/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/safe025_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:47:23,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:47:23,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:47:23,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:47:23,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:47:23,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:47:23,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:47:23,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:47:23,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:47:23,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:47:23,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:47:23,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:47:23,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:47:23,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:47:23,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:47:23,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:47:23,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:47:23,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:47:23,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:47:23,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:47:23,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:47:23,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:47:23,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:47:23,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:47:23,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:47:23,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:47:23,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:47:23,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:47:23,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:47:23,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:47:23,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:47:23,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:47:23,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:47:23,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:47:23,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:47:23,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:47:23,445 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 22:47:23,465 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:47:23,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:47:23,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:47:23,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:47:23,468 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:47:23,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:47:23,468 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:47:23,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:47:23,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:47:23,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:47:23,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:47:23,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:47:23,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:47:23,471 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:47:23,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:47:23,471 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:47:23,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:47:23,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:47:23,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:47:23,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:47:23,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:47:23,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:47:23,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:47:23,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:47:23,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:47:23,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:47:23,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:47:23,474 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:47:23,474 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:47:23,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:47:23,475 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:47:23,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:47:23,727 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:47:23,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:47:23,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:47:23,753 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:47:23,754 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:47:23,755 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2019-12-27 22:47:23,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e1b39de/bffbfa22ade5488eaea241e5c5afcfed/FLAGcec646159 [2019-12-27 22:47:24,383 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:47:24,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2019-12-27 22:47:24,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e1b39de/bffbfa22ade5488eaea241e5c5afcfed/FLAGcec646159 [2019-12-27 22:47:24,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e1b39de/bffbfa22ade5488eaea241e5c5afcfed [2019-12-27 22:47:24,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:47:24,673 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:47:24,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:47:24,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:47:24,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:47:24,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:47:24" (1/1) ... [2019-12-27 22:47:24,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a119257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:24, skipping insertion in model container [2019-12-27 22:47:24,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:47:24" (1/1) ... [2019-12-27 22:47:24,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:47:24,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:47:25,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:47:25,292 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:47:25,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:47:25,448 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:47:25,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25 WrapperNode [2019-12-27 22:47:25,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:47:25,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:47:25,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:47:25,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:47:25,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (1/1) ... [2019-12-27 22:47:25,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (1/1) ... [2019-12-27 22:47:25,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:47:25,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:47:25,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:47:25,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:47:25,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (1/1) ... [2019-12-27 22:47:25,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (1/1) ... [2019-12-27 22:47:25,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (1/1) ... [2019-12-27 22:47:25,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (1/1) ... [2019-12-27 22:47:25,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (1/1) ... [2019-12-27 22:47:25,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (1/1) ... [2019-12-27 22:47:25,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (1/1) ... [2019-12-27 22:47:25,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:47:25,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:47:25,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:47:25,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:47:25,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (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 22:47:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:47:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:47:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:47:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:47:25,599 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:47:25,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:47:25,599 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:47:25,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:47:25,599 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:47:25,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:47:25,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:47:25,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:47:25,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:47:25,603 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 22:47:25,964 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:47:25,964 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:47:25,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:47:25 BoogieIcfgContainer [2019-12-27 22:47:25,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:47:25,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:47:25,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:47:25,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:47:25,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:47:24" (1/3) ... [2019-12-27 22:47:25,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1256e455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:47:25, skipping insertion in model container [2019-12-27 22:47:25,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:25" (2/3) ... [2019-12-27 22:47:25,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1256e455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:47:25, skipping insertion in model container [2019-12-27 22:47:25,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:47:25" (3/3) ... [2019-12-27 22:47:25,975 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_tso.opt.i [2019-12-27 22:47:25,985 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:47:25,985 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:47:25,992 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:47:25,993 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:47:26,021 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,021 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,021 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,022 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,023 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,023 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,023 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,024 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,024 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,025 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,025 