/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:02:25,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:02:25,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:02:25,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:02:25,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:02:25,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:02:25,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:02:25,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:02:25,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:02:25,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:02:25,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:02:25,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:02:25,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:02:25,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:02:25,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:02:25,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:02:25,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:02:25,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:02:25,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:02:25,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:02:25,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:02:25,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:02:25,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:02:25,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:02:25,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:02:25,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:02:25,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:02:25,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:02:25,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:02:25,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:02:25,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:02:26,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:02:26,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:02:26,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:02:26,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:02:26,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:02:26,003 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-SemanticLbe-MCR.epf [2019-12-27 18:02:26,019 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:02:26,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:02:26,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:02:26,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:02:26,021 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:02:26,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:02:26,021 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:02:26,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:02:26,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:02:26,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:02:26,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:02:26,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:02:26,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:02:26,022 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:02:26,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:02:26,023 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:02:26,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:02:26,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:02:26,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:02:26,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:02:26,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:02:26,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:02:26,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:02:26,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:02:26,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:02:26,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:02:26,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:02:26,025 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:02:26,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:02:26,026 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:02:26,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:02:26,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:02:26,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:02:26,372 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:02:26,374 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:02:26,374 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:02:26,376 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2019-12-27 18:02:26,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8920309ac/2cf5946899784939a044dcd105c63fbd/FLAGd263849d7 [2019-12-27 18:02:26,966 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:02:26,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2019-12-27 18:02:26,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8920309ac/2cf5946899784939a044dcd105c63fbd/FLAGd263849d7 [2019-12-27 18:02:27,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8920309ac/2cf5946899784939a044dcd105c63fbd [2019-12-27 18:02:27,285 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:02:27,286 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:02:27,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:02:27,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:02:27,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:02:27,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:27,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a18d434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27, skipping insertion in model container [2019-12-27 18:02:27,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:27,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:02:27,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:02:27,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:02:27,805 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:02:27,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:02:27,955 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:02:27,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27 WrapperNode [2019-12-27 18:02:27,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:02:27,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:02:27,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:02:27,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:02:27,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:27,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:28,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:02:28,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:02:28,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:02:28,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:02:28,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:28,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:28,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:28,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:28,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:28,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:28,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (1/1) ... [2019-12-27 18:02:28,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:02:28,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:02:28,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:02:28,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:02:28,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (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 18:02:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:02:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:02:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:02:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:02:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:02:28,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:02:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:02:28,105 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:02:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:02:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:02:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:02:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:02:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:02:28,108 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 18:02:28,452 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:02:28,453 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:02:28,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:02:28 BoogieIcfgContainer [2019-12-27 18:02:28,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:02:28,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:02:28,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:02:28,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:02:28,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:02:27" (1/3) ... [2019-12-27 18:02:28,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f377e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:02:28, skipping insertion in model container [2019-12-27 18:02:28,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:02:27" (2/3) ... [2019-12-27 18:02:28,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f377e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:02:28, skipping insertion in model container [2019-12-27 18:02:28,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:02:28" (3/3) ... [2019-12-27 18:02:28,462 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2019-12-27 18:02:28,470 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:02:28,471 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:02:28,477 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:02:28,478 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:02:28,515 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,518 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,518 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,519 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,519 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,519 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,520 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,520 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,520 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,522 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,524 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,524 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,525 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,525 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,525 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,525 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,526 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,526 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,530 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,530 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,531 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,531 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,536 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,537 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,537 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,538 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,540 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,540 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,541 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,541 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:02:28,566 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:02:28,587 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:02:28,588 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:02:28,588 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:02:28,588 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:02:28,588 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:02:28,588 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:02:28,589 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:02:28,589 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:02:28,603 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 18:02:28,605 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:02:28,648 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:02:28,649 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:02:28,657 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:02:28,661 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:02:28,689 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:02:28,689 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:02:28,690 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:02:28,692 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:02:28,693 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:02:30,224 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-27 18:02:30,225 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 18:02:30,229 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 18:02:30,239 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 18:02:30,242 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 18:02:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:02:30,249 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:02:30,250 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:02:30,250 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:02:30,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:02:30,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-27 18:02:30,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:02:30,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470043678] [2019-12-27 18:02:30,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:02:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:02:30,561 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 18:02:30,562 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470043678] [2019-12-27 18:02:30,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:02:30,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:02:30,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [473318351] [2019-12-27 18:02:30,566 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:02:30,578 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:02:30,597 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:02:30,598 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:02:30,601 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:02:30,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:02:30,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:02:30,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:02:30,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:02:30,620 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 18:02:30,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:02:30,652 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 