,406 INFO L225 Difference]: With dead ends: 16 [2019-12-27 22:25:32,407 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:25:32,407 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:25:32,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:25:32,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:25:32,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:25:32,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:25:32,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:25:32,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:25:32,408 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:25:32,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:25:32,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:25:32,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:25:32,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:25:32 BasicIcfg [2019-12-27 22:25:32,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:25:32,415 INFO L168 Benchmark]: Toolchain (without parser) took 3745.98 ms. Allocated memory was 146.8 MB in the beginning and 245.4 MB in the end (delta: 98.6 MB). Free memory was 103.3 MB in the beginning and 146.1 MB in the end (delta: -42.7 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2019-12-27 22:25:32,416 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 22:25:32,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.97 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 103.1 MB in the beginning and 159.4 MB in the end (delta: -56.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-27 22:25:32,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.21 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:25:32,419 INFO L168 Benchmark]: Boogie Preprocessor took 24.97 ms. Allocated memory is still 204.5 MB. Free memory was 157.4 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:25:32,419 INFO L168 Benchmark]: RCFGBuilder took 423.34 ms. Allocated memory is still 204.5 MB. Free memory was 156.1 MB in the beginning and 135.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-27 22:25:32,420 INFO L168 Benchmark]: TraceAbstraction took 2467.78 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 134.7 MB in the beginning and 146.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:25:32,425 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.97 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 103.1 MB in the beginning and 159.4 MB in the end (delta: -56.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.21 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.97 ms. Allocated memory is still 204.5 MB. Free memory was 157.4 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.34 ms. Allocated memory is still 204.5 MB. Free memory was 156.1 MB in the beginning and 135.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2467.78 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 134.7 MB in the beginning and 146.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 228 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 47 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 24 SDslu, 40 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 762 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...