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,025 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,026 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,026 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,026 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,030 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,030 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,031 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,031 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,034 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,035 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,035 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,035 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,037 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,038 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:26,059 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:47:26,079 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:47:26,079 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:47:26,079 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:47:26,079 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:47:26,079 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:47:26,080 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:47:26,080 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:47:26,080 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:47:26,094 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 22:47:26,096 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:47:26,160 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:47:26,160 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:47:26,168 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 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:47:26,174 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:47:26,194 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:47:26,194 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:47:26,195 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 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:47:26,196 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:47:26,198 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:47:27,428 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 22:47:27,611 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-12-27 22:47:27,642 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 22:47:27,643 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 22:47:27,647 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:47:27,657 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:47:27,659 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:47:27,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:47:27,665 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:27,666 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:27,667 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:27,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:27,675 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-27 22:47:27,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:27,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068328674] [2019-12-27 22:47:27,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:27,910 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 22:47:27,911 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068328674] [2019-12-27 22:47:27,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:27,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:47:27,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1288260956] [2019-12-27 22:47:27,914 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:27,921 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:27,936 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:47:27,937 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:27,942 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:27,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:47:27,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:27,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:47:27,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:47:27,967 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:47:28,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:28,021 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 22:47:28,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:47:28,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:47:28,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:28,046 INFO L225 Difference]: With dead ends: 42 [2019-12-27 22:47:28,046 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:47:28,048 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 22:47:28,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:47:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:47:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:47:28,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:47:28,101 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 22:47:28,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:28,102 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:47:28,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:47:28,102 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:47:28,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:47:28,107 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:28,108 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:28,108 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:28,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:28,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1649012318, now seen corresponding path program 1 times [2019-12-27 22:47:28,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:28,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097268041] [2019-12-27 22:47:28,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:28,236 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 22:47:28,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097268041] [2019-12-27 22:47:28,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:28,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:47:28,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [518435214] [2019-12-27 22:47:28,238 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:28,239 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:28,246 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 13 transitions. [2019-12-27 22:47:28,246 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:28,249 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:28,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:47:28,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:28,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:47:28,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:47:28,252 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 22:47:28,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:28,259 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 22:47:28,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:47:28,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:47:28,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:28,260 INFO L225 Difference]: With dead ends: 32 [2019-12-27 22:47:28,260 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 22:47:28,261 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 22:47:28,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 22:47:28,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 22:47:28,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 22:47:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 22:47:28,270 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-27 22:47:28,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:28,270 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 22:47:28,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:47:28,271 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 22:47:28,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:47:28,272 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:28,272 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:28,272 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:28,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:28,273 INFO L82 PathProgramCache]: Analyzing trace with hash 420225671, now seen corresponding path program 1 times [2019-12-27 22:47:28,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:28,274 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436059810] [2019-12-27 22:47:28,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:28,453 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 22:47:28,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436059810] [2019-12-27 22:47:28,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:28,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 22:47:28,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [583232107] [2019-12-27 22:47:28,455 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:28,456 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:28,458 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:47:28,458 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:28,458 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:28,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 22:47:28,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:28,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 22:47:28,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:47:28,460 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 6 states. [2019-12-27 22:47:28,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:28,530 INFO L93 Difference]: Finished difference Result 32 states and 57 transitions. [2019-12-27 22:47:28,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 22:47:28,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 22:47:28,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:28,531 INFO L225 Difference]: With dead ends: 32 [2019-12-27 22:47:28,531 INFO L226 Difference]: Without dead ends: 24 [2019-12-27 22:47:28,532 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-27 22:47:28,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-27 22:47:28,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-27 22:47:28,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-27 22:47:28,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-12-27 22:47:28,536 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-12-27 22:47:28,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:28,536 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-12-27 22:47:28,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 22:47:28,537 