18:02:30,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:02:30,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:02:30,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:02:30,664 INFO L225 Difference]: With dead ends: 50 [2019-12-27 18:02:30,664 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 18:02:30,666 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 18:02:30,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 18:02:30,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 18:02:30,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 18:02:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 18:02:30,705 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 18:02:30,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:02:30,706 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 18:02:30,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:02:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 18:02:30,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:02:30,707 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:02:30,707 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:02:30,707 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:02:30,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:02:30,708 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-27 18:02:30,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:02:30,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345315869] [2019-12-27 18:02:30,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:02:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:02:30,785 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 18:02:30,786 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345315869] [2019-12-27 18:02:30,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:02:30,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:02:30,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [604029144] [2019-12-27 18:02:30,786 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:02:30,789 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:02:30,792 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 18:02:30,795 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:02:30,795 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:02:30,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:02:30,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:02:30,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:02:30,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:02:30,798 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 18:02:30,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:02:30,833 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-27 18:02:30,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:02:30,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 18:02:30,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:02:30,835 INFO L225 Difference]: With dead ends: 39 [2019-12-27 18:02:30,835 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 18:02:30,836 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 18:02:30,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 18:02:30,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 18:02:30,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 18:02:30,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-27 18:02:30,845 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-27 18:02:30,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:02:30,846 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-27 18:02:30,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:02:30,847 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-27 18:02:30,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:02:30,848 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:02:30,849 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:02:30,849 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:02:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:02:30,850 INFO L82 PathProgramCache]: Analyzing trace with hash 400560283, now seen corresponding path program 1 times [2019-12-27 18:02:30,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:02:30,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946649673] [2019-12-27 18:02:30,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:02:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:02:30,922 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 18:02:30,922 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946649673] [2019-12-27 18:02:30,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:02:30,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:02:30,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1662292010] [2019-12-27 18:02:30,923 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:02:30,924 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:02:30,927 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 18:02:30,927 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:02:30,960 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 18:02:30,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:02:30,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:02:30,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:02:30,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:02:30,961 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 5 states. [2019-12-27 18:02:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:02:30,997 INFO L93 Difference]: Finished difference Result 40 states and 61 transitions. [2019-12-27 18:02:30,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:02:30,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 18:02:30,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:02:30,998 INFO L225 Difference]: With dead ends: 40 [2019-12-27 18:02:30,998 INFO L226 Difference]: Without dead ends: 30 [2019-12-27 18:02:30,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 18:02:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-27 18:02:31,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2019-12-27 18:02:31,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 18:02:31,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2019-12-27 18:02:31,003 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 10 [2019-12-27 18:02:31,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:02:31,004 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2019-12-27 18:02:31,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:02:31,004 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2019-12-27 18:02:31,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:02:31,005 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:02:31,005 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:02:31,005 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:02:31,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:02:31,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-27 18:02:31,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:02:31,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046384109] [2019-12-27 18:02:31,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:02:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:02:31,073 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 18:02:31,074 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046384109] [2019-12-27 18:02:31,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:02:31,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:02:31,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [473202445] [2019-12-27 18:02:31,075 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:02:31,076 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:02:31,077 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 18:02:31,078 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:02:31,078 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:02:31,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:02:31,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:02:31,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:02:31,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:02:31,079 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 4 states. [2019-12-27 18:02:31,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:02:31,096 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2019-12-27 18:02:31,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:02:31,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 18:02:31,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:02:31,097 INFO L225 Difference]: With dead ends: 29 [2019-12-27 18:02:31,097 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 18:02:31,098 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 18:02:31,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 18:02:31,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 18:02:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 18:02:31,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-27 18:02:31,101 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-27 18:02:31,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:02:31,101 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-27 18:02:31,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:02:31,101 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-27 18:02:31,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:02:31,102 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:02:31,102 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:02:31,102 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:02:31,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:02:31,103 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-27 18:02:31,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:02:31,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876629970] [2019-12-27 18:02:31,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:02:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:02:31,144 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 18:02:31,145 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876629970] [2019-12-27 18:02:31,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:02:31,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:02:31,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1584984254] [2019-12-27 18:02:31,146 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:02:31,147 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:02:31,149 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 18:02:31,149 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:02:31,150 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:02:31,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:02:31,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:02:31,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:02:31,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:02:31,151 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 3 states. [2019-12-27 18:02:31,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:02:31,159 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-27 18:02:31,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:02:31,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 18:02:31,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:02:31,160 INFO L225 Difference]: With dead ends: 20 [2019-12-27 18:02:31,160 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:02:31,160 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 [2019-12-27 18:02:31,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:02:31,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:02:31,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:02:31,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:02:31,161 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:02:31,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:02:31,161 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:02:31,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:02:31,161 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:02:31,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:02:31,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:02:31 BasicIcfg [2019-12-27 18:02:31,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:02:31,168 INFO L168 Benchmark]: Toolchain (without parser) took 3881.35 ms. Allocated memory was 138.9 MB in the beginning and 245.9 MB in the end (delta: 107.0 MB). Free memory was 101.7 MB in the beginning and 124.4 MB in the end (delta: -22.7 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:02:31,169 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 18:02:31,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.39 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 101.3 MB in the beginning and 161.2 MB in the end (delta: -59.9 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2019-12-27 18:02:31,171 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.48 ms. Allocated memory is still 203.9 MB. Free memory was 160.2 MB in the beginning and 158.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 18:02:31,172 INFO L168 Benchmark]: Boogie Preprocessor took 25.52 ms. Allocated memory is still 203.9 MB. Free memory was 158.4 MB in the beginning and 157.4 MB in the end (delta: 946.0 kB). Peak memory consumption was 946.0 kB. Max. memory is 7.1 GB. [2019-12-27 18:02:31,172 INFO L168 Benchmark]: RCFGBuilder took 423.68 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 136.2 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:02:31,173 INFO L168 Benchmark]: TraceAbstraction took 2710.26 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.2 MB in the beginning and 124.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 53.8 MB. Max. memory is 7.1 GB. [2019-12-27 18:02:31,177 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.39 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 101.3 MB in the beginning and 161.2 MB in the end (delta: -59.9 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.48 ms. Allocated memory is still 203.9 MB. Free memory was 160.2 MB in the beginning and 158.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.52 ms. Allocated memory is still 203.9 MB. Free memory was 158.4 MB in the beginning and 157.4 MB in the end (delta: 946.0 kB). Peak memory consumption was 946.0 kB. Max. memory is 7.1 GB. * RCFGBuilder took 423.68 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 136.2 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2710.26 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.2 MB in the beginning and 124.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 53.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 478 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 33 SDslu, 56 SDs, 0 SdLazy, 37 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 971 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...