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-12-27 22:47:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:47:28,537 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:28,537 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:28,538 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:28,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:28,538 INFO L82 PathProgramCache]: Analyzing trace with hash 868107411, now seen corresponding path program 1 times [2019-12-27 22:47:28,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:28,539 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279101564] [2019-12-27 22:47:28,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:28,575 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 22:47:28,576 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279101564] [2019-12-27 22:47:28,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:28,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:47:28,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [717860538] [2019-12-27 22:47:28,577 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:28,579 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:28,581 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 22:47:28,582 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:28,621 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:47:28,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:47:28,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:28,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:47:28,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:47:28,623 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 5 states. [2019-12-27 22:47:28,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:28,651 INFO L93 Difference]: Finished difference Result 27 states and 40 transitions. [2019-12-27 22:47:28,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:47:28,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 22:47:28,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:28,652 INFO L225 Difference]: With dead ends: 27 [2019-12-27 22:47:28,653 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 22:47:28,653 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 22:47:28,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 22:47:28,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 22:47:28,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 22:47:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 22:47:28,656 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-12-27 22:47:28,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:28,656 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 22:47:28,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:47:28,657 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 22:47:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:47:28,657 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:28,657 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:28,658 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:28,658 INFO L82 PathProgramCache]: Analyzing trace with hash 144947967, now seen corresponding path program 2 times [2019-12-27 22:47:28,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:28,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160290527] [2019-12-27 22:47:28,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:28,695 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 22:47:28,695 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160290527] [2019-12-27 22:47:28,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:28,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:47:28,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [3169195] [2019-12-27 22:47:28,696 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:28,698 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:28,700 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:47:28,700 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:28,701 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:28,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:47:28,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:28,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:47:28,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:47:28,702 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 22:47:28,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:28,726 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-27 22:47:28,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:47:28,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:47:28,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:28,727 INFO L225 Difference]: With dead ends: 18 [2019-12-27 22:47:28,727 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 22:47:28,728 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 22:47:28,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 22:47:28,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 22:47:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 22:47:28,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 22:47:28,730 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-27 22:47:28,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:28,730 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 22:47:28,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:47:28,731 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 22:47:28,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:47:28,731 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:28,731 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:28,731 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:28,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:28,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1810889517, now seen corresponding path program 3 times [2019-12-27 22:47:28,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:28,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9705656] [2019-12-27 22:47:28,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:28,770 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 22:47:28,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9705656] [2019-12-27 22:47:28,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:28,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:47:28,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [301258229] [2019-12-27 22:47:28,772 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:28,773 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:28,775 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 22:47:28,775 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:28,775 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:28,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:47:28,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:28,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:47:28,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:47:28,776 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 22:47:28,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:28,792 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 22:47:28,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:47:28,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:47:28,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:28,793 INFO L225 Difference]: With dead ends: 11 [2019-12-27 22:47:28,793 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:47:28,794 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 22:47:28,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:47:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:47:28,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:47:28,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:47:28,795 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:47:28,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:28,795 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:47:28,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:47:28,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:47:28,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:47:28,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:47:28 BasicIcfg [2019-12-27 22:47:28,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:47:28,801 INFO L168 Benchmark]: Toolchain (without parser) took 4128.70 ms. Allocated memory was 146.8 MB in the beginning and 244.8 MB in the end (delta: 98.0 MB). Free memory was 102.2 MB in the beginning and 112.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:28,802 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 22:47:28,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.55 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.7 MB in the beginning and 161.4 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:28,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.05 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:28,805 INFO L168 Benchmark]: Boogie Preprocessor took 28.22 ms. Allocated memory is still 204.5 MB. Free memory was 159.5 MB in the beginning and 157.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:28,806 INFO L168 Benchmark]: RCFGBuilder took 432.11 ms. Allocated memory is still 204.5 MB. Free memory was 157.6 MB in the beginning and 137.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:28,807 INFO L168 Benchmark]: TraceAbstraction took 2832.15 ms. Allocated memory was 204.5 MB in the beginning and 244.8 MB in the end (delta: 40.4 MB). Free memory was 136.9 MB in the beginning and 112.1 MB in the end (delta: 24.7 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:28,811 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 121.9 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.55 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.7 MB in the beginning and 161.4 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.05 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.22 ms. Allocated memory is still 204.5 MB. Free memory was 159.5 MB in the beginning and 157.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.11 ms. Allocated memory is still 204.5 MB. Free memory was 157.6 MB in the beginning and 137.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2832.15 ms. Allocated memory was 204.5 MB in the beginning and 244.8 MB in the end (delta: 40.4 MB). Free memory was 136.9 MB in the beginning and 112.1 MB in the end (delta: 24.7 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 10 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 44 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: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 44 SDslu, 47 SDs, 0 SdLazy, 50 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1459 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...